stunthanger.com
General control line discussion => Open Forum => Topic started by: jjorgensen on August 20, 2017, 05:24:37 PM
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Can't believe how much work is involved in this build, but I do like the look
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C'mon .
Jack woulda built it in two weeks . S?P
One ' trick ' We're suffering - sanding those ribs , with a long stick . You need Somone to Hold the Aeroplane so as you can USE BOTH HANDS ON THE SANDING STICK .
might as well prattle on needlessly , Non Shrink Dope first coat or two , tissue on wet .
Theis Way , the dope that drops down on the ribs dont pull the covering down .
I actually usually brush the first coat on the covering only between the ribs - not getting any on the wood .
Second coat unthined ( maybe ) to stop it going thru tissue easily - even holding the plane up & brushing UNDER the surface .
On a Warm Day so it kicks of instantly .
Bleedy cold here & recovering outside bays or Typhoon the THIRD time .
Patiance & damp tissue , doped & pined out to the second last rib , you can generally ' pull ' the stretch to get the tip curve .
But may have to do one spanwise slit & lap on the last bay .
Get the Ribs Perfect with a long stick with fine paper glued on . my ' difficulties ' are patching sanding thru on ribs ,
So this time its , Non Shrinking , full coat , One of Shrinking Nitrate ( Here in Aus ) the one sprayed of talc with a bit of silver .
Sand 320 3M paper , a coat to seal .You can get the light coat there - low shrink butrate .
Super Coat other than the last two thin , and youll get the aerodynamics of a potato chip , from shrinkage - recurring warps - for years .
Yes , That 109G is one of our favourites too .
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Can't believe how much work is involved in this build, but I do like the look
It looks like a classic I-beam, and that would go together a lot faster than you think.
Brett
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(It looks like a classic I-beam, and that would go together a lot faster than you think.)
The wing went together fairly quickly. I like building I-beams because they seem to come out straighter for me for some reason. The rest of the build is taking a long time however. The fuselage required a lot of engineering to get the elevator pushrod to move freely in the tail as there is not a lot of room, and once all the top and bottom sheeting is on there is not much room for adjustment should something be off.