Nice find Andrew, a plane of the same name!

If one does a search for the "Stunt Runt" you might also find a plane by Joy Products (now Balsa USA). The Joy Products offering is a really nice looking biplane also not to be confused with the control line model designed by Duke Fox for the Fox 07 compact stunt engine.

I have started a thread in the control line forum asking for information there and as yet no replies.
http://www.rcuniverse.com/forum/m_9405813/tm.htm
I started the Stunt Runt thread a couple of days beore I started this thread.

You can see a drawing of the Fox Stunt Runt in post 6.

Quote by MJD:
"That 8x2.5 prop would be popular with the .10 to .15 3D'ers and scale biplane builders. Well, assuming the design were updated a bit."

Which brings to mind locating props suitable for the Fox 07. According to the Peter Chinn report just about any prop apretty wide variety up to that 8 X 2.5 prop were good choices in the BHP department.

Robert