air collection system
21Dan-Air — For the Danish airline, see Danair. Dan Air Services IATA DA ICAO DAN Callsign …
22Liquid air cycle engine — A liquid air cycle engine (LACE) is a spacecraft propulsion engine that attempts to gain efficiency by gathering part of its oxidizer from the atmosphere. In a LOX/LH2 bipropellant rocket the liquid oxygen needed for combustion is the majority of …
23Malaysian Expressway System — Malaysian expressway logo The Malaysian Expressway System (Malay: Sistem Lebuhraya Malaysia), which begins with the North South Expressway (NSE), is currently in the process of being substantially developed. It was built by private companies… …
24Life support system — For other uses of Life support , see Life support (disambiguation). In human spaceflight, a life support system is a group of devices that allow a human being to survive in space. US government space agency NASA,[1] and private spaceflight… …
25Federal Reserve System — FRB and FED redirect here. For other uses, see FRB (disambiguation) and FED (disambiguation). Federal Reserve System …
26Davis–Monthan Air Force Base — Part of Air Combat Command (ACC) Located near: Tucson, AZ …
27Rhein-Main Air Base — Infobox Military Structure name=Rhein Main Air Base partof= location= Located near Frankfurt am Main, Germany coordinates= coord|50|2|0|N|8|34|14.2|E|region:DE HE type:airport caption= type=Air Force Base code= built=1936 builder= materials=… …
28Davis-Monthan Air Force Base — Infobox Airport name = Davis Monthan Air Force Base Part of Air Combat Command (ACC) image width = 300 caption = Aerial Photo of Davis Monthan Air Force Base 16 May 1992 image2 width = 200 caption2 = Location of Davis Monthan Air Force Base IATA …
29Continental Air Command — emblem Active 1948 1968 Country …
30postal 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… …
