| Technical data | ||
|---|---|---|
| Type | R-3 Liberty (pre-production) | R-3M-5 (series) |
| Function | Reconnaissater | |
| Year | 1927 | 1928 |
| Crew | 2 | 2 |
| Engine | Liberty | 1M-5 |
| Power | 400hp | 400hp |
| Size (m) | ||
| Length | 9.50 | 9.50 |
| Wingspan | 13.0 | 13.0 |
| Wing area (m2) | 24.0+ 12.0 | 24.5+ 12.5 |
| Weights (kg) and Loads | ||
| Empty | 1351> | 1377 |
| Loaded | 2103 | 2128 |
| Wing Load (kg/m2) | 58.4 | 57.5 |
| Power load (kg/hp) | 5.26 | 5.32 |
| Speed (km/h) | ||
| at 0m | 206 | 194 |
| at ?m | 185 | 181 |
| Landing | 85 | |
| Roll (m [sec]) | ||
| Landing | 140 [11] | - |
| Takeoff | 200 [15] | - |
| Maneuverability | ||
| Turn time | 23sec | - |
| Ceiling (m) | ||
| Maximum | 4600 | 5000 |
| Climb (min) | ||
| 1000m | 4.8 | 3.9 |
| 2000m | 10.7 | 8.6 |
| 3000m | 19.6 | 15.0 |
| 4000m | 34.5 | 24.7 |
| 5000m | - | 45.0 |
| Armament | ||
| Guns | 2*mg | |
| Bombs | 200kg | |
R-3M-5, ANT-3 by A.N.Tupolev
Since high cost of 'Napier Lion' made it unsuitable for series aircraft, the ANT-3 was redesigned back to Liberty/M-5 engine. This task was assigned to GAZ-5 factory.
Problems with parts and materials, novelty of the aircraft stretched the process. Works started in November 1925, but first pre-series R-3 was ready only in June 1927. It was powered with the imported Liberty, while following (30?) series aircraft carried domestic built M-5 powerplants.
One of those planes was used by pilot S.A.Shestakov and mechanic D.V.Fufaev for flight Moscow - Sarapul - Omsk - Novosibirsk - Krasnoyarsk - Irkutsk - Chita - Blagoveschensk - Nanjang (Korea) - Okayama - Tokyo during August 20 - September 1 (1927). Way back took 11 days. Crew and aircraft covered ~20,000km in 153 flight hours.
Only one small batch was built, replaced in production by R-3LD;
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