Congratulations on the good report on the Alpha 60,mine flew just great and no trimming so far but the wind.........I'm thinking the wind he was flying in might be the problem with the prop,it was like hurricane weather,i've gotten another prop,11X4 and gonna check it out as soon as the wind is low.I couldn't wait so i started it on my lawn this morning just so the ol (wife) could hear it,or was it me cuz i couldn't wait ?,and no i didnt have the wing on so no chance of it flying.
Then we went to town for some spare parts,just in case.