Mosquito

[wuzak]

Early manifold with single outlet.

Ejector exhausts (5 outlet)

Saxophone/flame damping exhaust

All taken from the thread Mosquito exhaust - 5 pipes or 6 ?

The engine side cowlings were metal.

 

[wuzak]

Looked it up and it seems the early exhaust manifolds (the ones with an exhaust log feeding multiple cylinder as well as the 5-port unit) gave issues with heat deteriorating the wood. They played with the manifolds to reduce heat effects and to reduce exhaust flame for night fighters. Logical, anyway.

There was a substantial improvement in performance when they went to the ejector exhausts, and even the saxophone exhaust, compared to the original exhaust.

Most day use Mosquitoes, such as the FB.VI, used the ejector exhausts.

 

[GregP]

Early manifold with single outlet.

View attachment 757833

Ejector exhausts (5 outlet)
View attachment 757834

Saxophone/flame damping exhaust
View attachment 757835

All taken from the thread Mosquito exhaust - 5 pipes or 6 ?

The engine side cowlings were metal.

Nice post, Wayne. That's the two illustrations I found, too. It looks like there are at least 4 configurations, if not more; these right above plus the 6-into-1 single exhaust (also above) and the 6 individual exhaust manifolds. There might be more.

The one visiting in our hangar has the 6-into-5 manifolds (top illustration of the two above) and is configured as an FB Mk.VI. It is a really nice-looking airplane! Of course, being a Mosquito, that's a bit of a given.

 

[Crimea_River]

Only one of the 4 currently flying uses the 2 stage Merlins and that's the one at KF Aero, VR796

 

[GregP]

Yeah, not too many people want to spend what is costs to fly a Mosquito and have to do it IFR up high where the 2-stage makes a difference. Most warbird pilots stay VFR and bend the bird around a bit on regular occasions.