| Technical data | |
|---|---|
| Type | HD 37 |
| Function | fighter |
| Year |
1928 1932 |
| Crew | 1 |
| Engines |
1*750hp BMW VI 7,3Z 1*500/715hp M-17F |
| Length | 6.95m |
| Wing Span | 10.00m |
| Wing Area | 26.71m2 |
| Empty Weight | 1296kg |
| Maximum Weight | 1729kg |
| Wing Load (kg/m2) | 65 |
| Power Load | 2.3 |
| Speed (0m) | 290km/h |
| Speed (3000m) | 277km/h |
| Turn time | 12sec |
| Range | 700km |
| Ceiling | 7200m |
| Climb | |
| 1000m | 2.0min |
| 2000m | 4.0min |
| 3000m | 6.6min |
| 5000m | 11.4min |
| Armament | |
| Armament | 2*mg7.7mm |
I-7/HD-37, Heinkel/TsKB
|
Heinkel HD 37, single-seat biplane fighter. The HD 37 was not accepted by the clandestine German air force, but the USSR bought a small number (3?) and a licence. The idea was to replace aging I-5 until more advanced domestic designs will be ready.
134 were built in the USSR as the I-7 since 1932, with some technological improvements. Despite expectations, aircraft failed to demonstrate substantial advantages over the I-5. Plus it came 2 years late. Once the I-15 became available in 1934, I-7 production was cancelled.
The BMW VI engine was produced in the USSR as the M-17.
Sources
- "History of aircraft construction in the USSR", Vol.1 p.438-439;
- I-7
- I-7, Heinkel
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