|Type||ANT-5||I-4 Dubler||I-4 Pre- series|
|Wing area (m2)||23.8|
|Weights (kg) and Loads|
|Wing Load (kg/m2)||56.5||57.3||60.0|
|Power load (kg/hp)||3.25||3.05||2.97|
|Roll (m [sec])|
|Takeoff||70 ||70 |||
|Landing||140 ||140 |||
|Range and Endurance|
All-metal sesquiplane fighter, with small cantilever lower wing. The order for this fighter was issued in Fall 1925 by TsAGI. Comparison of all-metal vs mixed vs wooden construction fighter was the key idea. General construction of the ANT-5 was similar to this of ANT-2 and ANT-3/R-3. Prototype had to be powered by single 420/525hp Jupiter-VI, which has to be replaced by more powerful domestic M-22 on series aircraft.
In August 1928 it was followed by I-4 'Dubler' ('The Second'). Flights by M.M.Gromov, A.F.Anisimov, A.B.Yumashev and I.F.Kazlov revealed excellent performance of the aircraft, making I-4 one of the best fighters for late 20's. Series production was approved as early as December 1928.
Pre-production ('golovnoj') I-4 was ready on October 15, 1928. It was heavier than prototypes and had somewhat worser assembly quality, but still could be qualified to be among the best. Series aircraft (see I-4) had even worser quality. Corrugated skin was an obvious drawback, as well as luck of airdynamic refinement.
|Modified March 03, 1998||Back to|