rear obstacle sensor
21Naval mine — Polish wz. 08/39 contact mine. The protuberances around the top of the mine, called Hertz horns, are part of the detonation mechanism …
22Roboreptile — The Roboreptile toy robot manufactured by WowWee Ltd. The Roboreptile has infrared and sound sensors, and is able to autonomously explore its environment while avoiding obstacles. It can also operate in different modes where it simultates… …
23OV-10 Bronco — Infobox Aircraft name = OV 10 Bronco type = Light attack and observation aircraft manufacturer = North American Rockwell caption = An OV 10 firing a white phosphorus smoke rocket to mark a ground target designer = first flight = 16 July 1965… …
24United States Air Force — USAF redirects here. For other uses, see USAF (disambiguation). The U.S. Air Force redirects here. For the song, see The U.S. Air Force (song). United States Air Force …
25Pilot (locomotive) — Leading truck and pilot on the John Bull Pi …
