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This vehicle can be considered an AAMV, since it has two planing sponsons separated by a wing section. Therefore, it is a vehicle with aerodynamic and hydrodynamic surfaces, designed to obtain aerodynamic and hydrodynamic lift. In his article Ward presented the results of some trials: the KUDU II was able to run at 78 knots (144 km/h).
In aerodynamics, the lift-to-drag ratio (or L/D ratio) is the lift generated by an aerodynamic body such as an aerofoil or aircraft, divided by the aerodynamic drag caused by moving through air. It describes the aerodynamic efficiency under given flight conditions. The L/D ratio for any given body will vary according to these flight conditions.
Xi'an MA60-MPA Fearless Albatross: Maritime patrol and ASW variant offered for sale at Airshow China 2002. [8] Xi'an MA40: Reduced capacity 40-seat variant offered for sale in 2002. [8] Xi'an MA60H-500: A military cargo version of the MA-60, with rear cargo ramp. [8] Xi'an MA600: A much improved MA60, the prototype of which was completed on 29 ...
Nonplanar wings: results for the optimal aerodynamic efficiency ratio ε. The parameter ε is the optimal aerodynamic efficiency ratio [25] and represents the ratio between the aerodynamic efficiency of a given non-planar wing and the corresponding efficiency of a reference classical cantilevered wing with the same wing span and total lift ...
Thus, a long, narrow wing has a high aspect ratio, whereas a short, wide wing has a low aspect ratio. [23] 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 fuel economy in aircraft.
His 1961 car attempted to use the shaped underside method but there were too many other aerodynamic problems with the car for it to work properly. His 1966 cars used a dramatic high wing for their downforce. His Chaparral 2J "sucker car" of 1970 was revolutionary.
Thus, a long, narrow wing has a high aspect ratio, whereas a short, wide wing has a low aspect ratio. [ 1 ] 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 ...
For conventional fixed-wing aircraft with moderate aspect ratio and sweep, Oswald efficiency number with wing flaps retracted is typically between 0.7 and 0.85. At supersonic speeds, Oswald efficiency number decreases substantially. For example, at Mach 1.2 Oswald efficiency number is likely to be between 0.3 and 0.5. [1]