Dissimilar Aircraft Formation Flying

[Seth]

On 3/27/2021 at 8:23 PM, Yooper Rocketman said:

The “E” model IS 750 HP, but is an underperforming engine to the “D” in the Flight Levels.   If you desire maximum performance in the Flight Levels, the D would be your choice.   I have the “D”.   It’s rated to 724HP, not “de-rated”.    The “E” just doesn’t handle bleed air losses for pressurization as well as the “D”.   
 

I’m ITT limited, but at 310 knots, I’m not particularly disappointed in its performance.  And the “E” has a higher ITT limitation.  But it doesn’t help it’s performance up high.   Most pressurized airplanes perform MUCH BETTER with the “D” model of the Walters.  
 

Tom

That's a great piece of aviation knowledge - I tend to remember these little facts so thank you.