spring thrust
81Vault (architecture) — A Vault (French. voute, Italian. volta, German. Gewölbe, Polish. sklepienie , Spanish. bóveda ) is an architectural term for an arched form used to provide a space with a ceiling or roof. url=http://concise.britannica.com/ebc/article… …
82Operation Barbarossa — Part of the Eastern Front of World War II …
83Ramjet — A ramjet, sometimes referred to as a stovepipe jet, or an athodyd, is a form of jet engine that contains no major moving parts. Unlike most other airbreathing jet engines, ramjets have no rotary compressor at the inlet, instead, the forward… …
84Yom Kippur War — Battle of Syria redirects here. For the World War II campaign against the Vichy French in Syria, see Syria Lebanon Campaign. Yom Kippur War/October War Part of the …
85Operation Shingle — Part of World War II US Army troops landing at Anzio late January 1944 …
86Red Rock Canyon National Conservation Area — This article is about the National Conservation Area in Nevada. For other uses, see Red Rock Canyon. Red Rock Canyon National Conservation Area in Nevada is a 198,000 acre (801 km²) area managed by the Bureau of Land Management as part of its… …
87Battle of Berlin — For the bombing campaign on Berlin by the RAF from November 1943 to March 1944, see Battle of Berlin (air). Infobox Military Conflict conflict = Battle of Berlin caption = Soviet soldiers raising the Soviet flag over the Reichstag after its… …
88Undercarriage — This article is about aircraft landing gear. For the Devin the Dude album, see Landing Gear. Undercarriage Undercarriage of a Boeing 777 300 …
89Space Shuttle Challenger disaster — For more information about the final mission and crew of the Challenger, see STS 51 L. Space Shuttle Challenger s smoke plume after the in flight breakup that killed all seven crew members …
90Modern US endurance UAVs — Main article: History of unmanned aerial vehicles RQ 3A Darkstar UAV / classified Darkstar follow on Main article: RQ 3 DarkStar The Gnat 750 and Predator were the first in a series of Tier UAVs considered by the US Air Force. In the USAF plan,… …
