Thursday, April 8, 2021

TLP Hawk Build, Part 12, Gluing On Fins, Not Quite Finished


With the long root edge, the fit was probably going to be off all the way down the fin.  

Set the fin on the body tube, note where the root edge is touching. Sand down the contact areas. This lowers the root edge gap.

These fins are BIG! I'd recommend using the double gluing method. Until the glue starts to set, these fins want to fall off under their own weight.


Be sure your glue bottle nozzle is clear before laying down the long fillet line.

The top picture shows the glue before smoothing with a fingertip. I don't tend to squeeze the glue bottle, slow down and let the glue flow out on it's own.

The bottom picture is the same fillet after smoothing.




Here's where I'm leaving the build for now.
I have too many contract builds to work on my own projects.

Interesting that the Launch Pad instructions don't usually include a position measurement for gluing on the 3/16" launch lug. They leave that up to the builder.
Drop in the largest motor you think you'll be using and find the Center of Gravity. That's probably the best location for the launch lug. 

No decals included. Those will take a little time to draw.
The "kit" doesn't include any parachute, but I'd want to use one large enough to prevent damage to the fin tips.

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