There are button welds tacked in at the key spots that get the job done correctly...
Remember the design can be thought of as a live frame, it wrestles with the stiff shell but can never 'win' --- also with thinner gauge stampings those outriggers and spars are amazingly breakaway to self-sacrifice their shape instead of tearing & creasing shell aluminum or shattering plywood. I had two pretzeled outriggers, folded up and twisted without damage to the plywood or c-channel...
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The days are short and the night is long and the stars go tumbling by.. . ~Airstream~
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