I have a Super Tigre 60 powered Urtnowski Tsunami and after 18 years of sitting there I would like to fly it again.  Can't remember what fuel or prop I was using.
 It was run on 10% nitro and a wood prop, that's all I remember, and it's a Randy Smith ST 60 engine, Tongue muffler with less than 20 flights on it.  Would appreciate hearing suggestions on prop diameter, pitch, and oil percentages. I'm sure the prop would be a rev up 13x5 or 6, the fuel 22% half castor half synthetic???
 Kevin King.

Thanks Bill!

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 ? .

http://library.modelaviation.com/ma/1996/10/tsunami

Top of right column, for prop .