Holy cr@p!


I found an image of some 3-view drawings.

I was able to scale the WS using the 80" known value & the drawing was 28:1. (as it appeared on my screen)

Measuring the cowl where the pots would be located I came up W/about 12 1/4" maximum cowl diameter & about 9 1/2" opening in the front.

That means a Saito 450R3 would esily fit as would an Evolution E9-99 that is 10.2" in diameter.

http://www.evolutionengines.com/Prod...ProdID=EVOE999

I wouldn't hesitate to use the 450R3 W/a dummy engine for appearance & as a baffle for cooling.

A "scale" prop would be 31". Since it would not be practical to swing that big of a prop on either engine, a 24 X 12 would load the 450R3 down static, but it would still make about 30# of thrust, unloading in the air quite a bit on this sleek airframe. It could probably get up to 7000 in the air & hit over 80 MPH. That's a bit over "scale" for the 352 MPH full sized airspeed.

The 450R3 only gives up .5HP spec'ed but the under square 9-99 Evo has a longer stroke & would lug down better to swing a BIGGER prop.

The 9-99 also wieghs 7.7#, that's over 1 1/2# more than the 450R3.

Moving all the batteries & servos a far back as possible would probably balance out the CG W/O adding ballast so the plane would probably come in about 21# W/the 450R3 & 23ish W/the 9-99.

Either combo should have enough thrust to move it along pretty fast.