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<DIV>After many many flights, I had an aluminum header break for my OS 1.60. I had it welded up by a very good welder, but the header broke again after one flight in an area removed from the weld, but close enough that it would have gotten pretty hot. I suspect that the heat treat of the header got changed. Any ideas on how to try to heat treat a second pipe that has benn welded to try to at least get more than one flight? I've odered a new header, but it is not here yet.</DIV>
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<DIV>Thanks</DIV>
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<DIV><FONT size=2 PTSIZE="10">Jon Lowe<BR></FONT></DIV></BODY></HTML>