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The Tupolev ANT-21 was a Soviet twin-engined four-seat heavy fighter which also had the designation MI-3 (Mnogomestnyi Istebitel - Multi seat fighter). It was not accepted for production only two prototypes being built.

* the Tupolev ANT-21 was rejected by the Soviet Air Force because it was not armed with recoilless rifles? More interesting facts on 1
The Tupolev ANT-21 was a Soviet twin-engined four-seat heavy fighter, which also had the designation MI-3 (Mnogomestnyi Istebitel - Multi seat fighter).2
The Tupolev ANT-21 was a Soviet twin-engined four-seat heavy fighter, which also had the designation MI-3 (Mnogomestnyi Istebitel - Multi seat fighter). It was not accepted for production, only two prototypes being built.3
Tupolev ANT-21 (MI3) de 1933 y del caza armado con cañones Tupolev ANT-29 (DIP), el primer prototipo del Tupolev ANT-40 (SB) (las letras SB correspondían a bombardero rápido) realizó su primer vuelo el 7 4

Made by Tupolev.

Tupolev ANT-21bis (MI-3D) Tupolev ANT-21bis (MI-3D) 1934 Retaining the wings, engines and undercarriage of the ANT-21, the 5
Tupolev ANT-21bis (MI-3D) (Russia) (1934) WW2 Aircraft 1655 x 1198 Front Top 6
Tupolev ANT-21bis (MI-3D) 2g 116. Tupolev ANT-27 / MDR-4, MTB-1 1g 117.7
Wing Area Sqm
59
Eng 1 Type
liquid-cooled V12 engine
Crew
3
Number Built
2
Max Speed Note
300000.0
Empty Weight Kg
4058
Gross Weight Kg
5463
Span M
21
Manufacturer
First Flight
1933
Eng 1 Name
Mikulin AM-34
Max Speed Kmh
350
Origin
Soviet Union
National Origin
Soviet Union
Guns
60.0
Prime Units
met
Ceiling M
8300
Eng 1 Hp
820
Eng 1 Number
2
Length M
12
Category

5 tips to help with your fear of flying

This article provides individuals with tools to overcome or at least manage a fear of flying. Flying can be an enjoyable experience if anxiety is not an issue.