1. These included 166 armoured UAV and 4 additional Britten-Norman Defender observation aircraft . 2. United States Air Force observation aircraft supports the Treaty on Open Skies. 3. *observation aircraft , joint venture between Aermacchi and Aeritalia, initially designated the MB-335. 4. On the last day of October, he shot down an LVG observation aircraft . 5. Soon afterwards, he attacks an Allied two-man observation aircraft , incapacitating the rear gunner. 6. The L-2 and L-3 Grasshopper light observation aircraft were also utilized. 7. After the Pearl Harbor attack on 7 December 1941, the O-49 Vigilant observation aircraft . 8. The Germans then became leery of firing on any of the khaki observation aircraft . 9. The Americans developed and made extensive use of the high-altitude observation aircraft for intelligence-gathering. 10. The OA-37B Dragonfly derivative was an armed observation aircraft developed during the Vietnam War.
Mobile