propeller performance curves
11Coandă effect — Venturi and Coandă effect The Coandă effect  / …
12Internal combustion engine — The internal combustion engine is an engine in which the combustion of a fuel (normally a fossil fuel) occurs with an oxidizer (usually air) in a combustion chamber. In an internal combustion engine, the expansion of the high temperature and high …
13Hybrid vehicle — For other types of hybrid transportation, see Hybrid vehicle (disambiguation). Hybrid technology redirects here. For the company formerly known as Hybrid Technologies, see Li ion Motors. Honda Insight hybrid …
14Homebuilt aircraft — Also known as amateur built aircraft or kit planes , homebuilt aircraft are constructed by persons for whom this is not a professional activity. These aircraft may be constructed from scratch, from plans, or from assembly kits. The safety record… …
15Birdman Chinook — For the Boeing helicopter, see CH 47 Chinook. Chinook ASAP Chinook Plus 2 Role …
16Maglev (transport) — MAGLEV, or magnetic levitation, is a system of transportation that suspends, guides and (usually) propels vehicles, predominantly trains, using magnetic forces. This method has the potential to be faster, quieter and smoother than wheeled mass… …
17John T. Parsons — Infobox Person name = John T. Parsons image size = 250px caption = birth date = Birth date and age|1913|10|13|mf=y birth place = Detroit death date = death date and age|2007|4|19|1913|10|13|mf=y death place = Traverse City occupation = Inventor… …
18List of QI episodes (E series) — infobox tvseason season name = QI Series E caption = dvd release date = country = UK network = BBC first aired = 21 September 2007 last aired = 14 December 2007 num episodes = 13 prev series = Series D next series = Series F|This is a list of… …
19postal system — System that allows persons to send letters, parcels, or packages to addressees in the same country or abroad. Postal systems are usually government run and paid for by a combination of user charges and government subsidies. There are early… …
20Civilian Coupé — Coupé Role Two seat private aircraft National origin United Kingdom Manufacturer The Civilian Aircraft Co, Ltd Designer Harold Boultbee First flight July 1929 Number built 5 The …
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