Sunday, June 9, 2019

Making a small modification on Goat

The angle bracket from last update is trimmed and updated, on both left and right.  What's the process for doing this modification?  Let's step through...

Before trimming, the bracket protruded forward of the airfoil profile.  This is the leading edge tube the marked aluminum bracket is what will be cut off.  Originally, the shape was for the kingpost attachment, but I switched to a strut-braced wing for (hopefully) lower drag.  Time to cut this bracket.

This one is easy enough to cut by hand, chucked in rubber soft-jaws of the bench-top vice.

Tada, cut and filed with fillets.

Here's where the bracket goes.  Really fun that modifications like this can simply be un-bolted and re-bolted once the change is done!

And here's the same bracket bolted back in place.  Time for the foam leading edge shells.

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