basic aerodynamics
21Drag coefficient — In fluid dynamics, the drag coefficient (commonly denoted as: cd, cx or cw) is a dimensionless quantity that is used to quantify the drag or resistance of an object in a fluid environment such as air or water. It is used in the drag equation,… …
22PZL-104 Wilga — 35 Role Utility aircraft Manufacturer …
23Helicopter — For other uses, see Helicopter (disambiguation). Helicopter An LAPD Bell 206 …
24Fuel economy-maximizing behaviors — (also known as green driving) describe techniques that drivers can use to optimize their automobile fuel economy. The energy in fuel consumed in driving is lost in many ways, including engine inefficiency, aerodynamic drag, rolling friction, and… …
25flight, history of — ▪ aviation Introduction development of heavier than air flying machines. Important landmarks and events along the way to the invention of the airplane include an understanding of the dynamic reaction of lifting surfaces (or wings), building… …
26Bullet — This article is about firearms projectiles. For other uses, see Bullet (disambiguation). Lead soft point, boat tailed, copper jacketed bullets A bullet is a projectile propelled by a firearm, sling, or air gun. Bullets do not normally contain… …
27Caterham 7 CSR — Infobox Automobile name = CSR 200/260 manufacturer = Caterham Cars Ltd engine = 2.3 liter inline four Ford Duratec tuned by Cosworth; 200 or convert|260|bhp|abbr=on transmission = Standard 5 speed (200 model), Custom Caterham close ratio 6 speed… …
28Wind turbine design — An example of a wind turbine, this 3 bladed turbine is the classic design of modern wind turbines Wind turbines History Design …
29Daniel Guggenheim Medal — The Daniel Guggenheim Medal is an American engineering award, established by Daniel and Harry Guggenheim. The medal is considered to be one of the greatest honors that can be presented for a lifetime of work in aeronautics.[1] Recipients have… …
30Theodore von Kármán — Infobox Scientist name = box width = image width =150px caption = Von Karman at the Caltech JPL birth date = birth date|1881|05|11 birth place = death date = death date and age|1963|05|06|1881|05|11 death place = residence = citizenship =… …
