| RBVZ-6 | |
|---|---|
| |
| RBVZ-6 engine fitted to Sikorsky Ilya Muromets No.167 | |
| Type | Water-cooled inline-six aero engine |
| National origin | Russian Empire |
| Manufacturer | Russo-Baltic Wagon Factory (RBVZ) |
| First run | 1915 |
| Major applications | Sikorsky Ilya Muromets |
| Number built | 70 |
| Developed from | Benz Bz.III |
The RBVZ-6 (Russian: РБВЗ-6) was a WW1 era inline-six aircraft engine first built by the Russo-Baltic Wagon Factory (RBVZ) at their workshop in Riga with production later moving to Petrograd and then to Moscow.
The engine was based on the Benz Bz.III with modifications to suit the materials and manufacturing techniques available in the Russian Empire. The changes resulted in the RBVZ-6 being heavier and less powerful than the German original.
RBVZ-6 engines powered several variants of the Sikorsky Ilya Muromets aircraft where they proved highly reliable. RBVZ-6 engines remained in service with the Ilya Muromets fleet until 1922 by which time the model had been redesignated as the M-1 under the Soviet's aircraft engine numbering system.