That has to be one of your best flying videos, thanks for posting them I totally enjoyed them.
Mike, I think the 70 fs will be to heavy for the profile Kellett in its standard form, I would personnely scale it up to about 60" span...My DAG-GT is 75" and flies well on a 91 4 stroke.
You would love the way the Kellett flies...did I ever mention it is my favourite tractor gyro?
..not everones cup of tea being profile though.
So Dave how about a profile Cierva to complement the Kellett??