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The Neiva BN-1 was a high performance single seat sailplane designed in Brazil in the 1950s. It had national record and competition success and went into production for club use.

The Neiva BN-1 is a Brazilian single-seat high-performance sailplane.1

Made by NeivaHuilaRio de Janeiro.

The Neiva BN-1 was a high performance single seat sailplane designed in Brazil in the 1950s.2
Wing Area Sqm
13
Designer
José de Carlos de Barros Neiva.
Sink Rate Ms
1
Wing Area Note
gross
Aspect Ratio
19
Crew
1
Glide Ratio
best
1:31 at 76 km-h
Airfoil
NACA 4415 at root
NACA 4412 at mid-span and NACA 2R1 12 at tip
Number Built
at least 4
Max Speed Note
maximum safe
Empty Weight Kg
170
Gross Weight Kg
250
Span M
16
Manufacturer
Neiva
Huila
Rio de Janeiro
First Flight
c.1955
Max Speed Kmh
225
Origin
Brazil
National Origin
Brazil
Height M
1
Prime Units
met
Stall Speed Kmh
50
Sink Rate Note
minimum
at 60 km-h
Length M
7
Category
Brazilian aircraft 1950-1959
Glider aircraft

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