Thank you da Rock. You really gave a lot of info, I must say a huge thank you for that . My way of checking is by what the info sheet tells- use a scrap piece of covering and test how fast or slow it shrinks. Slow shrnking is recommended temp, while fast shrinking is hih temp. I figured out that what I was doing wrong when covering is some of the covering film was no tacked onto the fram. As soon as that was done, the coveruing easily shrunk with no loops and wrinklish parts. I am hoping on a better next wing, and an even better fuse. Today as I was walking down the street with the completed wing, it was quite windy and I heard my wing just simply buzz and voluntarily lift by about 50 degrees. I take that as a good sign, since a wing that can lift half of iself two wings wil lift a whole wing in simply wind only. Now with the engine, I am launching for the full plane, since the wind was about 10-15 km per hour and my flying speed will be 60-70 km per hour.


Again let me confirm please. If I have a wing which is not perfect and has patches of wrinkles here and there, will the amount of lift produced be afected? Will there be an efect on performance other than a need on trimming the control surfaces? I know that there will be more drag, but will anything else flight-important be affected such as the amount of lift? My plane is wingspan 1.4 meters and length 1 meter. Will this plane fly having a comsiderable amount of wrinkles on the wings? My plane's weight is 2 kg, powered by a .46 O.S. engine.