aerobatic kit planes

Well what should be done is to make lots of practice welds and break them
and/or cut them apart to see how your penetration looks - before long you
either get it or you don't. Gas welding is a bit of an art...

The only welding I've done is gas and by the lords, when I got it
right it was RIGHT.

I think you can tell on gas pretty good because everything around the
bead is molten. Only thing is the cool down, which Finch says can
really screw up a weld.

I was using 4130 tube, can't remember the thickness; made a "luggage"
rack for my Royal Enfield for a trip across the great plains (if you
can figure that on single cylinder bike). I could not break those
welds. The luggage was too ammo cans.

Gas is good. I enjoyed it too, except I made one error: I bought cheap
a$$ regulators and the oxygen flow tended to pop.

Should've spend another 75 to 100, then had something reasonable. If I
build a Acro, and want to use gas, I'll get good equipment. I saw
recently William Wynn talking up a great little Mig welder. That might
be good.

Gas, TIG, or MIG?