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From: Dave Bethke
Date: Mon, 12 May 1997 13:29:41 -0800 Subject: About JP-8 fuel [Regarding the "JP-8" designation seen on a fuel truck at Basecamp airfield.] > A thread on jet fuel from rec.aviation.misc (snipped) -- Subject: JP-4, 5,7,8, Jet A Date: Fri, 9 May 1997 09:47:25 -0500 Howdy, Help me get my facts straight, I used to know the difference between the different types of Jet fuels, but my mind is going. To help me settle a discussion, how close am I to reality when I say: JP-4: kerosene JP-5: ?? JP-7: Chanel #5, burned by SR-71 JP-8: Low flash point, used by U.S. Navy Jet-A: Same as JP-8 thanks, Jim Howard email@example.com ---------------- Date: Fri, 9 May 1997 15:20:46 GMT Sender: firstname.lastname@example.org Nope. -4 was loaded with tolune and naptha and other goodies. Jet-A is pure Kero. ---------------- Date: Fri, 09 May 1997 12:36:12 -0700 From: Michel Kronowit <email@example.com> JP-5 is what the US Navy has used for years and still uses aboard carriers and other ships with aircraft. It has a high flash point which means it doesn't vaporize until it reaches about 130 degrees F or so. This makes it ideally suited for storage aboard ship where flammability is not desired. JP-8 is the "new" replacement for JP-5 in the US Navy, but is only used ashore. JP-5 is still used on ships. I'm not sure what the big difference is between -5 and -8, but I think -8 has a slightly lower flash point than -5 so -8 is not allowed on ships. Why the Navy went to JP-8 I'm not sure. I think it might be cheaper, but there might be some other reason. M.K. ---------------- (end of repost) -- Dave Bethke on the fringe of Houston
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