America's Cup hydraulic hardware failure (Navtec)

7,500 psi hydraulics in 7075-T6 aluminum, 2 mm wall, critical flaw size 1.5 mm — shattered. Redesigned to 7075-T7: 10% strength loss for 2× toughness gain. Leak-before-break achieved.

I had one of those things once — I told you the story about the America's Cup hardware. They want it to fail periodically. If it doesn't fail, you've made it too heavy, because you're trying to win a race for some billionaire who's investing 100 million dollars in this yacht, and he wants to have drinking privileges at the bar with his counterpart who spent 100 million dollars, another billionaire. How do you rub his nose in it at the bar unless you win? Pride is a big thing driving this type of stuff.