flyrotary@lancaironline.net Mailing List Archive

Message

Ed,

Me thinks that maybe you have a misunderstanding of the term "flash point". It is not what most people assume it is. I say this because the flash point of the gas in your tank is something like 60 degrees BELOW 0. That means that on a hot day, the temperature could exceed the flash point by 160 degrees and you don't see too many people concerned about that.

Bob Darrah

----- Original Message -----

From: Ed Anderson

To: Rotary motors in aircraft

Sent: Thursday, December 01, 2005 7:43 PM

Subject: [FlyRotary] Re: fuel/brake lines

Rusty,

I went with the new high flash point aircraft brake fluid (MIL-H-83282)- flash point is 450F vs 240F for the old stuff. I had to get a gallon of the stuff (enough to probably last me for years and years and years), but after the fire, I feel a bit more comfortable that it won't go up with the temp a little over the boiling point of water. I considered some of the auto brake fluids - but have heard some horror stories about incompatibility with aircraft seals - I know there is some DOT formulas that supposedly are compatible - but did not feel like experimenting {:>)

Ed