Information om | Engelska ordet PLANFORM

Exempel på hur man kan använda PLANFORM i en mening

• Its nicknames include: "Balalaika", because its planform resembles the stringed musical instrument of the same name; "Ołówek", Polish for "pencil", due to the shape of its fuselage, and "Én Bạc", meaning "silver swallow", in Vietnamese.
• The first examples were ready in 1939, but they proved to have unacceptably poor flight characteristics due to serious wing planform and fuselage design flaws.
• They then produced several versions of the Etrich Taube monoplane, as well the Doppeltaube biplane which used the same basic planform.
• Aspect ratio and other features of the planform are often used to predict the aerodynamic efficiency of a wing because the lift-to-drag ratio increases with aspect ratio, improving the fuel economy in powered airplanes and the gliding angle of sailplanes.
• The X-31 design was essentially an all-new airframe design, although it borrowed heavily on design elements and sometimes actual parts of previous production, prototype, and conceptual aircraft designs, including the British Aerospace Experimental Aircraft Programme (choice of wing type with canards, plus underfuselage intake), the German TKF-90 (wing planform concepts and underfuselage intake), F/A-18 Hornet (forebody, including cockpit, ejection seat, and canopy; electrical generators), F-16 Fighting Falcon (landing gear, fuel pump, rudder pedals, nosewheel tires, and emergency power unit), F-16XL (leading-edge flap drives), V-22 Osprey (control surface actuators), Cessna Citation (main landing gear's wheels and brakes), F-20 Tigershark (hydrazine emergency air-start system, later replaced) and B-1 Lancer (spindles from its control vanes used for the canards).
• While relatively easy for a trained eye to tell apart with the "finer" lines of the Ki-43's fuselage – especially towards the tail – and more tapered wing planform; in the heat of battle, given the brief glimpses and distraction of combat, Allied aviators frequently made mistakes in enemy aircraft identification in the heat of a dogfight, reportedly having fought "Zeros" in areas where there were no Navy fighters.
• It features a slightly swept wing, which is based on the larger de Havilland Comet wing planform, and uses large slotted flaps and airbrakes for operating from small airfields;.
• Aerodynamically, the HTO Hopper configuration features a rounded delta planform wing at a 60-degree leading edge sweep, which was matched with a central vertical stabilizer and a flat-bottomed underside for the purpose of maximizing the spacecraft's performance during hypersonic flight.
• Indeed, vorticity is trailed at any point on the wing where the lift varies span-wise (a fact described and quantified by the lifting-line theory); it eventually rolls up into large vortices near the wingtip, at the edge of flap devices, or at other abrupt changes in wing planform.
• An elliptical spanwise lift distribution cannot be achieved by an untwisted wing with an elliptical planform because there is a logarithmic term in the lift distribution that becomes important near the wing tips.
• Radar-absorbent material was applied to the airframe as part of its stealth configuration; in addition to the faceting of the design, similar to that of Have Blue and the F-117, the "sawtooth" wing profile bore similarities to the B-2 stealth bomber's planform.
• Both monohull and multihull sailboats can be retrofitted with hydrofoils, although greater stability can be achieved by using the wider planform of a catamaran or trimaran.
• Taper has the desirable effect of reducing the root bending stress by shifting the lift inboard, but it has been argued by some noted designers, including John Thorp and Karl Bergey, that an untapered rectangular planform is best for aeroplanes of less than 6,000 pounds gross weight.
• This method allows a wider choice of wing planform than sweepback and washout, and designs have included straight and even circular (Arup) wings.
• All the tail surfaces had the same airfoil (flat), planform (minor difference with different tailwheels), washout (none), distance from the wing and incidence to the fuselage.
• The single-piece wing was of mahogany with Dural inserts at the leading and trailing edges; it was of biconvex section and of tapered planform with an unswept half-chord line.

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