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FM/DM threads Everything about FM/DM in CoD

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Old 07-14-2012, 03:25 PM
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The first versions of a standardised atmosphere model between nations was in the 1920's as far as I know, almost certainly those nations would have included the bulk of Europe.

Here check this NASA article....

http://ntrs.nasa.gov/archive/nasa/ca...2002153481.pdf
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Old 07-14-2012, 03:58 PM
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Quote:
Originally Posted by bongodriver View Post
The first versions of a standardised atmosphere model between nations was in the 1920's as far as I know, almost certainly those nations would have included the bulk of Europe.

Here check this NASA article....

http://ntrs.nasa.gov/archive/nasa/ca...2002153481.pdf
Thanks bongo, Always happy to be corrected by some evidence!

56RAF_phoenix

[EDIT] P.S. As is often the case with the English Internet, it's rather US centric. Have you got anything on British equivalents?

Last edited by phoenix1963; 07-14-2012 at 04:14 PM. Reason: additional question
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Old 07-14-2012, 04:18 PM
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Well, you just avoid admiting that you are wrong.
Why am I going to pursue a pointless argument. The engine sees density, that is a basic fact.

You are going to claim you are correct despite the fact every other word in your argument is "temperature". Really??

It is retarded.

Again, call Lycoming.....

Their customer service will answer your questions and you can argue with them and the FAA.
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Old 07-14-2012, 07:27 PM
MiG-3U MiG-3U is offline
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Quote:
Originally Posted by Crumpp View Post
Why am I going to pursue a pointless argument. The engine sees density, that is a basic fact.

You are going to claim you are correct despite the fact every other word in your argument is "temperature". Really??

It is retarded.

Again, call Lycoming.....

Their customer service will answer your questions and you can argue with them and the FAA.
No one denies that engine power depends on density on the manifolds, however, the argument was if the FTH depends on the density altitude or the pressure altitude in the case of the Merlin. As pointed out earlier, the supercharger of the Merlin keeps constant pressure up to the FTH regardless the density of the air (indicated by temperature), so it's clear that the FTH depends on pressure altitude, just like in the case of the radial engines with similar superchargers in the USAF handbook.

I end this discussion here, you just keep flossing a dead horse...

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Old 07-14-2012, 05:58 PM
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Quote:
Originally Posted by phoenix1963 View Post
Thanks bongo, Always happy to be corrected by some evidence!

56RAF_phoenix

[EDIT] P.S. As is often the case with the English Internet, it's rather US centric. Have you got anything on British equivalents?

I don't, I face much the same trouble, but if you are a Physicist then perhaps you have better access to stuff from the scientific community, I dare say the British equvalents are available...just not so much on t'interweb.
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