prop size for 91 glo

[Ronplanes]

on my os 91 BB engine, the nearest prop I have is an 11x7.5 with wide blades ,they recomend a 12x6, but being that the prop has such wide blades and is almost x8 in pitch will this be OK on this engine until I get a 12x6 :rolleyes:

[Ronplanes]

i know this is a little late but the 91 requires a 13x8 or for 3D i would use a 16x4
Tony:eek: sorry I made a mistake ,the engine is a 61 OS BB