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searching for Directional stability 193 found (242 total)

Adhesion railway (3,506 words) [view diff] exact match in snippet view article find links to article

used from frictional contact mechanics. The forces which result in directional stability, propulsion and braking may all be traced to creep. It is present

AGO C.IV (1,000 words) [view diff] exact match in snippet view article find links to article

designed without a vertical fin, although one was promptly added when directional stability proved to be insufficient. The fuselage, while otherwise of an orthodox

Strake (aeronautics) (727 words) [view diff] exact match in snippet view article

for example, the Concorde had small nose strakes "to get a better directional stability". Double delta wing aircraft (Concorde, Tupolev Tu-144, Boeing 2707

Rifled breech loader (2,146 words) [view diff] exact match in snippet view article find links to article

the gun. The spin imparted by the gun's rifling gives projectiles directional stability and increased range. Loading from the rear of the gun leaves the

Bensen B-9 (196 words) [view diff] exact match in snippet view article find links to article

counter-rotating system of two, two-bladed rotors. A large tailfin provided directional stability, and the aircraft was controlled by a handlebar system extending

Weathervane effect (215 words) [view diff] exact match in snippet view article find links to article

nose of the aircraft into the wind. It is not to be confused with directional stability, as experienced by aircraft in flight. The term also refers to a

Bensen B-6 (282 words) [view diff] exact match in snippet view article find links to article

two-blade rotor mounted on a tubular framework above it. Small fins for directional stability were mounted at the rear of the skids. The pitch of the rotors was

Vertical stabilizer (3,388 words) [view diff] exact match in snippet view article find links to article

crosswind landing), as well as provide stability in yaw (weathercock or directional stability). The greater its position away from the center of gravity, the

Wheel-barrowing (255 words) [view diff] exact match in snippet view article find links to article

aeroplane's main wheels and this reduces the main wheels' contribution to directional stability, allowing the nose wheel to destabilise the aeroplane's direction

Gatard Statoplan Poussin (422 words) [view diff] exact match in snippet view article find links to article

horizontal stabiliser was fitted with small endplates to provide extra directional stability but there were no separate elevators. An unusual feature of the

Muskrat (3,141 words) [view diff] exact match in snippet view article find links to article

main means of propulsion, and the unique tail mainly important in directional stability. Muskrats spend most of their time in the water and can swim underwater

Bisnovat 5 (451 words) [view diff] exact match in snippet view article find links to article

fitted with a 45 degree swept fin of greater aspect ratio to improve directional stability, resumed on 26 January 1949. However, further delays were caused

Clément-Bayard No.1 (361 words) [view diff] exact match in snippet view article find links to article

design featured four large lobes at the aft end, intended to provide directional stability. Testing commenced on 29 October with Henry Kapferer at the controls

Surfboard fin (3,562 words) [view diff] exact match in snippet view article find links to article

mounted at the tail of a surfboard or similar board to improve directional stability and control through foot-steering. Fins can provide lateral lift

Diamond grinding of pavement (1,337 words) [view diff] exact match in snippet view article find links to article

potential. Diamond grinding also improves cornering friction, providing directional stability by tire tread-pavement groove interlock. Diamond grinding has been

Inertia coupling (1,569 words) [view diff] exact match in snippet view article find links to article

Techniques to prevent inertial roll coupling include increased directional stability (k) and reduced roll rate (ωr). Alternatively, the unstable aircraft

Combat rubber raiding craft (886 words) [view diff] exact match in snippet view article find links to article

the craft and gives the bottom of the hull a "V" shape, imparting directional stability and additional shock absorption. A wooden "transom" board at the

Cal T/4 (516 words) [view diff] exact match in snippet view article find links to article

has less headroom below, a lower Space Index, and perhaps lower directional stability (because of her relatively high aspect ratio keel)." List of sailing

Lapworth 24 (572 words) [view diff] exact match in snippet view article find links to article

the Gladiator 24) versus her comp[etitor]s provides considerable directional stability (ie., ability to keep sailing in one direction without needing to

ETAP 21i (637 words) [view diff] exact match in snippet view article find links to article

bilge submerges (and the windward rudder lifts clear.) As a result directional stability is exceptional, vital on short, light hulls, which can get out of

Beachcomber 25 (731 words) [view diff] exact match in snippet view article find links to article

sloop. The long grounding shoe acts like a long keel; increasing directional stability but reducing the ability to tack quickly." List of sailing boat

History of monorail (2,013 words) [view diff] exact match in snippet view article find links to article

the coning action of conventional adhesion railways to achieve directional stability. This would exclude rack railways and funicular railways. Another

Farman B.2 (233 words) [view diff] exact match in snippet view article find links to article

it required modification to the fin and rudder for problems with directional stability. Despite all these modifications the aircraft did not meet the required

Adverse yaw (1,382 words) [view diff] exact match in snippet view article find links to article

used to reduce adverse yaw to ease the pilot workload: A strong directional stability is the first way to reduce adverse yaw. This is influenced by the

Chine (aeronautics) (761 words) [view diff] exact match in snippet view article

significant effect on aircraft lift, drag, longitudinal balance and directional stability. The chines of the Lockheed Blackbird series extend about 40% of

