cold air return
21Air Training Command — Infobox Military Unit unit name= Air Training Command caption= Air Training Command emblem dates= 1946 1993 country= United States allegiance= branch= United States Army Air Forces (1946 1947) United States Air Force (1947 1993) type= Major… …
22Cold War (1979–1985) — Alliances in 1980 …
23Air door — An air door or air curtain is a device used for separating two spaces from each other, usually at the exterior entrance. The most common configuration for air curtains is a downward facing blower fan mounted over an opening. Normally this opening …
24Cold Feet — For other uses, see Cold feet (disambiguation). Cold Feet Cold Feet intertitle Genre Comedy drama Created by …
25Air Force One — For the current aircraft, see Boeing VC 25. For other uses, see Air Force One (disambiguation). Air Force One SAM 28000, one of the two VC 25s used as Air Force One, above Mount Rushmore Air Force One is the official a …
26Air France — For other uses, see Air France (disambiguation). Air France Société Air France IATA AF ICAO AFR …
27Hot air ballooning — is the activity of flying hot air balloons. Attractive aspects of ballooning include the exceptional quiet (except when the propane burners are firing), the lack of a feeling of movement, and the bird s eye view. Since the balloon moves with the… …
28Central warm air furnace — A type of space heating equipment where a central combustor or resistance unit generally using gas, fuel oil, or electricity provides warm air through ducts leading to the various rooms. Heat pumps are not included in this category. A forced… …
29North Atlantic air ferry route in World War II — Air Transport Command emblem Map of all coordinates from Google …
30United States Air Forces in Europe — emblem Active 7 August 1945 Current …
