Agree with point 1. Although I have seen them advertised that way many times. When I was selling combat helicopter upgrades (for Eurocopter Pumas or Mil Mi-17 or Mi-24), I used the more conservative terminology "crashworthy".
And it definitely was beaucoup, beaucoup $$$, especially once I had put my markup on it !! Serge Vidal KR2 "Kilimanjaro Cloud" Paris, France "Allen Wiesner " <flash...@usadatanet.net> Envoyé par : krnet-boun...@mylist.net 01/07/2006 02:02 Veuillez répondre à KRnet Remis le : 01/07/2006 02:03 Pour : "KRnet" <kr...@mylist.net> cc : (ccc : Serge VIDAL/DNSA/SAGEM) Objet : Re: KR> fuel tank(s) 1. There ain't no such thing as a crash-proof helicopter fuel tank. 2. Latest practice is to move the fuel outside the fuselage if possible, i.e. sponson tanks. For KR use, think of the wings as skinny sponsons. If you're familiar with the MH-53E/S80-M1, make that very skinny :-) 3. If the fuel has to be in the fuselage, put it behind the cabin with the strongest bulkhead in the A/C in front of it, i.e. Blackhawk. Also, use "Breakaway" connections on all fuel lines (boucou $$$) 4. All tanks do use a "self-sealing" inner bladder (think "bullet-proof", up to 20/23 mm) (more $$$$) 5. And, as I mentioned before, internal/external auxiliary tanks use foam or "Explosafe" aluminum mesh to prevent fuel from flying around in a crash. It doesn't stop the fuel from burning, though :-( Sorry, I don't remember the manufacturer/trade name for the foam. See: http://www.explosafe.com/contents/exploSys.htm Allen G. Wiesner KR-2SS/TD S/N 1118 (ex {involuntarily retired} Sikorsky Tech. Rep.) 65 Franklin Street Ansonia, CT 06401-1240 (203) 732-0508 flash...@usadatanet.net _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html