AEG J.I (1,336 words) [view diff] exact match in snippet view article find links to article

other changes included the fitting of an enlarged fin to improve directional stability and a repositioned aileron link strut. By the signing of the Armistice

SZD-15 Sroka (497 words) [view diff] exact match in snippet view article find links to article

room in the cockpit, re-position the winch launch hook to increase directional stability during winch launching, and to increase the strength of the forward

Foucault's gyroscope (1,539 words) [view diff] exact match in snippet view article find links to article

its principal axes", allowing the study of a plane with "absolute directional stability". The mechanical precision of Foucault's gyroscope allowed this

List of X-4 flights (11 words) [view diff] exact match in snippet view article find links to article

1950 John Griffith 46-677 NACA 2 ? ? Longitudinal, latitudinal, directional stability, and control. X-4 #17 September-November, 1950 John Griffith 46-677

Aircraft dynamic modes (1,467 words) [view diff] exact match in snippet view article find links to article

Damping is increased by large directional stability and small dihedral and decreased by small directional stability and large dihedral. Although usually

Hafner Rotachute (1,139 words) [view diff] exact match in snippet view article find links to article

successful. The flexible tail section evidently offered inadequate directional stability, and the consequence was the Rotachute Mark II, that had a longer

Inflatable boat (2,643 words) [view diff] exact match in snippet view article find links to article

along the line of the hull to improve the hull's seakeeping and directional stability. These vessels are very light, so if powered with an engine, it

Antonov An-10 (2,510 words) [view diff] exact match in snippet view article find links to article

factory was. The first prototype flew on 7 March 1957, revealing poor directional stability which led to a taller vertical fin, and later to hexagonal auxiliary

Nicolas Minorsky (1,571 words) [view diff] exact match in snippet view article find links to article

book}}: ISBN / Date incompatibility (help) Minorsky, N. (1922). "Directional stability of automatically steered bodies". Journal of the American Society

Boeing P-12 (2,598 words) [view diff] exact match in snippet view article find links to article

received F4B-4 style vertical fins and rudders to address poor directional stability. F4B-3 (Boeing Model 235) The F4B-3 represented a significant departure

Sea trial (1,507 words) [view diff] exact match in snippet view article find links to article

involve a number of trials to determine the maneuverability and directional stability of the ship may be conducted. These include a direct and reverse

Kawanishi K-1 (508 words) [view diff] exact match in snippet view article find links to article

Later, it was re-engined with a 180 hp (130 kW) Daimler engine and directional stability was improved was increased with a new, long, low, flat-topped fin

Consolidated Vultee XP-81 (1,007 words) [view diff] exact match in snippet view article find links to article

XP-81 displayed good handling characteristics except for inadequate directional stability due to the longer forward portion of the fuselage (this was rectified

Nakajima Type 91 fighter (580 words) [view diff] exact match in snippet view article find links to article

deliveries took place late in 1931. However, issues arose with both directional stability and centre of gravity, with the result that the type was delayed

Stroukoff YC-134 (812 words) [view diff] exact match in snippet view article find links to article

YC-134's horizontal stabilizers were given endplates to improve directional stability. This gave the aircraft its distinctive three-tail look. Improved

List of X-3 flights (88 words) [view diff] exact match in snippet view article find links to article

1954 Joseph Walker 49-2892 NACA 8 ? ? Investigation of lateral and directional stability and control. X-3 #40 October 21, 1954 Joseph Walker 49-2892 NACA

RWD 16 (591 words) [view diff] exact match in snippet view article find links to article

did not appear a successful design, though. Test revealed lack of directional stability, therefore its rudder was much enlarged, the wings were fitted with

Howell torpedo (724 words) [view diff] exact match in snippet view article find links to article

gyroscope effect, which Howell patented. When, in an attempt to improve directional stability, Whitehead (using a Ludwig Obry design) adopted the gyroscope in

Lower Georges Heights Commanding Position (420 words) [view diff] exact match in snippet view article find links to article

accuracy and penetration as the spin induced to the shell gave it directional stability. Initially smooth-bore cannon were converted into rifles by re-boring

Kellett XR-8 (813 words) [view diff] exact match in snippet view article find links to article

Kellett chief test pilot Dave Driskill at the controls. A lack of directional stability was discovered, and was corrected by the addition of two extra tail

Vought XSO2U (992 words) [view diff] exact match in snippet view article find links to article

December. Flight testing of the SO2U showed that the aircraft lacked directional stability; the addition of a large ventral fin, connecting the rear of the

Polikarpov TIS (1,167 words) [view diff] exact match in snippet view article find links to article

(345 mph) at 5,800 m (19,000 ft) altitude. It suffered from a lack of directional stability and the engines were unreliable and vibrated above 5,000 m (16,000 ft)

Ranchu (1,137 words) [view diff] exact match in snippet view article find links to article

roll to the side while moving or at rest, as well as a lack of directional stability. Ranchu goldfish are also susceptible to dropsy, bladder issues

