/ Lockheed YO-3 Quiet Star
Lockheed YO-3 Quiet Star
The Lockheed YO-3 Quiet Star is an American single-engined, propeller-driven aircraft that was developed for battlefield observation during the Vietnam War.
Designed to be as quiet as possible, it was intended to observe troop movements in near-silence during the hours of darkness.
QT-1 Quiet Thruster
Proposed single-seat powered glider based on the Schweizer SGS 2-32, not built.
Two modified Schweizer X-26 two-seat sailplanes for evaluation, later modified with sensor packages as the QT-2PC.
QT-2PC PRIZE CREW
Two QT-2s with combat sensor packages for evaluation in Vietnam theatre, one reduced to spares and the other returned to the United States Navy as the Schweizer X-26B.
Modified Schweizer SGS 2-32 for engine/propeller development.
Production aircraft for the United States Army, 11 built.
29 ft 4 in (8.94 m)
57 ft (17 m)
213.1 sq ft (19.80 m2)
1:7 at 80kts IAS
Max take-off weight
3,800 lb (1,724 kg)
1 × Continental Model No. I0-360D engine , 210 hp (156 kW) at 2800 rpm
3-bladed laminated wood, constant-speed propeller.
103 mph (166 km/h, 90 kn)
80.6 mph (129.7 km/h, 70.0 kn)
64.4 mph (103.6 km/h, 56.0 kn).
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