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The government of the United States has tested military disc-shaped aircraft, such as the Avro Avrocar (a hovercraft aka air cushioned vehicle), the Chance-Vought V-173, and the uninhabited recon flying vehicle: the Sikorsky Cypher I. There is no credible evidence that they have ever found a vehicle that came from another planet.
Reconaissance. Surveillance. Observation. Depending on context, you could use stealth, espionage or spying too.
Stealth Chopper Recon Chopper Attack Chopper Chopper Police Copter News Copter
http://www.aerospaceweb.org/aircraft/recon/sr71/sr71_11.jpg
on your third visit to tranquility get your threat level to three or four if neccesary. recon choppers should flying around. the recon choppers shoot missiles so you might get hit while scanning it. therfore it is a fairly hard veichle to scan.
The Mosquito was a WW2, twin-engine aircraft built by DeHaviland. It was very light as it was made of wood and fabric but looked like a modern aircraft. It was used as a recon aircraft and could drop a few bombs. It was faster than most German fighters and could out run them.
In the early 1960's by the Lockheed Skunk Works. It saw service as a recon aircraft from 1964 to 1998.
It was designed to be a long range recon jet. but it really deepens on how fast its flying and at what altitude.
A combined air arms force including recon, ground support, bombers with fighter support and recon to provide an after action report. In modern terms, recon is done by sattellite, fighters also provide fire suppression and ground support and can provide a bombing capability, so a single flight of modern aircraft can constitute an air armada.
so that our forces can use advanced tactics like uma unmanned aircraft or more know as a predator which can be used for recon of enemy territory
police chopper:get 2 threat signs stealth chopper:get 4 threat signs chopper:in a mission news chopper: aside a pool in the plaza recon chopper: threat 3
-Clover Recon -Heart Recon -Box Recon