Gary Brink
New member
Dan, 90% of new metal fron Dawley may be conservative. I sent my exhaust system to him a few years ago and I honestly can't see any of the old metal. It did come back with the original clamps, however. 
Cruisair Wing Repair
- Thread starter Harmon
- Start date
blimpy
New member
nobody needs a NEW wing.. they need to repair what is wrong with the one they have, or they
need another used wing, and repair what is wrong with that...
I am going to go out on a limb and say that the closed area between the back of the rear spar,
and the trailing edge, the area of the wing walk, the tank cover, and maybe the butt end of the spar are gonna be the mostly likely problem areas.
dan has written about the areas where bolts pass through the spar ( in boat building we call it "nail sickness" )
all of those except real problems with the spar should be field repairable without a ph.d.
ton of time.. and big fear factor as you start trying to remove wing skin to get to structure...
but in the end.. it's work. Do the work till it's done.. and there you are.
ITOFTS Factor does apply ( I'm to old for.....).
Your milage may vary. Mine does.
need another used wing, and repair what is wrong with that...
I am going to go out on a limb and say that the closed area between the back of the rear spar,
and the trailing edge, the area of the wing walk, the tank cover, and maybe the butt end of the spar are gonna be the mostly likely problem areas.
dan has written about the areas where bolts pass through the spar ( in boat building we call it "nail sickness" )
all of those except real problems with the spar should be field repairable without a ph.d.
ton of time.. and big fear factor as you start trying to remove wing skin to get to structure...
but in the end.. it's work. Do the work till it's done.. and there you are.
ITOFTS Factor does apply ( I'm to old for.....).
Your milage may vary. Mine does.
blimpy
New member
In the "when in doubt read the manual" department..
I just re-read AC-43 regarding the 4 ways to patch ply wing skin.
low and behold.. there was the diagram I am apparently too stupid to understand
( dyslexic in the 3rd and 4th dimensions) which showed how to make a double thickness round doubler with an open center, cutting the edge so it can be cork-screwed in through a smaller round hole.
This makes the glue area much smaller than I was envisioning.. making use of small screws
to clamp the work much more appetizing.
Old timer said.. use an electric blanket.. it will be a heating pad.. but that will get the working temp up to around 100 F... powered by deep cycle batteries and an inverter. So no worries about the hanger going into the 40's at night.
Plug patch.. nothing fancy.
Thank you FAA... there I said it.
I just re-read AC-43 regarding the 4 ways to patch ply wing skin.
low and behold.. there was the diagram I am apparently too stupid to understand
( dyslexic in the 3rd and 4th dimensions) which showed how to make a double thickness round doubler with an open center, cutting the edge so it can be cork-screwed in through a smaller round hole.
This makes the glue area much smaller than I was envisioning.. making use of small screws
to clamp the work much more appetizing.
Old timer said.. use an electric blanket.. it will be a heating pad.. but that will get the working temp up to around 100 F... powered by deep cycle batteries and an inverter. So no worries about the hanger going into the 40's at night.
Plug patch.. nothing fancy.
Thank you FAA... there I said it.
blimpy
New member
Back to the original problem.
1. Get an expert to inspect your wings.. so you know what problems you Actually have.
nothing beats an experts inspection to rid you of evils you imagine you have - but don't.
From that point on, there is something real to deal with. The expense is the labor.. you do it.. and it's cheap.
2. The curved leading edge of the wing isn't that hard to repair. you have to make a forming jig, you have to heat the
plywood, you have to clamp it in the jig and wait. you have to carefully remove the damaged part of the formed skin,
and replace it with new... but it's not hard.. just time consuming, requires space, thought, and patience.
1. Get an expert to inspect your wings.. so you know what problems you Actually have.
nothing beats an experts inspection to rid you of evils you imagine you have - but don't.
From that point on, there is something real to deal with. The expense is the labor.. you do it.. and it's cheap.
2. The curved leading edge of the wing isn't that hard to repair. you have to make a forming jig, you have to heat the
plywood, you have to clamp it in the jig and wait. you have to carefully remove the damaged part of the formed skin,
and replace it with new... but it's not hard.. just time consuming, requires space, thought, and patience.
Larry Lowenkron
Member
or you can just buy preformed leading edge plywood from Alexandria. Happy Holidays you guys!
Larry Lowenkron
Larry Lowenkron