The last times I was able to slowly go through the vendor's buildings at Oshkosh, many years ago, there was always a display of a metal sandwich of crumpled metal. The tank would be opened and filled with this stuff then re-sealed.
The stuff allowed free, but slow, flow of fuel in the tank while only using up 3% of the volume. The tank could not gush out its fuel. They showed video of tracer rounds being shot through the tank and, while the fuel would flow out and catch fire, it came out slowly enough that there was a small flame - no gush, no fireball. Is this stuff still on the market? If so, does the FAA approve this for certificated planes or is it only for experimentals? Is this an option that might work instead of the bladder idea? Ed ____________________________________________________________ Need property surveying? Hasler Winter in New Malden can send an experienced surveyor to help you fi <http://thirdpartyoffers.juno.com/TGL2132/fc/HiMzbGRwgp5wZ0qDE9FRiUjCo3vJpDj d0SkJRgleAB4GfSeXte/>
