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
Competition classes in gliding, as in other sports, mainly exist to ensure fairness in competition. However the classes have not been targeted at fostering technological development as in other sports. Instead classes have arisen because of:
* t ...
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
The Hall Cherokee II is an American high-wing, single seat glider that was designed by Stan Hall and introduced in 1956 as plans for amateur construction.Said, Bob: ''1983 Sailplane Directory, Soaring Magazine'', pages 8-9. Soaring Society of ...
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 the cross-sectional shape of an object whose motion through a gas is capable of generating significant lift, such as a wing, a sail, or the blades of propeller, rotor, or turbine.
...
changed to a NACA 4400 series. L/D of 35:1 at .
Aircraft on display
*
US Southwest Soaring Museum
*
Aero Space Museum of Calgary
*
National Soaring Museum
Specifications (BG 12BD)
See also
*
Briegleb El Mirage Airfield
References
*
sailplanedirectory.com* plans sheet 12046
{{Briegleb aircraft
1950s United States sailplanes
Glider aircraft
Homebuilt aircraft
BG-12
Dimethyl fumarate (DMF) is the methyl ester of fumaric acid and is named after the earth smoke plant ('' Fumaria officinalis''). Dimethyl fumarate combined with three other fumaric acid esters (FAEs) is solely licensed in Germany as an oral t ...
Aircraft first flown in 1956