America's Cup HY-80 keel failure (HY130, 4340 substitution)

Developed case study illustrating zone-three preheat for 4340 steel. Jerry Milgram (MIT ocean engineering) calls Tom because the HY130 keel of an America's Cup prototype bent during sea trials; four-inch HY130 was the strongest plate available and it wasn't strong enough. Tom develops a welding procedure for 4340 using the structural welding code methodology just taught.

The story I'll tell you in the last couple of minutes — by the way, you can have Monday off, it's a holiday. The story I'll tell you, I don't think I've told this story — maybe I told it last year, I apologize. Did I tell you the story about the America's Cup? Yeah. If I did you don't remember, but maybe you do.