RRG Storch V (572 words) [view diff] exact match in snippet view article find links to article

of about equal area, cambered on their inner surfaces provided directional stability and control. Their profiles were lower and simpler than those on

Fokker FG-2 (537 words) [view diff] exact match in snippet view article find links to article

solo after it was assembled at the Wasserkuppe, revealing poor directional stability. Rudders with greater area were fitted to rectify this, which allowed

Albatros C.XII (767 words) [view diff] exact match in snippet view article find links to article

shock absorbers, was akin to that of the C.X. To ensure sufficient directional stability during flight, a small plywood-skinned under-fin was present in

Horten H.V (751 words) [view diff] exact match in snippet view article find links to article

engines, the fairings of which formed the only fin area to impart directional stability. One more aircraft was built, using conventional wooden materials:

Folding wing (1,263 words) [view diff] exact match in snippet view article find links to article

XB-70 Valkyrie. This increased both compression lift and enhanced directional stability at high speeds. Grumman A-6A Intruder folding wingtip of a Boeing

Draft (hull) (1,860 words) [view diff] exact match in snippet view article

cargo), and may ballast further to reduce windage or for better directional stability or seakeeping, or to distribute load along the hull to reduce hogging

Gatard Statoplan Alouette (178 words) [view diff] exact match in snippet view article find links to article

horizontal stabiliser was fitted with small endplates to provide extra directional stability but there were no separate elevators. Data from General characteristics

Teichfuss Cicogna (555 words) [view diff] exact match in snippet view article find links to article

pair of straight-edged, short wing tip fins and taller rudders for directional stability and control, the fins assisted by the side area of the flat sided

Canting keel (1,302 words) [view diff] exact match in snippet view article find links to article

energy inputs from waves and disturbed water, and a contribution to directional stability. The traditional fin keel, pointing straight down from the boat

Polikarpov I-3 (1,233 words) [view diff] exact match in snippet view article find links to article

Seel – Air Force Scientific Test Institute) criticized the lack of directional stability at high speeds and a slight problem in control response between

Yakovlev Yak-25 (3,432 words) [view diff] exact match in snippet view article find links to article

a 45 degree angle with large two-section flaps. To provide more directional stability, a ventral fin was attached below the swept cruciform tail. The

Northrop XP-79 (1,182 words) [view diff] exact match in snippet view article find links to article

wind tunnel, after which a large wire-braced fin was added for directional stability at high speeds. The first flight attempts were carried out by the

Antonov An-8 (1,314 words) [view diff] exact match in snippet view article find links to article

production was not recommended due to poor spin characteristics, directional stability and control issues, nosewheel shimmy, poor controllability when

Nagler NH-160 (309 words) [view diff] exact match in snippet view article find links to article

rotors, using a series of disc brakes. A small tail surface provided directional stability in forward flight. The smaller rotor would spin at a higher rpm

Fokker F.II (960 words) [view diff] exact match in snippet view article find links to article

fuselage of welded steel tube covered in fabric which provided enough directional stability that no vertical fin was fitted. The F.II had a fixed undercarriage

Britten-Norman BN-1 (517 words) [view diff] exact match in snippet view article find links to article

to the tail unit by adding small ancillary fins to improve the directional stability, inset ailerons were fitted, the JAP engine was replaced by a 55 hp

Hafner A.R.III Gyroplane (442 words) [view diff] exact match in snippet view article find links to article

gear and the rear fuselage included a large dorsal fin to provide directional stability. An unusual feature was the control system which was equipped with

Vought F6U Pirate (1,478 words) [view diff] exact match in snippet view article find links to article

tip on each side of the tailplane in an attempt to improve the directional stability of the aircraft. The fuselage was lengthened to fit additional equipment

Dynamic steering response (1,342 words) [view diff] exact match in snippet view article find links to article

continuous feedback and sensing by the system. It improves the directional stability at high speeds, so that no small steering adjustments are needed

Douglas X-3 Stiletto (1,753 words) [view diff] exact match in snippet view article find links to article

October, the research program was expanded to include lateral and directional stability tests. In these tests, the X-3 was abruptly rolled at transonic

Vought XF8U-3 Crusader III (1,422 words) [view diff] exact match in snippet view article find links to article

spill from the downstream side of the shock as it moved inside. The directional stability of an aircraft is provided by its vertical fin. This stability progressively

Roe I Triplane (1,212 words) [view diff] exact match in snippet view article find links to article

rudder mounted behind the tailplane, and as first built, additional directional stability was provided by surfaces between the interplane struts of the tail

Compression lift (234 words) [view diff] exact match in snippet view article find links to article

The XB-70 had folding wingtips to enhance both compression lift and directional stability at high speeds.

