I have read all these threads & have come to the conclusion that there are a lot of people smarter than me! Me, I would have dumbed my way into using a 4 pitch prop with a 13" or 14" diameter & give it a go. That will keep the revs up with a good bit of pull & slower speed. Just don`t let it fall out of the sky!>>>>>
>>>>>>>>>>big max 1935>>>>>>>>>>>>>>>>>>>