O.K. thats a picture .
Was a pile of ' 90 ' C F 4 blade etc , ex Urtnowski , on classifieds , a while back .
THINNED & whittled , and tarted up , they spin with less load . The top Flight etc lumber .
Useing a virneer to run along length , if youve scrawled some referance lines spanwise to chew back to , use a bastard file for reshaping .
If you repeatadly swap ends Ea 4 or 6 strokes , keeping the same angle & pressure , they cut in even .
The beech ' rainbow ' props are soft , narrowed one ( as they seem to get awfull tourgue swing in corners )
Laying out another 13 inch to narrow semi Folkerts scale like , to try on a FSR 45 in the Folkerts . Semi symetrical lowering the pitch .
Theyve used 4 & 5 pitch on L Js , As youre motor frees off , itll be happier on more prop . But dont overload/ overheat it .
hence the ' word or two ' on THINNING .
Youll get massive torrque reaction on a heavy / bulky prop , gotta Rabe Rudder hooked up ? .