Engine power curves.

[Neil Stirling]

Engine power curves from the late 1930's

https://dl.dropbox.com/u/93074546/Engine charts late 1930'S.rar

Neil.

 

[tomo pauk]

Another goldmine Thanks.

Never knew that 1st Hercules (at least II and IV) engines have had single speed superchargers?

 

[wuzak]

Awesome Neil. Many thanks.

That Exe sure was a go-er! 1160hp @ 1,000ft, 4200rpm at take-off power. And only 4.5psi boost!
And 1100hp @ 5,0000ft and 950hp @ 15,000ft, 3800rpm

Vulture RV.2SM: 2000hp @ 5,000ft, 3000rpm, +9.25psi boost MS gear, 1860hp @ 14,500ft, 3000rp, +9.25psi boost.
Max take-off power, 2100hp @ sea level, 3000rpm, +11.5psi boost.

Not too many aero engines at that time had the combination of power and compactness that the Vulture did. Pity about the reliability.

Dagger VIII: 1000hp @ 8,750ft, 4200rpm, +5psi boost max. But the other curve on the graph shows 1115hp @ 7,250ft, 4400rpm and +7psi boost.


Not sure I follow the RPM-power graphs. The curves don't finish up at the max power point.

 

[Juha]

Thanks a lot, Neil!
Excellent material!
I'm specially thankful for the Cheetah (Anson), Aquila (Venom) and Mercury VII (FiAF Fokker D.XXI) graphs.

Juha

 

[krieghund]

Oh man a treasure trove!!

 

[Shortround6]

Another heartfelt thanks, Both for the information and your effort in making it available.

 

[Vincenzo]

Again thanks

 

[Neil Stirling]

Thanks guys.

Neil.

 

[Aozora]

*jaw hangs open and gah! * WOW - fantastic.

 

[Tante Ju]

Very good share! I am curious, it seems early Merlin engine develops less power at higher RPM (if I read graph right) - why is that anyone know?

 

[wuzak]

Very good share! I am curious, it seems early Merlin engine develops less power at higher RPM (if I read graph right) - why is that anyone know?

Which graph?

 

[fastmongrel]

Cant open the file my firewall keeps jumping on it. Would you be able to repost it as a pdf.

 

[Neil Stirling]

No, this is all I can do.

Neil.