|Jan 02, 2012, 06:56 PM|
oX FS/70 Prop size
Can anyone share with me the best prop results you have had on an OS FS/70 Surpass II ? The book gives several but they all appear to be pretty small to me. I have the motor on a Great Planes Revolver 46-55 size. 59in. wingspan and weight of 7lbs.
Appreciate any help .
|Jan 02, 2012, 07:04 PM|
USA, IL, Benton
Joined Jan 2005
Trader Rating: 44
I like 13x6-13x7 or maybe 12x8 APC . I use a tach and do not like to rev more than 10,000 rpm on the ground. APC's will normally give you the best performance but they are not very pretty. IMHO
I let the tach and type of plane/flying decide what prop. Large diameter low pitch for larger slower planes and smaller higher pitch for slicker planes like the Revolver
|Jan 02, 2012, 09:51 PM|
United States, NC, Faison
Joined Jan 2011
Trader Rating: 29
I had an os 70 FS on a Venus II .40 size. I put an APC 11-11 and it was fast and had plenty of RPM to spare. 12-6 would be a good sport fly prop but on that revolver I would go for speed! 11-11 or 11-10 would be your best bet.
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