Just my 2 cents: This is a trainer and it WILL be abused. Even if you get it covered with the right kind of silk, it will not be good for repairing as will most likely be needed at some or many points in time. Silk is fragile and a lot of work to get it right is required...it is an art form really. I used it on rubber and flow free flight planes many eons ago. Just go with an iron on covering, use the coverite woven one if you want that silk woven appearance. You can work this stuff easier and then repair it easier too. These coverings are tougher than silk also. And a previous response was correct IMO...heat iron was not used to shrink the silk. After it was adhered to the frame with dope, it was lightly sprayed with water and allowed to dry and shrink at the same time. Only then do you find if you applied it well enough to avoid wrinkles all over the place. Jon