Comment on "Short Clip of Rizzy's Navajo HKS trike test flight"
hi Rizzy, very nice engines song she had. More better as 2takt... :)Comment on "Efficiency: Perfect pitch UAVs and airboats lead to new propellers (at least some good from UAVs / Drones)"
...restricted for the smaller hp engines used on UL. While it is...especially true for lower hp engines. I have seen some theor...could well be that higher hp engines maintain good efficiency up t...n point is that with lower hp engines maximizing prop efficiency is...