The Lockheed YO-3 Quiet Star is an American two seat single engine military observation aircraft developed for quiet night reconnaissance. Discover Lockheed YO-3 Quiet Star aircraft for sale worldwide on AvPay. Browse active Lockheed YO-3 Quiet Star listings and find available aircraft across the USA, North America, UK, Europe, Asia, Africa, Australia and South America. Connect directly with aircraft brokers, private sellers, operators, collectors and museums. Explore the full inventory of aircraft for sale on AvPay here!
Finding a Lockheed YO-3 Quiet Star for Sale on AvPay
AvPay offers a global marketplace for Lockheed YO-3 Quiet Star aircraft, connecting buyers and sellers across the USA, North America, UK, Europe, Asia, Africa, Australia, South America, and beyond. The Lockheed YO-3 Quiet Star is a fixed wing observation aircraft built to minimise acoustic signature, and it is best known for night reconnaissance work during the Vietnam War. When examples appear on the market they usually attract specialist operators, museums and historic aircraft collectors looking for a rare platform with a unique mission story.
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Interesting facts about the Lockheed YO-3 Quiet Star
✈ Lockheed developed the YO-3 Quiet Star to a United States Army requirement for a night observation aircraft that ground troops could not easily hear from below.
✈ The design traces back to the Schweizer SGS 2-32 sailplane, and that glider lineage explains the long wings and low speed loiter capability.
✈ The aircraft seats two crew in tandem, with the observer in the front seat and the pilot behind, which helps the forward crew member maintain an uninterrupted view.
✈ The YO-3 used a Continental IO-360D engine rated at 210 horsepower and drove the propeller through a reduction system to keep propeller tip noise low.
✈ Operators flew the YO-3 primarily at night in Vietnam, using optical and sensor equipment to detect movement and then relay accurate information to units on the ground.
✈ The airframe used extensive noise control measures, including insulation and attention to external fittings, because small rattles and whistles could compromise the mission.
✈ After military use, at least one aircraft supported research work, including acoustic signature measurement missions, which suited its quiet flight profile.
✈ Only a small production run was built for the United States Army, which makes surviving airframes uncommon and heavily dependent on provenance and preservation history.
Model Variants for buyers to consider when purchasing a Lockheed YO-3 Quiet Star
Buyers will see several closely related names tied to the Lockheed YO-3 Quiet Star programme. Lockheed began with QT-1 Quiet Thruster concepts, then built the QT-2 evaluation aircraft and later the QT-2PC Prize Crew configuration that carried operational sensor packages for assessment. Lockheed also used the Q-Star designation for an improved quiet demonstrator during development. The production aircraft for the United States Army was designated YO-3A, and this is the variant most buyers reference today. For buyers, these names matter because they can indicate whether an airframe started life as a development conversion or as a production YO-3A, and that can affect documentation, equipment fit, restoration complexity and long term support planning.
Lockheed YO-3 Quiet Star Specifications
Information provided here is as a guide only. This information should not be used for flight planning or other aircraft operations. Aircraft model variations, custom specifications, modifications, upgrades and age will have a considerable impact on the details listed below. Please check with the seller, manufacturer or aviation authority for the precise aircraft specifications.
Length: 8.94 m (29 ft 4 in)
Wingspan: 17.37 m (57 ft)
Height: 2.77 m (9 ft 1 in)
Max Take Off Weight (MTOW): 1,724 kg (3,800 lb)
Powerplant: 1 × Continental IO-360D, 210 hp
FAQs About the Lockheed YO-3 Quiet Star
What was the Lockheed YO-3 Quiet Star built to do?
The Lockheed YO-3 Quiet Star was built for near silent night reconnaissance and battlefield observation. It supported missions that required discreet surveillance and accurate reporting of ground activity.
How many people does a Lockheed YO-3 Quiet Star carry?
The aircraft carries two crew members in tandem. The observer sits in the front seat and the pilot sits behind.
What engine powers the Lockheed YO-3 Quiet Star?
The Lockheed YO-3 Quiet Star uses a Continental IO-360D piston engine rated at 210 horsepower. The propulsion system focuses on reduced noise output rather than high speed performance.
Why does the Lockheed YO-3 Quiet Star have such a large wingspan?
The aircraft derives its basic layout from the Schweizer SGS 2-32 sailplane. The long wings support efficient low speed flight, stable loitering and reduced power settings which all help keep noise down.
What should buyers check first when evaluating a Lockheed YO-3 Quiet Star for sale?
Start with airframe history and documentation, especially military records and any later civilian registrations. Confirm the status of the specialised propeller drive system and noise control components. Review sensor or mission equipment changes, and verify what remains installed and serviceable. Plan early for parts strategy because the fleet size is small and support depends heavily on specialist knowledge.
Get help buying a Lockheed YO-3 Quiet Star
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Find Finance for buying a Lockheed YO-3 Quiet Star
Financing a Lockheed YO-3 Quiet Star often centres on rarity, provenance and restoration scope rather than simple utilisation planning. Specialist aviation finance providers can help you structure funding around acquisition, inspection and phased maintenance work. Lenders may request evidence of parts strategy, storage arrangements and a realistic operational plan, especially if the aircraft will fly. Early conversations with a finance specialist can also help you budget for compliance items, ferry planning and ongoing support.
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Find Insurance for a Lockheed YO-3 Quiet Star
Insuring a Lockheed YO-3 Quiet Star usually requires underwriters familiar with historic and ex military aircraft. Aviation insurance brokers can arrange hull and liability cover that matches how you plan to operate, display or restore the aircraft. Insurers typically assess pilot experience, maintenance oversight and where the aircraft will live between flights. Start the insurance process early so you can align inspections, agreed value and any ferry or test flight requirements with your timeline.
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