BJ-1 Dyna Mite / DSK Duster
Ben Jansson · United States · first flew 1966 · glider
The BJ-1 Dyna Mite, or California Sailplanes Duster, was a sailplane designed by Ben Jansson in the United States in the 1960s for homebuilding.
Recognition (WEFT)
| W — Wings | High-mounted, straight |
|---|---|
| E — Engines | 1 × none, embedded-mounted |
| F — Fuselage | 6 m fuselage |
| T — Tail | Conventional |
WEFT is AircraftIQ's four-point recognition method — how it works.
Spot it by:
- Shoulder-wing sailplane with conventional empennage
- No component longer than 5.5 m, so it fits a domestic garage
- Wood construction with a fibreglass nosecone
No component exceeds 5.5 m in length, so the glider can be built and stored in a domestic garage.
Specifications
- The BJ-1 Dyna Mite / DSK Duster has a length of 6 m (20 ft).
- It has a wingspan of 13 m (43 ft).
- Its maximum speed is 206 km/h (128 mph).
- Typical crew: 1.
Figures are for the representative variant described above; marks differ. See how AircraftIQ sources figures.
History
The BJ-1 Dyna Mite first flew in 1966, from rough building sketches that Jansson made in 1963. It was a conventional shoulder-wing design, built of wood apart from a few fibreglass mouldings such as the nosecone.
Variants
The BJ-1B Duster, with plans released in 1971, had a lighter weight, an extended wingspan and a lower canopy that required the pilot to fly semi-reclined.
Where you'll see it
By 1977 more than 200 sets of plans had been sold, and in total 371 sets were sold. DSK (Duster Sailplane Kits) sold about 169 kits.
Related aircraft
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