[-)-MAILMAN-]

Well the P-47's had a turbo supercharger with their R-2800, but the Hellcats and Corsairs had manual two stage, two speed superchargers. The Hellcats had the R-2800-10 & 10W while the Corsairs had the R-2800-8 & R2800-8W.

Using the R-2800-8 of the Corsair as an example under the below Operating Conditions:

Sea Level
Take-Off Maximum Duration 5 minutes 2000HP 2700 RPM 54"Hg Auto Rich Neutral Blower Max Cylinder Head Temp is 260°c Max Oil Temperature 100°c
War Emergency Maximum Duration 5 minutes 2250 HP 2700 RPM 57.5"Hg Auto Rich Neutral Blower Max Cylinder Head Temp is 260°c Max Oil Temperature 100°c
Military Maximum Duration 5 minutes 2000HP 2700 RPM 52.5" Auto Rich Neutral Blower Max Cylinder Head Temp is 260°c Max Oil Temperature 100°c

Does the 5 minute duration start the moment we cross from normal rated continuous to one of the above conditions or from the time we start seeing the Overheat Message?

Does the engine damage occur after 5 minutes duration above normal rated continuous or 5 minutes after the overheat message?

Is there a specific time when the overheat message appears after crossing from normal rated continuous to one of the above conditions?


Critical Altitude
With RAM: What is RAM and how does it determine the critical altitude?
NO RAM: What is NO RAM and how does it determine the critical altitude?

Why is there a 2,000 foot difference between With RAM & NO RAM?

Thanks


-)-MAILMAN-