Gwinn Aircar (1,175 words) [view diff] exact match in snippet view article find links to article

wind-tunnel testing revealed low rudder control authority and poor directional stability, as well as problems with engine cooling. Convair persevered with

Gipsy Moth IV (2,727 words) [view diff] exact match in snippet view article find links to article

a piece to the boat's keel to provide Gipsy Moth IV with better directional stability to stop her broaching, but the modification did nothing to improve

Hull (watercraft) (2,805 words) [view diff] exact match in snippet view article

keel may be fitted on a hull to increase the transverse stability, directional stability or to create lift. Retractable appendages include centreboards and

N104RB Red Baron (628 words) [view diff] exact match in snippet view article find links to article

eight hydrogen peroxide thrusters around the nose to provide added directional stability as the control surfaces lost effect. On 2 October 1976 Greenamyer

Sukhoi Su-9 (1946) (1,587 words) [view diff] exact match in snippet view article

the control forces were very high at speed and it lacked enough directional stability. Enlarging the vertical stabilizer cured this last problem and hydraulic

Dory (boat) (2,381 words) [view diff] exact match in snippet view article

very low [8 in (20 cm) high] seats and are fitted with skegs for directional stability. Welsford recommends the carrying of a water container on a rope

Leading-edge cuff (1,762 words) [view diff] exact match in snippet view article find links to article

not sufficient to prevent a spin departure, the aircraft lacking directional stability at high angles of attack. With a ventral fin added, the aircraft

Darryl Greenamyer (930 words) [view diff] exact match in snippet view article find links to article

earlier attempt in 1966 by Greenamyer had to be aborted due to directional stability problems and an attempt in 1968 ended with a blown piston. The previous

Tairov Ta-3 (677 words) [view diff] exact match in snippet view article find links to article

summer of 1940 when one of the engines threw a connecting-rod. The directional stability was found to be unsatisfactory so the second prototype (OKO-6bis)

American Sportscopter Ultrasport 331 (499 words) [view diff] exact match in snippet view article find links to article

otherwise is conventional. The horizontal tailplane mounts end-fins for directional stability. The aircraft has an empty weight of 330 lb (150 kg) and a gross

Boulton Paul P.120 (1,166 words) [view diff] exact match in snippet view article find links to article

area of the fin, as a means of improving both longitudinal and directional stability. For the purpose of recording airflow behaviour, a cine camera was

Northrop YA-9 (1,628 words) [view diff] exact match in snippet view article find links to article

The aircraft had a large cruciform stabilizer in order to improve directional stability for low-level flight. Split ailerons were fitted that could be used

Vultee V-11 (2,052 words) [view diff] exact match in snippet view article find links to article

test bed. Equipped with enlarged vertical stabilizer (for improve directional stability) and powered by Lycoming O-1230 (12-cylinder opposed) engine. YA-19B

Kayak (7,985 words) [view diff] exact match in snippet view article find links to article

boats. Typically, kayak design is largely a matter of trade-offs: directional stability ("tracking") vs maneuverability; stability vs speed; and primary

Tail rotor (1,552 words) [view diff] exact match in snippet view article find links to article

during cruise flight, forward momentum will often provide some directional stability, as many helicopters are equipped with a vertical stabilizer. The

TAI Turna (658 words) [view diff] exact match in snippet view article find links to article

improvements to autonomy, reliability, aerodynamics, lateral and directional stability as well as available volume for modular payloads. In order to offer

Martin Baltimore (2,178 words) [view diff] exact match in snippet view article find links to article

aircraft's fairly high wing loading, high approach speed and a directional stability problems during takeoffs. The Italians operated the Baltimore for

Cameron D-96 (753 words) [view diff] exact match in snippet view article find links to article

by an order from the U.S.A. The early flights had revealed some directional stability problems, addressed by progressively increasing the number of tailfins

Wright Flyer III (1,576 words) [view diff] exact match in snippet view article find links to article

stronger, more durable, and with a longer tail to provide better directional stability and control. A larger cylinder bore engine provided more power,

Grumman F7F Tigercat (2,137 words) [view diff] exact match in snippet view article find links to article

caused the aircraft to fail carrier suitability trials was poor directional stability with only one engine operational, as well as problems with the tailhook

Control engineering (3,042 words) [view diff] exact match in snippet view article find links to article

(PDF) from the original on 2008-12-19. Minorsky, Nicolas (1922). "Directional stability of automatically steered bodies". Journal of the American Society

Shenyang J-8 (2,688 words) [view diff] exact match in snippet view article find links to article

were eventually resolved, although it continued to suffer poor directional stability. The design was finalized on 31 December 1979. The J-8 was already

Grumman EA-6B Prowler (6,463 words) [view diff] exact match in snippet view article find links to article

included: Leading edge strakes (to improve directional stability) Fin pod extension (to improve directional stability) Ailerons (to improve slow speed lateral

American Sportscopter Ultrasport 496 (521 words) [view diff] exact match in snippet view article find links to article

is ring-mounted and the horizontal tailplane mounts end-fins for directional stability. A ballistic parachute was a factory option. The aircraft has an

Chayair Sycamore (405 words) [view diff] exact match in snippet view article find links to article

The tailplane features five vertical tail surfaces for improved directional stability. The enclosed Sycamore Mk 1 version has an empty weight of 380 kg

Polikarpov I-153 (2,755 words) [view diff] exact match in snippet view article find links to article

as it gave a poor view from the cockpit and was blamed for poor directional stability. More recent reports from TsAGI, the Central Aerohydrodynamics Institute

