Wing Saddle Fit
#1
Thread Starter
Junior Member
Joined: Jul 2005
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
From: Cambridge,
ON, CANADA
Greetings all ,
My qusetion is regarding the wing saddle fit on the Carl Goldberg Tiger 2 kit I am working on. The fit is nice and tight where the hold-down bolts meet the fuse but there is a small amount of play where the dowel in the LE meets the fuse. What can i do to remedy this problem?
E-mail's are [email protected]
Adam.
"It's not what you fly, it's how often you fly it that counts!!!"
#2
Senior Member
My Feedback: (9)
Joined: Apr 2003
Posts: 1,339
Likes: 0
Received 0 Likes
on
0 Posts
From: Manvel,
TX
Sometimes general sloppiness in the dowel hole is the problem you can smear a little epoxy in the hole and then file it out to fit the dowel snugly. If the hole is located too far towards the bottom of the bulkhead you might have to cut out a section of the bulkhead and glue in a new one with the hole reposisitioned. You can also fill in the dowel hole in the leading edge and cut a new hole lower on the wing. There are several options available but it's important to have a tight fit between the fuse and the wing.
#4
Senior Member
Joined: Oct 2002
Posts: 1,047
Likes: 0
Received 0 Likes
on
0 Posts
From: Leesburg,
IN
Since it's the wing saddle fit that you mention, not the dowel fit into the fuse, I suggest gently sanding the saddle to fit - without altering the wing incidence too much. The use of wing saddle tape should - in my opinion - be limited to keeping exhaust, fuel, etc. out of the fuse.
#5
Senior Member
To get a perfect wing saddle, stretch some Saran Wrap tightly around the wing center section with tape. Mix a little epoxy and microballloons to a medium consistency. Lay a small bead of the epoxy on the fuselage edges that form the saddle. Bolt the wing down and check the incidence/alignment. Let it dry overnight. Pop the wing off. Sand the excess epoxy flat with the fuselage sides. Put the wing back on and admire the perfect, oil-proof fit.
#6
Senior Member
My Feedback: (9)
Joined: Apr 2003
Posts: 1,339
Likes: 0
Received 0 Likes
on
0 Posts
From: Manvel,
TX
That's a good idea but you have to be careful not to build in negative incidence in the wing by pushing the wing down in the front to make the dowel to bulkhead fit tight and filling the gap.
#8
Thread Starter
Junior Member
Joined: Jul 2005
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
From: Cambridge,
ON, CANADA
Hey guys, thanks for all the input...
There is a small amount of play at the dowel/dowelhole and a small space between the wing saddle/wing. Dont know what i should do!!
Adam
#9
Senior Member
Joined: Oct 2002
Posts: 1,047
Likes: 0
Received 0 Likes
on
0 Posts
From: Leesburg,
IN
Since you have a bunch of good suggestions for how to handle the "small space between the wing saddle/wing.", let's address the "small amount of play at the dowel/dowelhole".
Easiest way to handle this is - if you can get to the compartment in front of the wing dowel hole (such as the tank compartment) - put a small square of lite ply over the hole with the correct diameter hole in it and glue this to the front of the former that has the dowel hole. Drill the hole in the small square first, have the wing on the fuse with it sitting correctly, place the square over the protruding dowel end and then glue the square to the former.
Alternatively, with a square of ply (approx. 1"x1"), use it as a template to cut the existing former part with the hole in it, glue the new piece - that doesn't have a hole yet - in place and then line up and drill the dowel hole as was originally done.
Easiest way to handle this is - if you can get to the compartment in front of the wing dowel hole (such as the tank compartment) - put a small square of lite ply over the hole with the correct diameter hole in it and glue this to the front of the former that has the dowel hole. Drill the hole in the small square first, have the wing on the fuse with it sitting correctly, place the square over the protruding dowel end and then glue the square to the former.
Alternatively, with a square of ply (approx. 1"x1"), use it as a template to cut the existing former part with the hole in it, glue the new piece - that doesn't have a hole yet - in place and then line up and drill the dowel hole as was originally done.




