Aces High Bulletin Board
General Forums => Aces High General Discussion => Topic started by: Guppy35 on October 13, 2011, 02:44:01 PM
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P40N is a fighter bomber. 2 DTs possible, 3 bombs possible. 4 and 6 gun load outs. P40F has the 4 and 6 gun load out as well.
Nice job with the variety of choices on the 40s gents :aok
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What happened to the P-40B?
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What happened to the P-40B?
Renamed to P-40C.
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Besides the loadouts, what are the differences between the N and F models? Both are Merlin engines? :headscratch:
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N has an Allison and more power, longer fuselage, cut down fuselage for better visibility.
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Couple quick questions on the F and N. I'd post the speed and climb charts but am posting from my iPhone. The F is better at speed and and alt, and climbs better? Is this correct? Even though the N is 300lbs lighter?
:headscratch:
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Besides the loadouts, what are the differences between the N and F models? Both are Merlin engines? :headscratch:
F = MTO USAAF,
N = CBI, PTO and RAF in MTO
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Couple quick questions on the F and N. I'd post the speed and climb charts but am posting from my iPhone. The F is better at speed and and alt, and climbs better? Is this correct? Even though the N is 300lbs lighter?
:headscratch:
this is a decent source for that kind of information...not the end all authority by any means but gives a good idea of general specs.
http://www.p40warhawk.com/Variants/P-40F.htm (http://www.p40warhawk.com/Variants/P-40F.htm)
The P-40F was powered by a Packard-built Merlin V-1650-1 twelve-cylinder Vee liquid-cooled engine rated at 1300 hp for takeoff and 1120 hp at 18,500 feet. Maximum speed was 320 mph at 5000 feet, 340 mph at 10,000 feet, 352 mph at 15,000 feet, and 364 mph at 10,000 feet. An altitude of 10,000 feet could be attained in 4.5 minutes, and an altitude of 20,000 feet could be reached in 11.6 minutes.
http://www.p40warhawk.com/Variants/P-40N.htm (http://www.p40warhawk.com/Variants/P-40N.htm)
The first production block was the P-40N-1-CU. It appeared in March of 1943, still powered by the Allison V-1710-81 engine, but with 122 gallons of internal fuel and a generally lighter structure than its predecessors. With weight reduced to 6000 pounds empty, 7400 pounds gross, and 8850 pounds maximum, the N-1 was the fastest P-40 service variant and was intended for high altitude combat. Maximum speed was 378 mph at 10,500 feet and service ceiling was 38,000 feet. An altitude of 15,000 feet could be attained in 6.7 minutes. Armament consisted of four 0.50-inch machine guns in the wings. Four hundred P-40N-1-CUs were built.
The P-40N-5-CU variant introduced a modified cockpit canopy with a frameless sliding hood and a deeper, squared-off rectangular aft transparent section to improve the rearward view. This cockpit canopy was retained for all the rest of the production blocks of the N version. The N-5 version restored the full six-gun wing armament, since pilots had complained that four guns were insufficient. Underwing racks were fitted for bombs or drop tanks, increasing external stores capacity to 1500 pounds. The new heavier gross weight of 8350 pounds limited top speed to 350 mph at 16,400 feet and service ceiling to 31,000 feet. An altitude of 14,000 feet could be attained in 7.3 minutes. Range was 340 miles with a 500-pound bomb underneath the fuselage. Three drop tanks promised a ferry range of up to 3100 miles at 198 mph.
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holy crap from the sound of it it makes me think the update it out. Sure as crap, mine is updating!!!
I CANNOT WAIT TO FLY THE N
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Seems to me that the F is the best of the P40's in terms of dogfighting, etc. The Merlin engine seems to be able to pull it through a turn better, not to mention the wee bit extra climb and the 10-20mph faster speeds. The N isnt far behind, really. I have not done much for guns other than the 6 gun/large ammo load out. I'm curios if there is much of a difference in plane performance.
