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Posts Made By:
Walter Atkinson
Forum:
Messages
01-11-14, 02:38 PM
Replies:
30
P337 Intercooler Flight Test Comparison
Views:
44,056
Posted By
Walter Atkinson
Yes. Sounds like they may have forgotten to...
Yes.
Sounds like they may have forgotten to include the exhaust back pressure effects in their calculations. Not sure how they got their numbers.
Forum:
Messages
01-10-14, 06:27 PM
Replies:
30
P337 Intercooler Flight Test Comparison
Views:
44,056
Posted By
Walter Atkinson
The engine test stand data confirmed the math! ...
The engine test stand data confirmed the math! This is a very good "rule of thumb" calculation that can be off a very small amount as other factors do affect the mass airflow. Those differences are...
Forum:
Messages
01-07-14, 07:13 PM
Replies:
30
P337 Intercooler Flight Test Comparison
Views:
44,056
Posted By
Walter Atkinson
HP calculation ROP (mass...
HP calculation ROP (mass airflow):
(100+(((RPM-maxRPM)/100*2.5)+((MP-maxMP)*3.5)))/100*maxHP.
HP calculation LOP (FF):
NA engines = 14.9 * FF = HP
TC engines = 13.75 * FF = HP
Forum:
Messages
01-07-14, 07:05 PM
Replies:
30
P337 Intercooler Flight Test Comparison
Views:
44,056
Posted By
Walter Atkinson
From George Braly: INTERCOOLER EXPLANATION: For...
From George Braly:
INTERCOOLER EXPLANATION:
For a year, I spent a good portion of my time re-engineering an intercooler installation and obtaining FAA approval for the changes. Very careful...
Forum:
Messages
01-07-14, 07:02 PM
Replies:
30
P337 Intercooler Flight Test Comparison
Views:
44,056
Posted By
Walter Atkinson
Gentlemen: Based on the hard data rather than...
Gentlemen:
Based on the hard data rather than people's opinions, there is a tremendous amount of misinformation in this thread concerning HP determination and intercoolers. I will try to address as...
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