Finished watching the vids on covering and did pick up a lot of info. I am covering a wing from a Sig trainer. The wing is basically a hershy bar type with the bottom on the tips curving up. A simple wing and a no brainer to most of you. In the videos the wing was tapered and only took the covering almost to the end. Did the tips in a separate operation. Is this normal procedure or can you take the covering for the entire length of the wing? Thanks for your time and hopefully will see responses soon. gphil

You can cover all the way to the end of the wing, it just takes a little practice going over a rounded wing tip.

Bob

Thanks Bob,,,,,,,,,, My thinking why the extra step. From your response however if the tip is rounded etc you do need to do it separately. On another side of this took off the ailerons, do you use the same slots or go to one side for new ca hinges? I was thinking of just biting the bullet and getting hinges already jointed and use on hole etc. New at this and simplicity means a lot for me. gphil

All the vairiations of Cadets use the same wing tips. It is not rounded but is a flat rib glued all along the bottom and angled up and outward at roughly a 45 degree angle.

I have covered a ton of Cadet wings and what works for me it to use a small piece of covering and cover the underside of the tip then cut and seal the edges all the way around. In other words just the underside of the angled tip is now covered. The next step is to cover the bottom of one panel of the wing entirely with one piece then do the other. Next just turn over and doing one panel at a time cover from the center line all the way to the tip. Its flat even out to the tip.

Another method on the cadet wings and what I currently prefer to do is cover just the bottom of the tip ribs as above then with narrow (maybe six inchs) sheets cover just the sheeted inboard sections of the wing. Then do each of the four large open bay sections from the narrow inboard section all the way to the tips Forming a seam about a half inch from the edge of the balsa sheeting.


John

With a little forethought you can cover the whole wing length with one piece. Start covering at the root and leave the last 6 inches or so of the wing unattached. Leave enough covering at the leading and training edge to be able to grab and pull. Break out the heat gun, and pull on the covering right at the wingtip while blowing heat from the tip inwards. You're looking to heat the covering for the first 4-6 inches from the wingtip so that it will shrink and stretch to go around the compound curve. Go all the way around the wingtip using no more heat that is necessary to get the covering tight, then do the same to the LE and TE to get the linear wrinkles out and pull the covering tight. If you haven't used too much heat, any wrinkles that remain will shrink right out when you go over the wing after the covering is complete.