Neiva BN-1
Neiva · Brazil · first flew 1955 · glider
The Neiva BN-1 was a high performance single-seat sailplane designed in Brazil in the 1950s. It had national records, competition success, and went into production for club use.
Recognition (WEFT)
| W — Wings | High-mounted, straight |
|---|---|
| E — Engines | 1 × none, embedded-mounted |
| F — Fuselage | Slender rear fuselage carrying the tailplane just above it on a slight step |
| T — Tail | Conventional |
WEFT is AircraftIQ's four-point recognition method — how it works.
Spot it by:
- High mounted cantilever wing with an aspect ratio of 19
- Cockpit with a moulded Plexiglas canopy just ahead of the wing leading edge
- Slender rear fuselage carrying the tailplane just above it on a slight step
Look for a wooden single-seater with a high cantilever wing, a plywood leading edge, a retractable monowheel and a skid, and a broad curved-edge rudder.
Specifications
- The Neiva BN-1 has a length of 6.9 m (23 ft).
- It has a wingspan of 16 m (52 ft).
- Typical crew: 1.
Figures are for the representative variant described above; marks differ. See how AircraftIQ sources figures.
History
It was designed by José de Carlos de Barros Neiva and first flew in 1955. It was a conventionally laid out wooden glider built around a single I-section spar.
Variants
Three BN-1s were built.
Where you'll see it
The BN-1 was produced for the Brazilian government-run national gliding clubs. At the third National Soaring competition four BN-1s took first, second, third and fifth places against twelve European and American aircraft, and the type set three Brazilian records, including a 332 km goal flight.
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