 | P-51D Mustang top speed?| Aviation Discuss P-51D Mustang top speed? in the World War II - Aviation forums; What was the top speed of the P-51D Mustang WITHOUT War Emergency Power?... |
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02-08-2006, 08:42 AM
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#1 | | Junior Member
Join Date: Feb 2006
Posts: 7
| P-51D Mustang top speed?
What was the top speed of the P-51D Mustang WITHOUT War Emergency Power? | 
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02-08-2006, 10:08 AM
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#2 | | Senior Member
Join Date: Oct 2005 Location: Londonium
Posts: 610
| In a straightline? and at what altitude? what temperature and air density? painted or unpaint? loaded with fuel and weapons or not? tail wind/headwind/crosswind? painted or not? waxed and filed down or not?
I'd guess somewhere between 360-385mph.
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02-08-2006, 12:39 PM
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#3 | | Junior Member
Join Date: Feb 2006
Posts: 7
| Sorry for my lack of exactitude. William Green says P-51D had a top speed of 437mph @ 25000 ft on 1,695hp war emergency power from the Packard V1650-7. What top speed range would be reasonable from the same aircraft on approximately 1,450hp @ about 20,000 ft? | |
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02-08-2006, 01:43 PM
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#4 | | Member
Join Date: Jul 2005
Posts: 40
| Quote: |
William Green says P-51D had a top speed of 437mph @ 25000 ft on 1,695hp war emergency power from the Packard V1650-7.
| I thought that 437 was al military power. At WEP the speed goes up to 448 mph. Can anybody confirm this? we talked about it in the P-51D vs Fw-190D9 discussion...
Regards. | |
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02-08-2006, 04:35 PM
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#5 | | Senior Member
Join Date: Jul 2005 Location: Japan
Posts: 450
| The 15 June, 1945 tests at Wright Field give:
War Emergency power (3000 RPM and 67" Hg): 442 mph at 26,000 feet
Military Power (3000 RPM and 61" Hg): 439 mph at 28,000 feet
Normal Rated power (2700 RPM and 46" Hg) 387 mph at 29,400 feet. | |
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02-09-2006, 05:10 PM
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#6 | | Senior Member
Join Date: Dec 2004 Location: Boise, Idaho
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| Quote: |
Originally Posted by Jabberwocky The 15 June, 1945 tests at Wright Field give:
War Emergency power (3000 RPM and 67" Hg): 442 mph at 26,000 feet
Military Power (3000 RPM and 61" Hg): 439 mph at 28,000 feet
Normal Rated power (2700 RPM and 46" Hg) 387 mph at 29,400 feet. | These are for a B model correct? How was it set up? If its without wing racks and weight of around 9,000lbs it is not trimmed for comparison but max possable. The D model ran about 437 normaly in WEP and 67". My TO-1 Handbook rates the Military power at 424 @ 30,oooft.
Can you post this test?
wmaxt | |
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02-09-2006, 08:09 PM
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#7 | | Senior Member
Join Date: Jul 2005 Location: Japan
Posts: 450
| Quote: |
Originally Posted by wmaxt Quote: |
Originally Posted by Jabberwocky The 15 June, 1945 tests at Wright Field give:
War Emergency power (3000 RPM and 67" Hg): 442 mph at 26,000 feet
Military Power (3000 RPM and 61" Hg): 439 mph at 28,000 feet
Normal Rated power (2700 RPM and 46" Hg) 387 mph at 29,400 feet. | These are for a B model correct? How was it set up? If its without wing racks and weight of around 9,000lbs it is not trimmed for comparison but max possable. The D model ran about 437 normaly in WEP and 67". My TO-1 Handbook rates the Military power at 424 @ 30,oooft.
Can you post this test?
wmaxt | It was for a P-51D. Serial number was 44-15342.
Take off weight was 9760 lbs, clean condition, with one external bomb rack on each wing.
You can see the report here: http://www.spitfireperformance.com/m...stangtest.html | |
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02-10-2006, 04:23 PM
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#8 | | Senior Member
Join Date: Dec 2004 Location: Boise, Idaho
Posts: 1,178
| Interesting site. Thats the first test of a P-51D in at least close to normal condition that shows it over 437mph.
Thanks
wmaxt | |
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02-10-2006, 04:32 PM
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#9 | | IP/Mech THE GREAT GAZOO
Join Date: Apr 2005 Location: Colorado, USA
Posts: 12,138
Country:  | That is a great site - notice how RPM is always referenced with Manifold Pressure....
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02-10-2006, 06:39 PM
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#10 | | Der Crewchief
Join Date: Nov 2004 Location: Ansbach, Germany
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Country:  | Cool thanks for the site.
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02-11-2006, 03:49 AM
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#11 | | Senior Member
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Country:  | Yep good site there.
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