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Most importantly, the maximum lift-to-drag ratio is independent of the weight of the aircraft, the area of the wing, or the wing loading. It can be shown that two main drivers of maximum lift-to-drag ratio for a fixed wing aircraft are wingspan and total wetted area. One method for estimating the zero-lift drag coefficient of an aircraft is the ...
A Gabrielli–von Karman diagram with the y-axis being the lift-to-drag ratio, which is the inverse of specific resistance. The von Kármán–Gabrielli diagram (also Gabrielli–von Kármán diagram , GvK diagram ) is a diagram which compares the efficiency of transportation methods by plotting specific tractive force , or specific resistance ...
The drag curve or drag polar is the relationship between the drag on an aircraft and other variables, such as lift, the coefficient of lift, angle-of-attack or speed. It may be described by an equation or displayed as a graph (sometimes called a "polar plot"). [ 1 ]
The logarithmic term with weight ratios is replaced by the direct ratio between / = where is the energy per mass of the battery (e.g. 150-200 Wh/kg for Li-ion batteries), the total efficiency (typically 0.7-0.8 for batteries, motor, gearbox and propeller), / lift over drag (typically around 18), and the weight ratio / typically around 0.3.
Download QR code; Print/export Download as PDF; Printable version; In other projects ... Lift-induced drag; Lift-to-drag ratio; P. Parasitic drag; S.
Lift-to-drag. Add languages. Add links. Article; Talk; English. ... Download QR code; Print/export Download as PDF; Printable version; In other projects
Confused about why someone wrote "ratio" on one of your comments on TikTok? Here's what you need to know about the slang and what it actually means.
The charts show the added lift benefit produced by ground effect. [ 3 ] For fan and jet-powered vertical take-off and landing (VTOL) aircraft, ground effect when hovering can cause suckdown and fountain lift on the airframe and loss in hovering thrust if the engine sucks in its own exhaust gas, which is known as hot gas ingestion (HGI).