ORIGINAL: camdyson
I'm new to petrol (oh ok, "gas") engines - just ordered my first, a Zenoah G26, for my Eindekker.
I've had mixed advice re soft-mounting it: some insist it will shake my plane to bits hard-mounted, others say hard-mounted is better if prop's balanced ok. Also, the G26 in particular seems to crop up as a vibration-prone engine in other forums.
Any advice/comments would be appreciated. I don't want to move it far forward, so am currently leaning towards rubber washers.
Thanks,
Cam
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The problem with soft mounting is that the engine will shake all the screws, nuts and bolts off, in some instances.
The G26 isn't a "shaker". It just shakes a little more than the G23. When you produce more power with essentially the same size engine, the power pulses are stronger, but not a huge amount stronger.
I like my carb needles to stay where I put them. It is easier to compensate for vibration in the airframe construction than to continually be chasing carb settings around the planet.
The competition folks in pattern must soft mount because of noise regulations. You probably do not have that to contend with. That is the only reason that I would ever soft mount an engine. Soft mounts increase weight and contribute new failure modes.