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Old 11-25-2020, 11:17 PM
scsmith scsmith is online now
Join Date: Jan 2008
Location: Ashland, OR
Posts: 2,760

Originally Posted by Ironflight View Post
Uh, point of order...calling a Caver a “spelunker” is like calling a marathon runner a “jogger”.....
OOps, sorry. Would speleologist be more appropriate?
Steve Smith
Aeronautical Engineer
RV-8 N825RV
IO-360 A1A
WW 200RV
"The Magic Carpet" Flying since Sept. 2009
Hobbs 635
LS6-15/18W sailplane SOLD
bought my old LS6-A back!!
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Old 11-26-2020, 10:02 AM
David Paule David Paule is offline
Join Date: Dec 2009
Location: Boulder, CO
Posts: 4,645

Originally Posted by RVFan671 View Post
....I was planning on the forward side firewall protection and the under belly to keep 'normal'rv10 heat away from the tunnel (still need to figure out how to attach the stainless to the alum skin).
Here's how I did it, starting at post #365. It came out rather well.


Last edited by David Paule : 11-26-2020 at 01:22 PM.
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Old 11-26-2020, 10:12 PM
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skylor skylor is offline
Join Date: Aug 2009
Location: Southern California
Posts: 947
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Originally Posted by rzbill View Post
I have seen the results of a fuel fed engine compartment fire on an RV (not mine).

Do not be concerned with aluminum firewall rivets.
The heat of the fire will follow the normal airflow pattern to exit at the bottom of the cowl.

DO be concerned with the aluminum floorboards under the rudder pedals.
On the observed craft, there was a melted hole in that area.

It has been suggested to cover some of the bottom skin with stainless.
While I have not done it (the suggestion was post construction), I think it is a good thing to consider.
This reasoning is precisely why I chose to fabricate a SS cowl exit ramp for my RV-8, and it's backed up with fiberfrax ceramic insulation. The reasoning here is that a fuel fed FWF fire will result in flames and heat underneath the airframe. The stainless exit ram and insulation will hopefully provide some protection to the forward floor and my feet. I also elected to follow Dan H's advice and insulate the engine side of my firewall with fiberfrax covered with stainless foil.

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