Rich,

I also had the Sig Colt and the Midwest Cardinal, and no, they are not the same wing (though they do look rather similar). The Cardinal is a slightly larger airplane. Both were lots of fun.

My Sig Colt was powered at first with an Enya .09R/C IV, and that was a fine little motor which flew the Colt just great. It was, however, just a bit underpowered, so I swapped it out with my OS15FP. More than enough power! The OS10FP or 10LA should be a fine match-up for the Colt.