The Briegleb BG-12 is a single-seat sailplane of wooden construction developed in the United States in the 1950s. It was marketed for
homebuilding in plans or kit form, with over 350 sets of plans selling by 1978. The BG-12 is a conventional sailplane design, with a high cantilever wing and a conventional empennage. Later models featured a highly revised fuselage, a swept-forward tail fin, and an all flying tailplane with balance tabs.
Variants
;BG-12
:prototype derived from
BG-6
;BG-12A
:Initial market version
;BG-12B
:1963 version with revised wing
;BG-12BD
:BG-12B with revised wing and ailerons
;BG-12C
:Flapless 15 metre wing to meet
FAI Standard Class requirements, one built.
;BG-12/16
:Revised, lower-drag fuselage and tail fin, all flying tailplane
;Jobagy Bagyjo
:BG-12 fuselage and empennage with
Cherokee II Wings. Built in 1962 by John Jobagy, currently on display at the
Aero Space Museum of Calgary
;Niedrauer NG-1
:BG-12/16 fuselage shortened 9 inches and lengthened to accommodate reclined pilot position. BG-12B Horizontal tail.
Airfoil
An airfoil (American English) or aerofoil (British English) is a streamlined body that is capable of generating significantly more Lift (force), lift than Drag (physics), drag. Wings, sails and propeller blades are examples of airfoils. Foil (fl ...
changed to a NACA 4400 series. L/D of 35:1 at .
Aircraft on display
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US Southwest Soaring Museum
The US Southwest Soaring Museum is an aviation museum, located at 918 E US Route 66, in Moriarty, New Mexico, United States that focuses on the history of gliding in the western United States. The museum is an affiliate member of the Soaring Soci ...
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Aero Space Museum of Calgary
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National Soaring Museum
The National Soaring Museum (NSM) is an aviation museum whose stated aim is to preserve the history of motorless flight. It is located in Big Flats Town, New York, on top of Harris Hill near Elmira.
The NSM is the Soaring Society of America's ...
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Mid-Atlantic Air Museum
The Mid-Atlantic Air Museum (MAAM) is an aviation museum and aircraft restoration facility located at Reading Regional Airport in Reading, Pennsylvania. The museum, founded by Russ Strine, the current President, collects and actively restores h ...
Specifications (BG 12BD)
See also
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Briegleb El Mirage Airfield
References
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sailplanedirectory.com* plans sheet 12046
{{Briegleb aircraft
1950s United States sailplanes
Glider aircraft
Homebuilt aircraft
BG-12
Aircraft first flown in 1956