Dear JET modellers,
I have a problem with my older BEHOTEC j66HP engine.
The engine runs great, the only problem I have is that about 2-3 minutes into the flight the engine cuts itself down to ~66000rpm thus reducing thrust, which is bad felling from a safety point of view.
After landing the engine does not stall but runs at ~66000rpm even with the throttle fully open.
After stopping and restarting the engine, the engine normally ramps up to ~121000 rpm and the effect repeats itself after 2-3 minutes.
Please any idea where the problem could be.
- no bad flow in line is observed
- the battery is always fully charged
- there are no visible vibrations, no defect is visible on the floor when the engine is started
- engine start like a dream - gas start
BR Marko Frank
I have a problem with my older BEHOTEC j66HP engine.
The engine runs great, the only problem I have is that about 2-3 minutes into the flight the engine cuts itself down to ~66000rpm thus reducing thrust, which is bad felling from a safety point of view.
After landing the engine does not stall but runs at ~66000rpm even with the throttle fully open.
After stopping and restarting the engine, the engine normally ramps up to ~121000 rpm and the effect repeats itself after 2-3 minutes.
Please any idea where the problem could be.
- no bad flow in line is observed
- the battery is always fully charged
- there are no visible vibrations, no defect is visible on the floor when the engine is started
- engine start like a dream - gas start
BR Marko Frank