scale exhaust diameter

[Loredo]

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]

well I made a trial exhaust, still needs painting just need honest opinion whether they need to be smaller in diameter

 

[js-rc]

Wow, they sure look good to me !! Nice job on fabricating them !!

 

[Bipeguy03]

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!