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Briegleb BG-6

Specifications

Performance

Other

The BG-6 was introduced in 1939 and produced in both complete and kit form. It has no devices for glidepath control. A few factory-built ships were used as training gliders in World Was II.


 

Briegleb BG-7

Specifications

Performance

Other

The BG-7 was developed in 1940 by adding longer, tapered wings to the BG-6. Most have spoilers fitted, which the BG-6 lacked. Modifications were common, frequently in the cockpit area. The added span created some directional instabillity, so many BG-7’s had the rear fuselage lengthened or area added to the vertical fin.


 

Briegleb BG-12 series

Specifications-BG-12BD

 

Performance

Other

The BG-12 series has established an enviable record as a homebuilt sailplane with around 350 kits or sets of plans having been delivered to customers. The prototype flew in 1956 using a modified BG-6 fuselage. The –12 A production version has a 15% thick 3-piece wing. A lighter 2-piece 18% thick wing was developed in 1963 as the –12B. Both have flaps for glidepath control. One flapless –12C model was built with a 2 piece 15-meter span wing with air brakes to meer FAI/OSTIV Standard Class requirements. The –12BD model eliminates three degrees of wing twist, accomplishing the same effet by an aileron linkage applicable only in the low-speed range. The –12/16, which first flew in 1968, uses a new lower-drag fuselage topped off with a swept-forward tail. The horizontal tail surfaces are of the stabilator type including two anti-servo tabs to produce good stick ‘feel’. L/D max. is 36. A number of modifications were incorporated by individual kitbuilders. One example is the Niedrauer NG-1 which has a BG-12/16 fuselage with a –12B tail and cockpit depth reduced by 9 in /23 cm to 34 in /86 cm, and lengthened to accommodate the pilot in a semi-reclining position. Specifications are for the BG-12BD.


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