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| Grigorovich I-1 | |
|---|---|
| Role | Fighter Type of aircraft |
| National origin | Soviet Union |
| Manufacturer | Grigorovich Design Bureau |
| Designer | Dmitry Pavlovich Grigorovich |
| First flight | January 1924 |
| Status | Prototype |
| Number built | 1 |
| Variants | Grigorovich I-2 |
TheGrigorovich I-1 was aSovietfighter prototype of the 1920s. It was the first land-based fighter developed by theGrigorovich Design Bureau, who had previously concentrated on water-borne aircraft such as theGrigorovich M-5 of 1914.
Initially, design was started on a single-seat fighter byDmitry Pavlovich Grigorovich, to compete with thePolikarpov I-1 biplane. The finished aircraft, finalised in 1924 and produced at Factory No. 1, atKhodinka, nearMoscow, was a single-seat, single-baybiplane of wooden construction, with the forward portion of the fuselage being covered inplywood and the rear having fabric skinning. In development, a major problem was that of engine cooling - various methods were tested including radiators attached to the undercarriage legs, but in the end a radiator suspended beneath the engine was used.
After an initial flight in January 1924, testing took place in the spring of that year. The I-1 was found to have adequate speed for its purpose but its construction and therefore its flight were unstable, and itsclimb rate was found to be insufficient with repeatedstalls. Therefore, the prototype was abandoned, and Grigorovich refined the design into theGrigorovich I-2 which later entered service in theSoviet Air Force.
Data from The Complete Book of Fighters[1]
General characteristics
Performance
Armament
Related development
Aircraft of comparable role, configuration, and era