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Elevator tip tip

Posted: Sun Mar 01, 2015 4:08 pm
by orchardair
Unlike the upper tips of the vertical stabilizer and the rudder, the plans show the tips of the elevators without a flattening of the larger diameter tube, in this case the leading edge.
This is how I managed to weld the leading edge and the trailing edge where they meet.
first, drill the leading edge to accept the trailing edge, but only on one side of the tube. In other words, don't drill all the way through.
Then chop the leading edge at the end of the hole you just drilled, like so:
preparation
preparation
20150228_171141_337x600.jpg (36.38 KiB) Viewed 2290 times
Then, using the torch to heat and a flat head hammer to move metal, "fold" the ends inwards:
folding in
folding in
20150228_171451_337x600.jpg (34.09 KiB) Viewed 2290 times
Check for fit (you might need to use the bench grinder to get the edges nice:
check for fit
check for fit
20150228_171752_337x600.jpg (32.04 KiB) Viewed 2290 times
Special care should be taken so that the opposite edge of the smaller diameter does not flare outwards. Again, I used the hammer and heat:
no flare
no flare
20150228_171813_337x600.jpg (24.78 KiB) Viewed 2290 times
The end result after welding:
welded
welded
20150228_173015_800x450.jpg (65.95 KiB) Viewed 2290 times