Scott,

I am just finishing my Smith, I am covering it in a "Superman" scheme with the red S and everything

As far as engines go, I put a YS63 Four Stroke in it mounted upside down. I don't know of any others that would run well this way but a Surp' might. The YS pressurized system just seems to run well at any angle. I only hade to make a small cutout through the lower air intake vent on the stock Smith ABS cowell to accomodate the engine. I rigged a "pitts" style muffler in there sideways and the exhaust comes out almost right where it should according to the full size machine.

MODS:

I too, added dual ailerons on the main wing.

I also doweled the wing bolt lugs to the side of the fuse with hardwood dowells, I just didn't like a surface glue only there.

I also fiberglassed the lading gear strips and Z bracket stips acrossed both sides of the wire rather than just using epoxy to fill the gap. It allowed me to make it much stonger and easier to finish.

I used the Du-Bro pinned hinges rather than the Sig ones it comes with.

I beefed up the areas where the hinges go through on the vertical stab and rudder. I also made the rudder about 3/4 inch longer than the plans indicate.

I did add shear webbing to the main wings. And I added to 1/4 inch hardwood spares one in front of and one behind the servo bucket area on the bottom wing, they go out to the end of the full wing sheeting.

I made a fuel tank saddle for a Hayes 10 oz. tank so I don' t have to pad it so much in there.

I used a scale tail wheel steering assembly instead of the supplied one.

I am very excited about putting this little guy in the air. I think I will be able to transport it without taking it apart, cool. It should climb very well with that engine and an 11x8 prop.

Good Luck!
Adam