The P40E no longer has WEP and has had its speeds adjusted. Job well done. :salute
The P40B is now he P40C, which if one reads up on the matter the only real differences is the addition of the bomb and DT shackle under the fuselage. Job well done. :salute
Oh, and the flight model has been updated. They obviously handle differently. I did for the first time, rip off elevators and wings in a P40, I started up at 20k and dove hard, once to 550mph or so the elevators went ripping off and a second or 2 later a wing broke loose. That was on the P40F.
Job well done on the P40's, HTC!!! :salute
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I dove a P-40N and its wings came off in the pull out. Probably about 450mph.
The roll rate seems lower than it used to be, though I can't say for sure as I didn't spend much time in P-40s.
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Seems to me that the F is the best of the P40's in terms of dogfighting, etc. The Merlin engine seems to be able to pull it through a turn better, not to mention the wee bit extra climb and the 10-20mph faster speeds. The N isnt far behind, really. I have not done much for guns other than the 6 gun/large ammo load out. I'm curios if there is much of a difference in plane performance.
(http://bbs.hitechcreations.com/scores/genchart.php?p1=118&p2=120&pw=1>ype=2)
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Couple quick questions on the F and N. I'd post the speed and climb charts but am posting from my iPhone. The F is better at speed and and alt, and climbs better? Is this correct? Even though the N is 300lbs lighter?
:headscratch:
Lots of info here Jr.
http://www.raafwarbirds.org.au/targetvraaf/p40_archive/p40_data.htm (http://www.raafwarbirds.org.au/targetvraaf/p40_archive/p40_data.htm)
and here
http://www.raafwarbirds.org.au/targetvraaf/p40_archive/pdfs/ (http://www.raafwarbirds.org.au/targetvraaf/p40_archive/pdfs/)
:cheers:
:old: Pops,
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Looks like the P-40N is the dogfighter version below 10k when using WEP and its 325 lbs lighter than the F with a slightly better hp output to boot and a clearly better climb rate (see wmaker post above) with similar speeds. The F has an advantage at higher alts I think where it was intended to operate. Neither is leaps and bounds over the other but the N looks like the winner for wing loading, acceleration and hp down low when boosting at its max WEP of 55 inches. The 4 gun package I think would be the one to pick for a fighter vs fighter mission on either.
Tried em both out for a few quick runs they are fun.
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Which engine is the P40N modeled with? /81 or /99
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I put in a bit of time in the N. It's nice. Dives very well, I kept up with a P47N with minimal corner cutting through a few passes on a base.
Very stable aircraft.
Wiley.
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(http://bbs.hitechcreations.com/scores/genchart.php?p1=118&p2=120&pw=1>ype=2)
Check again w/o WEP. Anyone who uses WEP as a crutch doesn't seem to forget that WEP is not constant. :headscratch:
Also, my observation was done when the aircraft were the nearly the same weight w/o WEP. Check that stat, too.
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IMHO, the N is a much more stable platform than the F. And that's coming from a Merlin lover. Although they are really slow to build E, thats just a P-40 problem in general. the 1,500lbs of ords is a plus too. The -N is my new jabo
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Love them, love them, love them. :aok Thanks HTC.
Ya know, maybe another P-51 variant, definetley another B-17, and AH is sitting purty for that Red Tails movie comming out next year.
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Did some tests. Both a/c with 6 guns and max ammo. No shackles or DTs.
With both a/c carrying 148 gallons the N model is 369 lbs lighter. S.L. speeds MIL is 287 for the P-40N and 297 for the P-40F. So the F is 10mph faster. The F also has a very slight climb rate advantage in MIL, 100 fpm? This is assuming an equal armament and fuel load for both a/c.
WEP comparisons; the P-40N does 313 and the P-40F does 304. So the N is 9 mph faster. The N has @ 600 fpm climb rate advantage in that category, and of course retains its weight advantage.
So all that into account in the dogfighter catgeory I think the N edges it out slightly with the lighter weight and better WEP #s. In the end it would be the load carried and the pilot that would decide it and I guess thats no surprise. From the data it does not appeear that either is vastly superior to the other. P-40 lovers will give both versions their share of fans and like them for different reasons. Its an interesting comparison.