Originally Posted by evltoy
I would expect trimming would be needed. More the fact that taking off you would need to give a little neg elevator for it to hover straight up as taking off normal would now have the heli pushing forward until all skid are off the ground.
Same would go for landing... the Rear of the skids would hit the ground first then push forward for full landing. if you were to land flat on the skids you would need to be moving forward (nose down a little).
2 take offs, And 2 landings on/off the asphalt in my driveway and all was just fine. I did not notice a diff. That 20mm is just no wher near enough for main blades to scrape or to realy even add any neg. elevator. Once off the ground its same ol same flight.