Bronco All Terrain Tracked Carrier (1,886 words) [view diff] exact match in snippet view article find links to article

tracks and a running gear system for soft ground conditions and directional stability. Swimming operations require minimal preparation and it can achieve

Yacht (4,403 words) [view diff] exact match in snippet view article find links to article

shape and area. Sea kindliness is an indicator of steering ease, directional stability and quelling of motion induced by wind and waves. Multihulls offer

Scrub radius (843 words) [view diff] exact match in snippet view article find links to article

straight ahead position, less positive caster is needed to maintain directional stability. SAI adds positive camber while turning for both steering tires

Julius Arigi (1,121 words) [view diff] exact match in snippet view article find links to article

with the tail assembly of this aircraft because he felt it lacked directional stability. He redesigned the horn-balanced rudder with a low aspect fin and

Tailless aircraft (2,551 words) [view diff] exact match in snippet view article find links to article

wing tips, combined with steep downward-angled anhedral, enhanced directional stability. Although originally conceived as a monoplane, Dunne's initial designs

Lavochkin La-150 (1,586 words) [view diff] exact match in snippet view article find links to article

parade revealed a number of flaws in the design including poor directional stability, a cramped cockpit without heating or ventilation, poor access to

Beneteau Figaro 2 (1,163 words) [view diff] exact match in snippet view article find links to article

innovation factor high: The Figaro II features a double rudder for large directional stability and controllability single-handed, it's still a very light construction

Cessna Citation X (1,897 words) [view diff] exact match in snippet view article find links to article

insufficient airflow), engines not meeting the bird strike criteria and directional stability challenges. Efforts to increase the maximum take-off weight of the

Scroggs The Last Laugh (593 words) [view diff] exact match in snippet view article find links to article

The fuselage thus formed a deep keel which provided both lift and directional stability. The original delta-winged design of 1917 proved impractical and

Curtiss P-40 Warhawk variants (3,854 words) [view diff] exact match in snippet view article find links to article

Along with the added power of the Merlin engine came a decrease in directional stability. Curtiss attempted to fix this by fitting a dorsal fillet to the

Scaled Composites ARES (1,608 words) [view diff] exact match in snippet view article find links to article

actuated by push-rods, and the spoil-flaps are hydraulically operated. Directional stability is provided by twin boom-mounted fins, each of 18 sq ft (1.7 m2)

Van Berkel W-B (751 words) [view diff] exact match in snippet view article find links to article

remained deep and high sided back to the tail, possibly offering some directional stability in the absence of a fixed fin. The tailplane was mounted on top

Alajuela 38 (843 words) [view diff] exact match in snippet view article find links to article

"this is a passage or cruising boat, not a racer. Long keel gives directional stability, but Alajuela will not turn on a dime. Double-enders offer less

Morris Eight (1,211 words) [view diff] exact match in snippet view article find links to article

powered equivalent, while its relatively wide 45 inch track aided directional stability on corners. The Series I designation was used from June 1935 in

Gourdou-Leseurre GL.2 (871 words) [view diff] exact match in snippet view article find links to article

side on the Type A, but also a revised fin and rudder for improved directional stability, and strengthened undercarriage. Twenty examples were delivered

RNLB The Oddfellows (B-818) (1,419 words) [view diff] exact match in snippet view article

aft of the hull. This deep 'V' bow shape gives the boat excellent directional stability when underway and the flat run assists in getting the boat up on

I-201-class submarine (1,186 words) [view diff] exact match in snippet view article find links to article

instead of the more usual bow-mounted dive planes; this improved directional stability and may have decreased turbulence-induced drag. Reduce the crew

De Havilland Express (2,855 words) [view diff] exact match in snippet view article find links to article

until the last example was burnt out in 1958. Seriously lacking in directional stability, the D.H.86s were frequently in trouble. On 19 October 1934 Holyman's

Lohner Type AA (924 words) [view diff] exact match in snippet view article find links to article

favor of the twin struts with wire braces and in an effort to gain directional stability the dorsal fin became even more pronounced. First flown on 28 June

Max Kramer (791 words) [view diff] exact match in snippet view article find links to article

even higher descent speeds into the transonic range without losing directional stability. The X-5 and substituted greater explosive power for descent speed

Anderson Greenwood AG-14 (1,023 words) [view diff] exact match in snippet view article find links to article

the time it was designed. The wing has 7 degrees of dihedral for directional stability. A four inch propeller shaft extension allows the engine to be mounted

Anderson Greenwood AG-14 (1,023 words) [view diff] exact match in snippet view article find links to article

the time it was designed. The wing has 7 degrees of dihedral for directional stability. A four inch propeller shaft extension allows the engine to be mounted

George S. Schairer (1,459 words) [view diff] case mismatch in snippet view article find links to article

the Wayback Machine Retrieved 3 August 2011. Schairer, George S. "Directional Stability and Vertical Surface Stalling", Journal of the Aeronautical Sciences

Caliber 40 (1,120 words) [view diff] exact match in snippet view article find links to article

performance benefits of fin-keeled, spade-rudder designs and the directional stability of traditional full-keel designs. Above the waterline, the Caliber

