I just bought and have started a Seagull models Spacewalker ll. I am sure glad that this is not my first model! It is acually my eighth. Had it been my first I would have never been able to complete a flying model. The instructions seem to have been written and then translated, and something was lost in the translation. When I bought this model it said that up to a 70 four stroke would work well. It will after several major modifications. 5 and 5/8 from the fire wall to the thrust washer would work well if you were installing a DA 50 or something, but any recomended engine just can't hang out that far with the supplied frame and cowel. The instructions for mounting the wing and horizontal stablizer would lead you to believe that you do not need to square things up with the fuse or with each other. There is no mention of that at all. Of course I was really dismayed that I had to install a COW around my engine! I would have had to hang a truck on the tail to get a CG balance!

Having said all that, the air frame and covering are of good to great quality. I think once I get it all put together, it will be a good looking and fun flying model.