ORIGINAL: riadh
I need to get this right too please! Looks like the nose ring is holding the non moving part of the engine just before the drive washer .Wouldn’t that though put a lot of stress on the engine body? I used the same Dubro soft mount for an OS70 4s on a trainer last month. Well the trainer did go down in an uncontrollable fashion and crashed .I believed at the time that that was due to elevator’s clevise/ horn clip got undone. In that flight I had used the Futaba 7c 2.4 GHz system, the soft mount and the new trainer all for the first time. It couldn’t have been due to the vibrating soft mount could it?
The problem with the mount was when the plane was on the ground. A sudden application of power caused the plane to do donuts to the right because the engine thrust line shifted to right offset. I didn't notice any issues in the air. I highly recommend the soft mounts for a trainer. They save a lot of damage to the motors when the planes crash.
Don