Charles W. Robinson (1,387 words) [view diff] exact match in snippet view article find links to article

Additional benefits to the design include better fuel efficiency, directional stability, wake suppression and a gentle ride with less slamming and rolling

Outboard tail (1,201 words) [view diff] exact match in snippet view article find links to article

margins when landing. Vertical tail fins traditionally provide directional stability and control. In outboard configuration they can also enhance airflow

SR.N1 (2,535 words) [view diff] exact match in snippet view article find links to article

cushion and the corresponding principles, such as intake design, directional stability, and control; design studies were also performed for various sizes

Feedback (5,792 words) [view diff] exact match in snippet view article find links to article

loop ..." Araki, M., PID Control (PDF) Minorsky, Nicolas (1922). "Directional stability of automatically steered bodies". Journal of the American Society

Industrial process control (2,671 words) [view diff] exact match in snippet view article find links to article

Sons Inc. pp. 1–2. ISBN 978-1119993872. Minorsky, Nicolas (1922). "Directional stability of automatically steered bodies". Journal of the American Society

Canard (aeronautics) (4,151 words) [view diff] exact match in snippet view article

hdl:2060/19870013196. TM 88354. ...the Flyer was highly unstable... The lateral/directional stability and control of the Flyer were marginal. Garrison (2002), page 85;

Avro Manchester (3,442 words) [view diff] exact match in snippet view article find links to article

L7246 First prototype originally with twin tail. Due to lack of directional stability, it had a third fin added. Became a training airframe in November

Beechcraft Starship (2,664 words) [view diff] exact match in snippet view article find links to article

have transmitted propeller noise into the airframe. In its place, directional stability and control is provided by rudders mounted on the winglets. Because

Airbus Beluga (3,687 words) [view diff] exact match in snippet view article find links to article

tailplane was strengthened and fitted with auxiliary fins to maintain directional stability. The tailplane trim tank was also deleted. To provide access to

Supermarine Spitfire (Griffon-powered variants) (7,350 words) [view diff] exact match in snippet view article

hand lever ... The next essential ... was an improvement in the directional stability and control and a new fin was drawn out with a substantial increase

Short SB.4 Sherpa (1,778 words) [view diff] exact match in snippet view article find links to article

keen proponent of the tailless approach. He also observed that directional stability was a critical issue without the application of traditional fins

Sailing yacht (3,509 words) [view diff] exact match in snippet view article find links to article

shape and area. Sea kindliness is an indicator of steering ease, directional stability and quelling of motion induced by wind and waves. The displacement

North American X-15 (4,055 words) [view diff] exact match in snippet view article find links to article

percent of the wing area was required to give the X-15 adequate directional stability. — Wendell H. Stillwell, X-15 Research Results (SP-60) Stability

Mikoyan-Gurevich MiG-9 (3,556 words) [view diff] exact match in snippet view article find links to article

the engines. An additional problem was that the fin hampered the directional stability of the aircraft and caused it to yaw after 3–5 shots. Another attempt

Seahopper (815 words) [view diff] exact match in snippet view article find links to article

prams, characterized by their centerboard and skeg, which provide directional stability. Additionally, the skeg features a skeg wheel, facilitating movement

Gyrocompass (4,476 words) [view diff] exact match in snippet view article find links to article

it could be rendered insensitive to lateral motion and maintain directional stability. A gyroscope, not to be confused with a gyrocompass, is a spinning

Lambert Twin Monocoach (857 words) [view diff] exact match in snippet view article find links to article

performance figures, it was judged short of power and also had poor directional stability with one engine out. The radials were therefore replaced with a

HMS Inflexible (1876) (3,065 words) [view diff] exact match in snippet view article

smaller HMS Ajax and HMS Agamemnon, but resulted in a serious lack of directional stability in those ships. The ship had two compound steam engines manufactured

Republic P-47 Thunderbolt (7,183 words) [view diff] exact match in snippet view article find links to article

and landing, but it showed excessive rolling stability and poor directional stability. Soviet engineers disassembled the third aircraft to examine its

Wright Flyer (5,981 words) [view diff] exact match in snippet view article find links to article

hdl:2060/19870013196, ... the Flyer was highly unstable ... The lateral/directional stability and control of the Flyer were marginal ... Culick, Fred E. C. (September

Avro York (4,503 words) [view diff] exact match in snippet view article find links to article

necessitated fitting a third central fin to retain adequate control and directional stability; the third fin was fitted as standard on subsequent production aircraft

Control theory (6,774 words) [view diff] exact match in snippet view article find links to article

from the original on December 19, 2008. Minorsky, Nicolas (1922). "Directional stability of automatically steered bodies". Journal of the American Society

Alvis Speed 20 (850 words) [view diff] exact match in snippet view article find links to article

on Alvis's racing cars since 1925, the aim being to provide good directional stability, road-holding and comfort. The steering and suspension was a star

Wingtip device (4,713 words) [view diff] exact match in snippet view article find links to article

the winglets increased range by about 6.5 percent and improved directional stability. Learjet's application of winglets to production aircraft continued

