Saturday, September 24, 2016

Horizontal Stab #2

Been working on the stab as per plans.

I originally only bought 100 clecos, those silver things in the picture, but seems 150 would make it easier and faster. More are on order.

The kit has the pilot holes in the parts very precisely punched using a computer controlled machine at the factory. Very precise. Much like an Erector set. In the horizontal stab jig, the rear spar holes where a little off, probably 3 thousandths. I lifted up the stab from the fixture and everything came into alignment. It seems if the holes in the mating parts don't match up, something is wrong. In this case, the jig is probably not precisely leveled. No big deal, just gotta take that into account. Others say that on first flight, most planes fly very true; this probably has a lot to do with the precise fabrication of these parts.

Not much else to report as I progress through. This is fun.

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