Senkow BP-1

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ZAGI / Senkow BP-1
ZAGI / Senkow BP-1
Type: Glider
Design country:

Soviet Union 1923Soviet Union Soviet Union

Manufacturer:

ZAGI

First flight:

1934

Number of pieces:

1

Mitchell U2, 2001

The Senkow BP-1 or ZAGI BP-1 ( Russian Сеньков БП-1 / ЦАГИ БП-1 ) is one of the numerous flying wing designs in the Soviet Union in the 1930s. The machine was developed in 1934 by A. A. Senkow at the Central Aerohydrodynamic Institute (ZAGI) . The ZAGI is the Soviet counterpart to the US NACA and the German AVA .

While most contemporary Delta designs, especially the Lippisch Deltas , suffered from the problems caused by an internal elevator and conventional ailerons, these did not occur with the BP-1. The BP-1 was controlled via elevons and end disk rudders designed as Junkers double wings . The construction should have had very good flight characteristics and performance, which seems credible due to the advanced design. In addition to the good performance as a glider, the BP-1 is also said to have useful aerobatic properties. The competition number 27 was painted on for the gliding competitions in the Crimea , while the ZAGI BP-2, developed by Belyayev at the same time, featured a 28.

The Lachmann / Handley-Page - Vane was not well known at this time, although it has been used in some British types. At the time, the design with recessed, external Junkers rudders was probably the best way of eliminating the problems typical of flying wings. Most of the tailless Soviet designs of the time, such as the Kalinin K-12 , the BOK-5 or the BITsch-8, used winged flaps based on the Junkers principle.

The modern, ultralight Mitchell U2 construction uses practically the same wing design as the ZAGI BP-1 in the 1930s. The drawing of the U2, built in 2001 by Wolfgang Uhl in Germany, clearly shows the similarity

Technical specifications

Parameter Data
crew 1
length 3.4 m
span 12 m
height
Wing area 18 m²
Wing extension 8th
Wing profile NACA M-6
Glide ratio 17.7
Slightest sinking 0.94 m / s
Empty mass 184 kg

literature

  • Rudolf Storck among others: Flying Wings . The historical development of the world's tailless and flying wing aircraft. Bernard and Graefe, Bonn 2003, ISBN 3-7637-6242-6 .

Web links