Opel 1,3 Liter (1,108 words) [view diff] exact match in snippet view article find links to article

wheels were perfectly balanced each time a new tyre was fitted, directional stability was further and alarmingly compromised by savage vibrations travelling

Boeing B-17 Flying Fortress (16,665 words) [view diff] exact match in snippet view article find links to article

NX19901, it was found that two B-17s had already spun from lack of directional stability. British combat experience with the B-17 was also showing the need

1963 Elephant Mountain B-52 crash (2,201 words) [view diff] exact match in snippet view article find links to article

the loss of the vertical stabilizer, the aircraft had lost its directional stability and rolled uncontrollably. Originally, the B-52 was designed to

Lockheed AH-56 Cheyenne (4,588 words) [view diff] exact match in snippet view article find links to article

systems were sufficient. Deficiencies were identified in lateral directional stability, uncommanded motion during maneuvering, high vibration, and poor

Boat building (5,331 words) [view diff] exact match in snippet view article find links to article

cheap to build but, being less stable and having no keel to give directional stability, they are unsuitable for sea-going vessels. (However, large ships

Canadair CL-415 (3,398 words) [view diff] exact match in snippet view article find links to article

winglets have been adopted on this model for the purpose of improving directional stability. The CL-415 can scoop up to 6,140 L (1,350 imp gal; 1,620 US gal)

List of works by Nicolas Minorsky (2,116 words) [view diff] exact match in snippet view article find links to article

CS1 maint: publisher location (link) Minorsky, N. (May 1922). "Directional stability of automatically steered bodies". Journal of the American Society

Wing configuration (5,550 words) [view diff] exact match in snippet view article find links to article

XB-70 Valkyrie wing folded down to enhance compression lift and directional stability during supersonic cruise. (Many aircraft have wings that may be

Handley Page Type O (4,153 words) [view diff] exact match in snippet view article find links to article

elevators, there was still a tail oscillation problem. A lack of directional stability caused by the increased forward side area was partly cured by adding

IAI Lavi (3,594 words) [view diff] exact match in snippet view article find links to article

capacity, a smooth low-altitude flight attitude, and high levels of directional stability while flown at high angles of attack (AOA). The canard generated

GAF Nomad (4,687 words) [view diff] exact match in snippet view article find links to article

the retraction of the undercarriage was quickly rectified, while directional stability was augmented by a 30 per cent increase in the area of both the

Dodge Charger (1966) (5,412 words) [view diff] exact match in snippet view article

The tall wing also helped in an unintended way, by giving the car directional stability due to its deeply splinted sides. The Charger Daytona engineering

Boeing 707 (8,027 words) [view diff] exact match in snippet view article find links to article

modifications were aimed at mitigating Dutch roll by providing more directional stability in yaw. An early JT4A turbojet A later JT3D low-bypass turbofan

Brachial plexus injury (5,050 words) [view diff] exact match in snippet view article find links to article

greater variability in the postural oscillation, evaluated by the directional stability index. The results alert the clinical community about the necessity

De Havilland Hornet (6,149 words) [view diff] exact match in snippet view article find links to article

aircraft to comply with a new requirement to provide "feet off" directional stability with one engine stopped. On 25 October 1948, the first deck trials

NSU Typ 110 (1,434 words) [view diff] exact match in snippet view article find links to article

reasonable stopping power. Less in the NSU's favour was its poor directional stability in cross winds, a particular issue for Autobahn cruising. German

Waverider (3,057 words) [view diff] exact match in snippet view article find links to article

speeds, and it added more vertical surface which helped improve the directional stability, which decreased at high speed.[citation needed] Nonweiler's original

Bristol Beaufort (7,225 words) [view diff] exact match in snippet view article find links to article

upper wing behind the engine nacelles to smooth airflow and improve directional stability. As Blenheim production took priority and engine overheating problems

Donald Campbell (5,441 words) [view diff] exact match in snippet view article find links to article

fixed hydrodynamic stabilising fin, attached to the transom to aid directional stability, and exert a marginal down-force on the nose were incorporated into

Heinkel He 100 (5,507 words) [view diff] exact match in snippet view article find links to article

a number of problems with the earlier He 112, notably a lack of directional stability. In addition, the Luftwaffe test pilots disliked the high wing loading

Porsche 911 GT3 (10,775 words) [view diff] exact match in snippet view article find links to article

muscular-looking rear end conceals a wider track that not only improves directional stability but also increases the potential cornering grip. However, drag is

Patrie (airship) (4,399 words) [view diff] exact match in snippet view article

throughout the ballonet without affecting the stability of the airship. Directional stability was achieved by four fixed vanes, two vertical and two horizontal

Porsche 911 (14,921 words) [view diff] exact match in snippet view article find links to article

PDCC helps the car corner flat and is said to improve high-speed directional stability and outright lateral body control, but according to several reviews

Morris Minor (7,008 words) [view diff] exact match in snippet view article find links to article

the car was nose-heavy when lightly laden, leading to superior directional stability, and when fully laden it achieved nearly equal weight balance, so

Wilford Gyroplane (1,198 words) [view diff] exact match in snippet view article find links to article

Pitch control was now also shared between rotor and elevator. Directional stability and yaw control continued to be provided by a much broader fin and

