Wednesday, August 20, 2014

Carded Downscale Black Brant VB - Part 3, Launch Lug Wrap



Cut out the lug wrap and do a pre-curl in the heel of your hand.
Use a small dowel or the shaft of a Q-tip.

Apply a coat of glue stick to the inside surface.
The lug is small and you can start the wrap from the center working out.

I set the lug in the middle of the wrap an rolled the sides to the top.
This lug is purposely longer than the wrap and will be sanded to the to and bottom of the wrap.

By the time I got to the other side the glue had started to set up. Another rub of glue stick and the wrap was finished.

The top and botttom of the lug were sanded to the length of the wrap with 400 grit on a block.
On the left you can see some of the lug edge rolling into the middle.
Pick out and raise the edge over the top of the lug. Raise about 1/3 of the turned under edge and sand off.
Turn the lug 1/3 turn and raised the next third inside edge. Sand that off.
Work your way around the inside of the lug until all the edges are removed.

Compare the lower picture with the upper lug and you can see the rolled over edge is gone.
A turned under lug edge might get caught on a launch rod or slow down the boost speed. It should be cleaned off.

The inset picture shows the wrap seam. Like the body tube wrap the edges are almost invisible.
This lug wrap seam will be turned into the fin fillet area.

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