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  • ROTO  125 FSi
  • ROTO  125 FSi
  • ROTO  125 FSi
  • ROTO  125 FSi
  • ROTO  125 FSi
  • ROTO  125 FSi
  • ROTO  125 FSi
  • ROTO  125 FSi

ROTO 125 FSi

Excluding Tax |
Only 5 left in stock

The price of the product is without VAT
The Roto 125 FSi is a new engine for inline engine aircraft. The design of the engine was aimed at easy installation in an aircraft with a narrow fuselage. Engine performance is comparable to 125cc four-stroke engines, low idle and easy starting is a given.

The engine has been developed with all the experience provided from the Roto - UAV development group and meets the highest possible standards of production quality and output testing.

The Roto 125 FSi is a twin cylinder, four stroke, air cooled inline engine with a single carburettor for ease of user setup. The engine is completely built on roller bearings and is completely maintenance free. Engine lubrication is provided by a system adopted from Roto - UAV and no relubrication is required. The valves and their gears are developed so that their inspection is not necessary before 40 hours of operation.


  • Engine displacement 125 ccm
    Power 7,5 kW
    Max static engine thrust 21 kg
    Bore 2x48 mm
    Engine weight 4300 g
    Engine & ignition weight 4580 g
    Arrangement of the engine inline two-cylinder
    Cooling air-cooled
    Lubrication petrol 95 oct. + 2% oil
    RPM 1100 – 6000

    Fuel system


    These are the expected values

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