Your "Official" military crap has nothing to do with the civilian world. We use less volitale fuels, low pressure-low volume fuelers, better trained and motivated personnel and rarely fill top the tank off while running. We do not depend on the closed circut system to stop the fueling process.
Show me some CIVILIAN "hot refueling" accidents. Millions of gallons are pumped every day into every concivable type of helicopter using this method. It's a whole lot less dangerous than pumping gasoline into an automoble yet this is done every day with an almost zero statistical rate of accident.
[This message has been edited by Lama Bear (edited 13 March 2001).]