Tupolev ANT-7 / R-6
1931
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Tupolev ANT-7 / R-6

The Tupolev ANT-7 prototype was a scaled-down version of the ANT-4. First flown on 11 September 1929, it was powered by two 544kW BMW VI engines. Production began in summer 1930 as the multi-purpose R-6 for the air force, with a total of 435 built by June 1934. The KR-6 version was a long-range reconnaissance aircraft with increased fuel capacity and no bombload, and the MR-6 was a naval floatplane variant. Many late production aircraft were delivered for civil use under the designation PS-7 or P-6; modifications were minimal, including a strengthened freight floor and elimination of gunners' positions. The MP-6 was the civil floatplane version, and many P-/MP-6s and PS-7s had enclosed cockpits for Arctic use. The specially built R-6L was a one-off 'limousine' version incorporating a nine-passenger cabin.

3-View 
Tupolev ANT-7 / R-6A three-view drawing (592 x 739)


Specification 
 MODELR-6
 CREW3-5
 ENGINE2 x M-17,
 WEIGHTS
    Take-off weight6470 kg14264 lb
    Empty weight3855 kg8499 lb
 DIMENSIONS
    Wingspan23.2 m76 ft 1 in
    Length15.1 m50 ft 6 in
    Height6.1 m20 ft 0 in
    Wing area80.0 m2861.11 sq ft
 PERFORMANCE
    Max. speed230 km/h143 mph
    Ceiling4900 m16100 ft
    Range800 km497 miles
 ARMAMENT3 x 7.62mm machine-guns, 500kg of bombs

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