So two votes for flappy paddle props
Thanks for the info Hans and twoturn!
It seems that most rigid carbon props are more or less copies of APC (rasa, PT model), but that copying the unloaded shape does not mean the performance and efficiency will be the same as the APC has loaded in the air.
What about the new MPI props that have been mentioned on this forum. Are they also copies of APC? Airtech is another prop that seems APCish, but I don’t know anyone who has tested it.
David