| Technical data | ||
|---|---|---|
| Type | SAM-5bis | SAM-5bis ambulance |
| Function | Passenger Record |
Ambulance |
| Year | 1934 | 1936 |
| Crew | 1 | |
| Engines | 1*100hp M-11 | |
| Length | 8.0m | 8.0m |
| Wingspan | 12.5m | 12.5m |
| Wing area | 24.0m2 | 24.0m2 |
| Empty weight | 580kg | 719kg |
| Loaded weight | 1070kg | 1219kg |
| Wing Load (kg/m2) | 44.5 | 51.0 |
| Power load (kg/hp) | 10.7 | 12.2 |
| Maximum Speed at 0m | 185km/h | 173km/h |
| Cruise Speed | 140km/h | 143km/h |
| Landing Speed | 70km/h | |
| Landing Roll | - | 250m 16sec |
| Takeoff Roll | - | 150m 13sec |
| Range | see text | 900km |
| Ceiling | - | 2800m |
| Climb | ||
| 1000m | - | 11.0min |
| 2000m | - | 29.0min |
| Payload | ||
| Seats | 4-5 | 1+stretcher |
SAM-5bis by A.S.Moskalev
|
Wooden variant, of the SAM-5, differed also by added wing struts, removed wheel fairings and slimmer fuselage. Front and central fuselage sections covered with plywood, tail - with fabric. Construction was very light and simple.
State trials in the NII VVS (1935) were performed by P.M.Stefanovskij. SAM-5bis was recomended for mass production as passenger and transport for commuter airlines. In the trial report was specially mentioned high weight efficiency (45.7%) of the plane, exceptional among machines with 100hp engines.
For final evaluation few long non-stop flights were performed in 1936 by pilot N.D.Fikson and flight-engineer A.S.Buzunov:
- 21 September: Voronezh, Moscow, Kharkov, Voronezh: 1600km in 12hours.
- 4 October: Moscow, Voronezh, Kharkov, Zaporozhie, Kherson, Mariupol: 1700km.
- 20-21 October: Sevastopol, Genichesk, Mariupol, Rostov, Stalingrad, Astrakhan, Stalingrad, Kazan, Gorkij, 3200km in 2505. Takeoff weight in this flight was 1500kg, including 620kg of gasoline. Takeoff Roll was just 35sec! Actually, this flight was a World record (unregistered).
- "History of aircraft construction in the USSR", Vol.1 p.554-556;
Interestingly, that all those flights were performed without co-pilot. It was not so heavy job - aircraft was very stable in flight. Rubber cords (attached to the control stick) served as an autopilot, allowing N.D.Fikson to have long breaks. Of course this does not undermine the achievement itself, and the flights of 'sport-tourist' SAM-5bis were praised highly by Soviet media.
SAM-5bis was built also in ambulance configuration with long hatch (to accommodate stretcher) on the port side. 37 such machines rolled out from Voronezh Aviacollege Workshops in 1937- 1938. They served well with the ambulance aviation (under GVF).
| Predecessors | Modifications |
|---|---|
 SAM-5 |
 SAM-5-2bis |
| References | Links |
|---|---|
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None found |
