I have spent the day doing useful things trailer almost sorted etc. I started the lift engine for the first time with the skirt on, and it very quickly lifted the front up and the back was just about dragging. at about 5000rpm it was hovering very nicely, aslong as there's weight on the front.

However idling it still hovers! Takes 2 people to hold it down, otherwise the front stays up!

How do i fix this!?!? I can drop the idle speed a bit, but how low can it go safely (ie reliably pick up afterwards). Not going to put extra weight in (although with full tanks it may help a bit).

It's ~20hp, so what if I took out some blades and pitched up the other's would this actually help? when moving quickly it would lose lift though.