crew proficiency (
21George Air Force Base — Infobox Military Structure name=George Air Force Base partof=Tactical Air Command (TAC) location= Located near Victorville, California coordinates= Coord|34|35|51|N|117|22|59|W|type:airport caption= 28 May 1994 Location of George AFB type=Air… …
223d Armored Cavalry Regiment (United States) — 3d Armored Cavalry Regiment 3d Armored Cavalry Regiment coat of arms Active 1846–present Country U …
23Morse code — Chart of the Morse code letters and numerals Morse code is a method of transmitting textual information as a series of on off tones, lights, or clicks that can …
24List of spaceflight-related accidents and incidents — Death in space redirects here. For death in specifically outer space conditions, see Space exposure. Space Shuttle Challenger disintegrates 73 seconds after launch, due to hot gases escaping the SRBs leading to structural failure of the external… …
25Third Mate — Infobox shipping job name = Third mate othernames = Third officer photo = Life vest.jpg photo department = Deck department licensed = Yes epoch = location = watch at sea = Mate on watch watch at sea time = 8 12, 20 24 watch in port = Mate on… …
26Colgan Air Flight 3407 — A Dash 8 Q400 similar to the aircraft involved. Accident summary Date …
27Breakdance — Articleissues refimprove=November 2007 citationstyle=November 2007Breakdance, breaking, b boying or b girling is a street dance style that evolved as part of the hip hop movement among African American and Puerto Rican youths in Manhattan and the …
28Dale Earnhardt, Jr. — Ralph Dale Earnhardt, Jr. Born October 10, 1974 (1974 10 10) (age 37) Kannapolis, North Carolina, U.S. Height …
29Boeing RC-135 — RC 135 An RC 135 Rivet Joint reconnaissance aircraft moves into position behind a KC 135 Stratotanker for aerial refueling. Role …
30T-34 — This article is about the Soviet medium tank. For other uses, see T34 (disambiguation). T 34 T 34 85 at Musée des Blindés Type Medium tank …
