In my plane I have a 3/8" Al tube following the entire fuel
system and ending in front of the turbo. It has a 1/8" hole every 3"
facing the fuel systems. It is connected to a bulkhead fitting at the
firewall with a hose leading from there back to the extinguisher mount.
I removed the little plastic nozzle from the extinguisher and threaded
in a swedglok fitting. The hose is threaded on finger tight, allowing
quick removal of the hose in case of an in-cabin fire. I really don't
know how well this would work for an engine fire as I don't really want
to test it with dry chem, however in a real fire I couldn't give a rat's
ass about any mess and would rather have the dry chem residual to
hopefully prevent reignition.
This isn't the best system but it was free, lightweight and easy
to implement, so has been in place since before first flight and while I
hope to never have to test it, it does give me a level of comfort not
possible from dreaming of the perfect system. The reason I say this is
that every few years, I see lots of discussion on the best possible
systems until the thread dies away and I doubt that anybody has actually
implemented a system.

Todd Bartrim
C-FSTB
  "The world will always have a place for those that bring hard work
and determination to the things that they do"

I lost a very good friend a month ago. he had a inflight fire after
takeoff and the plane flipped on landing and burned on the ground with
him in it. Ever since i have been discussing with other fliers the
possibilities of a fire suppression system in the engine room. I was
contemplating a 4-5 lb fire extinguisher activatad by the pilot and
leading to 2-3 spray heads around the engine. In case of fire you can
shut the fuel pumps off, fuel valve off and master off. With the
extinguisher running for few seconds, most likely the fire will not
ignite again?
Buly
On Aug 22, 2005, at 12:01 PM, Ed Anderson wrote: