Originally Posted by Skylane II
The 2-blade 16 incher is the prop that was driven by the OS 91, and it seems to be a lawn mower , that it sounds lke a bit!
It looks pretty much to match scale appearence, but several test run-ups will show the best set-up! BTW I was heavily inspired by your and crowe04 postings in this thread ..
Thanks for the comments. Yes , know what you mean about a lawn mower; all right. After many many flight I wondered why my aircraft was getting kind of sluggish and required a higher power setting and when I got home that day discovered a large buildup of grass crap on the backside of the APC 16x8E that had built up over time . Efficiency had dropped big time. Cleaned it off and felt like I had added another half cell.
The preferred prop length would be a 15 incher. I may replace the wheels up one inch more in diameter but will see this winter as I want to do some work on the landing gear.