Black Horse Diablo
http://www.americanpioneerhobbies.com/diablo3D.html
I have a Magnum 61 four stroke on mine.
Silly amount of power.
Weighs 3lb 9oz without fuel.
I am using HS225 for aileron, HS225MG for elevator/rudder and HS81 for throttle.
The only modification required is to run a pair of birch strigers from former at the wing to the firewall.
Thse can actually be run long enough to use as wooden mount beams.
The plane looks to be designed with wood beams that were later deleted to allow setup for electric.
I epoxied standard Sig motor mount beams from firewall to the next fuselage former to stiffen the nose,
then ran a Dave Brown glass mount for the Magnum.
Will climb out at anything over 1/3 throttle, and knife edge all day with 1.3 throttle