Sign in to follow this  
Guest paddy

Manifold Pressure

Recommended Posts

In Microsoft Flight Simulator Insider, Rod Machado writes:"Under normal conditions, the engine's manifold pressure can't rise above atmospheric pressure".Assume a take-off runway at sea level and ISA standard conditions.Manifold pressure in a parked DC-3 on that runway will indicate 30 inches Hg (rounded off).Now, taking off this DC-3 from that runway, applying take-off power, the MP gauge indicates 48"Hg. So it rises +18"Hg above the actual atmospheric pressure!Thanks for any explanation.Stupido.

Share this post


Link to post
Share on other sites
Help AVSIM continue to serve you!
Please donate today!

>Engines are turbo compressed ! Just have a look to the Seneca>V>>Didier>ROTWThanks Didier! For your info I found the following to add:Engines DC-3 14 cylinder, twin-row, radial, air cooled Pratt & Whitney R-1830-92. Each engine is equipped with an integral single-speed supercharger with an impeller gear ratio of 7.15 to 1.Paddy.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this