Tfloyd,

Evolution makes a 26cc gas engine which should be a good match for your US1000. The biggest drawback is the price. A new one sells for +/- $450.00. There are other gas motors in the 30cc range that are less expensive, but most of them have either a side or rear mounted carburetor which makes using them in the tight motor compartment of the plane almost impossible .

If anyone else finds another motor that will work, I'd like to know about it.

David