Do the front foot wells need to be that deep?
I don't think I published them, but I ran my calcs with a safety factor based on the force that would be experienced on a 100 kg passenger in the seat (given the geometry of the herald seat runners) and the force to compress the front springs all the way, in static fast load like a big bump. Given that al is less stiff than steel real world in extreme (crash) will be different due to bending etc. I'll go for 2mm in the strongest alloy practical. The original floor was about 1mm steel and ribbed for a stiffer shape. I'll be using a lighter grade sheet for the rest of the cockpit though. My heat shield is .5mm and that's really prone to bend, crease and dent, so I won't go that thin on the inside.
Anyway, just some thoughts while I can't sleep at 3am!
T
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