Slipper clutch

[bill rob]

Wondered if this idea would work with bigger helis,,I cant think of any reason why not,,,can you?
If I mention long grass anywhere near my 450 the gears strip.

[Grumpy]

To protect which gears?

I'd be concerned that it's just another potential failure point. A clutch designed to slip could very easily slip when you don't want it so slip. If might be a very fine line between being 'slippy' enough to protect all the gears yet being strong enough to pass all the available motor torque without stipping.

I cant recall the last time I stripped a gear, maybe you should avoid taking off or landing in long grass?

[bill rob]

To protect which gears?

I'd be concerned that it's just another potential failure point. A clutch designed to slip could very easily slip when you don't want it so slip. If might be a very fine line between being 'slippy' enough to protect all the gears yet being strong enough to pass all the available motor torque without stipping.

I cant recall the last time I stripped a gear, maybe you should avoid taking off or landing in long grass?

Its not just grass,,Ive touched down tail first a few times and stripped gears,last couple of years I`ve been putting it down very slightly nose down which solved it.I thought it might work on bigger helis but as you say it would be a nightmare getting it to slip consistently at the same torque load.
I suppose it would have been done by this time if it was feasible.

[Grumpy]

My 600 Pro used to be bad for catching the tail blades in grass. I fixed it by putting the slightly longer 700e landing gear on the back only which gave it a slight tail up stance, nothing you would really notice but enough to keep the tail out of the dirt.