Nash Metropolitan (6,834 words) [view diff] exact match in snippet view article find links to article

good" road-holding, "pronounced understeer" in cornering, "good directional stability," "decidedly vague steering," a turning circle that was "stately

Landing gear (10,960 words) [view diff] exact match in snippet view article find links to article

differentially as a rudder. A fixed fin, known as a skeg, has been used for directional stability. A skeg, was added to the second step on the Kawanishi H8K flying

Ilyushin Il-62 (7,059 words) [view diff] exact match in snippet view article find links to article

regarded by pilots and passengers alike, especially for its strong directional stability in high turbulence (although landings are sometimes bouncy), smooth

Contessa 32 (2,084 words) [view diff] exact match in snippet view article find links to article

bestows additional lateral resistance to the hull aft producing directional stability, its robust design also supports and protects the rudder. The hull

Jaguar XJ220 (7,748 words) [view diff] exact match in snippet view article find links to article

unassisted steering and pedals, underwhelming brakes without ABS, poor directional stability and "terrible visibility" were also disliked. Most criticised was

Lockheed F-104 Starfighter (16,330 words) [view diff] exact match in snippet view article find links to article

including strengthening the airframe, adding a ventral fin to improve directional stability at supersonic speed, and installing a boundary layer control system

Hawker Sea Fury (7,635 words) [view diff] exact match in snippet view article find links to article

aboard the aircraft carrier HMS Victorious. Carrier testing revealed directional stability issues related to rudder effectiveness during landing, and this

McDonnell Douglas AV-8B Harrier II (11,538 words) [view diff] exact match in snippet view article find links to article

accommodate the second cockpit. To compensate for the slight loss of directional stability, the vertical stabilizer's area was enlarged through increases in

Proportional–integral–derivative controller (12,085 words) [view diff] exact match in snippet view article find links to article

on 2011-07-08. Retrieved 2011-04-04. Minorsky, Nicolas (1922). "Directional stability of automatically steered bodies". Journal of the American Society

Honda NSX (first generation) (7,596 words) [view diff] exact match in snippet view article

optimize visibility while the long tail design enhanced high speed directional stability. The NSX was designed to showcase several automotive technologies

Gloster Meteor (14,440 words) [view diff] exact match in snippet view article find links to article

Meteor itself. At high speeds the Meteor had a tendency to lose directional stability, often during unfavourable weather conditions, leading to a "snaking"

Hawker Tempest (10,139 words) [view diff] exact match in snippet view article find links to article

doubled the vertical tail surface area, made necessary because the directional stability with the original Typhoon fin had been reduced over that of the

Mikoyan-Gurevich MiG-23 (18,733 words) [view diff] exact match in snippet view article find links to article

parachute for landings), the MiG-23 had a ventral fin to improve directional stability at high speeds. During take-off and landing, the fin hinged sideways

Douglas Bader (11,723 words) [view diff] exact match in snippet view article find links to article

dangerous stunts. While very fast for its time, the Bulldog had directional stability problems at low speeds, which made such stunts exceptionally dangerous

Alfa Romeo Giulia (2015) (9,225 words) [view diff] exact match in snippet view article

translates into segment-beating vehicle control in terms of traction and directional stability on bends.[non-primary source needed] Meanwhile, the Giulia Ti is

Gyro monorail (3,345 words) [view diff] exact match in snippet view article find links to article

braking, which is feasible with a monorail, but would upset the directional stability of a conventional rail vehicle. This has the potential of much shorter

Glossary of rail transport terms (23,538 words) [view diff] exact match in snippet view article find links to article

railway vehicle or bogie caused by the coning action on which the directional stability of an adhesion railway depends. The truck or bogie wanders from

Bluebird K7 (6,717 words) [view diff] exact match in snippet view article find links to article

fixed hydrodynamic stabilising fin attached to the transom to aid directional stability and exert a marginal down-force on the nose were incorporated into

Bicycle and motorcycle dynamics (16,098 words) [view diff] exact match in snippet view article find links to article

of the front wheel contact patch. A factor that influences the directional stability of a bike is wheelbase, the horizontal distance between the ground

Roland Beamont (5,563 words) [view diff] exact match in snippet view article find links to article

the P.1B The P.1A was limited to Mach 1.5 because of a lack of directional stability due to insufficient fin area. The original Air Ministry specification

List of X-1 flights (34 words) [view diff] exact match in snippet view article find links to article

1946 Jack Woolams 46-062 Bell 6 #1 ? ? Pinecastle AAF Base, FL Directional stability tests. Glide flight. XS-1 #7 February 25, 1946 Jack Woolams 46-062

Finnpusku (4,577 words) [view diff] exact match in snippet view article find links to article

barges, being towed in the tugs' wake, have skegs that improve directional stability but increase drag. Positioning the tug behind the barge in a stern

List of accidents and incidents involving military aircraft (1960–1969) (38,834 words) [view diff] exact match in snippet view article

deflection produced large erratic aerodynamic disturbances and loss of directional stability. Aircraft is repaired. 1 April Tripartite Evaluation Squadron Hawker