Check the listing for details. 1/9 Scale Plans For Lockheed YO-3A Quiet Star Plans, and Instructions 74ws. Condition: Brand New. Listed at 15.99 USD. 1/9 Scale Plans For Lockheed YO-3A Quiet Star Plans, Templates and Instructions You are bidding on a new set of plans for Lockheed 1/8 YO-3A Quiet Star. It includes the Plans and templates/patterns for cutting the parts for this great flying model. Building instructions are also included.. Construction is conventional balsa ans ply and shows retract installation and motor options. These plans are in perfect condition. All of my items come from a totally smoke free environment. Other plans are for sale too. I'll be listing them as I pull them out. PLEASE NOTE:Economy shipping = folded plans shipped in an envelope. Expedited shipping = rolled plans shipped in a tube. (Recommended) Shipping options are located at the bottom of the payment page when you check out. Select “economy shipping” for folded plans shipped in an envelope. Select “expedited shipping” for rolled plans shipped in a tube. The Lockheed YO-3A "Quiet Star" was an American single-engined, propeller-driven monoplane that was developed for battlefield observation during the Vietnam war. It was designed to be as quiet as possible, and was intended to observe troop movements in near-silence during hours of darkness. The YO-3A was designed to a US Army specification of 1968, which called for an observation aircraft that would be acoustically undetectable from the ground when flying at an altitude of 1,200 feet at night. Lockheed was approached to produce such a design. In 1966 the company built a prototype QT1 "Quiet Thrust" using a modified Schweizer SGS 2-32 glider. This was abandoned for two prototypes of a two-seat version called the QT-2 PRIZE CREW. The QT had a silenced engine and a propeller operating at subsonic tip speed for quiet operation. Normal 0 false false false MicrosoftInternetExplorer4