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scale exhaust diameter

Loredo

New to GSN!
Hi need help in finding the right diameter exhaust stack for a ziroli 98" wingspan p51d, don't want to fabricate mufflers that not close to scale
 

Loredo

New to GSN!
well I made a trial exhaust, still needs painting just need honest opinion whether they need to be smaller in diameter
IMG_0936.JPG
IMG_0939.JPG
 

Bipeguy03

150cc
Looks really good!!

When I was researching P-51 for a display model I was building I remember reading a paper about the RR Merlin, and if memory serves the Stacks were 4 or 4.5 inches in diameter. Don't hold me to that though, I can't find the paper I read to check.

I would be quite happy with what you have, it looks right on!
 
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