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j ferguson · 9 July 2008, 11:26 AM

thanks, Dan, for the note. I was astonished about not having firewalls. When we were looking at Spadmaker's build it looked like there wasn't going to be a firewall, which I thought was a bit dicey.

I guess they felt that these planes were like motorcycles.

I think you might assume that without a firewall, the airflow in the cockpit would be mostly out and that there would be enough turbulence for that reason that there couldn't be any eddies with exhaust fumes in them.

It must have been a problem on some German planes with in-line engines because you sometimes see the stacks fed to a vertical stack to get the discharge over the wing. This seems ( I could be wrong, here) mostly 2 seaters. Maybe the problem was in the second seat.

My only open-cockpit time was in a Stearman and I can't remember any fume issue.

best regards, John

9 July 2008, 11:26 AM	#7 (permalink)
j ferguson Two-seater Pilot Join Date: May 2006 Location: Intracoastal Waterway, USA Posts: 235	thanks, Dan, for the note. I was astonished about not having firewalls. When we were looking at Spadmaker's build it looked like there wasn't going to be a firewall, which I thought was a bit dicey. I guess they felt that these planes were like motorcycles. I think you might assume that without a firewall, the airflow in the cockpit would be mostly out and that there would be enough turbulence for that reason that there couldn't be any eddies with exhaust fumes in them. It must have been a problem on some German planes with in-line engines because you sometimes see the stacks fed to a vertical stack to get the discharge over the wing. This seems ( I could be wrong, here) mostly 2 seaters. Maybe the problem was in the second seat. My only open-cockpit time was in a Stearman and I can't remember any fume issue. best regards, John Last edited by j ferguson; 9 July 2008 at 11:40 AM.