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Wednesday, April 25, 2018

Estes Little Joe II (Small) Build, Part 13, Kevlar and Wrap

The engine mount has already been glued into the body tube. I probably should have tied the Kevlar loop, fitted to the BT-5 engine mount tube.

To do it after the fact,
The Kevlar I'm using has started to unravel. Some glue was applied on the last inch and a half. Twist the Kevlar as you rub the glue into the fiber winds. This stiffens the line and allows you to tie it and feed the loose end through the interior tube.

I couldn't tie the tube loop with the mount already glued in so it was tied around a scrap piece of BT-5. Tie it fairly tight but give the loop a little slack so the engine hook can have movement.

The loose end is fed through the tube and the loop fitted around the short extension of the engine mount tube. Long tweezers can help fit the loop.




The corrugated wrap is slightly formed in the palm of my hand with a 1/2" diameter dowel. Concentrate on the ends so they curve and meet at the tube joint.

Make two small tape loops with the adhesive side out. You don't want it too sticky, it could peel up a layer of paper when it's pulled off.
Before setting on the finish, corrugated side, press and peel off your pant leg a few times to reduce the adhesive.
Set the tape loops on the outside surface of the wrap, one on each side.



Set the wrap, printed side down on scrap cardboard for a shot of adhesive. The tape holds the wrap down close to the backing board preventing any spray from getting under and on the finished side.
I use the 3M 77 adhesive spray.
The 3M 45 is too light a tack, the 90 formula is too strong.

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