4.11 F4U Performance

[h0MbrE]

Originally Posted by JtD

I achieved 660 km/h full switch minus
- unlimited fuel in order to keep conditions constant
- cockpit off so I could see the speed
- no wind and turbulence as this adds a random element
in a F4U-1D, standard loadout, 100% fuel at 20000ft on the Crimea map, noon, all out, rads closed, 3rd gear charger.

I could maintain that for a while before the engine gave in. 660 km/h is 410 mph.

I'll give that a try. One thing I'm wondering is what you mean by "the engine gave in". How long did this take? The corsair was able to travel fairly decent distances at this speed without a problem. This is taken from Wikipedia:

"On 1 October, the XF4U-1 became the first single-engine U.S. fighter to fly faster than 400 mph (640 km/h) by setting an average ground speed of 405 miles per hour (652 km/h) during a flight from Stratford to Hartford."

That's over 50 miles from wheels up to wheels down. That is a pretty sustained distance and I'm sure they weren't blowing their engine to do it.

[h0MbrE]

Okay, I stand corrected on the atmospheric temperature but it also says the top speed was 431mph... should we dwell on that now as well? Besides you already dismissed the data in question when you made the little red arrows pointing to the fact that the aircraft used in that test was "the cleaned up version". And as I have pointed out twice since then:

This test was done early in 1943 on the earlier 1942 F4U-1s. After which the improvements were made and the C and D models were produced. Once again, refer to THIS document for the relevant test results on the 1944, 1945 C and D models we use in the sim.


What I want to know is why are you trying to nit-pick at every little thing you can find simply to dismiss the facts when YOU KNOW the F4U in the game have nowhere near the capability they should. The real world data is in front of you, please just fix the mistake.

[MadBlaster]

Originally Posted by h0MbrE

Okay, I stand corrected on the atmospheric temperature but it also says the top speed was 431mph... should we dwell on that now as well? What I want to know is why are you trying to nit-pick at every little thing you can find simply to dismiss the reality when YOU KNOW the F4U in the game have nowhere near the capability they should. The facts are in front of you, please just fix the mistake.

Dude, i haven't even tried the patch! I'm not nit picking. I just happen to have played this game long enough to figure out these guys know what they are doing. Do you really believe they haven't looked at all those reports you linked to like 1000 times over??? Believe me...they have.

Really, I'm just enjoying reading all this stuff today because CLoD was so overhyped and good old IL-2 had some secrets that finally it seems a lot of people are finally figuring out.

[IceFire]

Originally Posted by h0MbrE

Okay, I stand corrected on the atmospheric temperature but it also says the top speed was 431mph... should we dwell on that now as well? Besides you already dismissed the data in question when you made the little red arrows pointing to the fact that the aircraft used in that test was "the cleaned up version". And as I have pointed out twice since then:

This test was done early in 1943 on the earlier 1942 F4U-1s. After which the improvements were made and the C and D models were produced. Once again, refer to THIS document for the relevant test results on the 1944, 1945 C and D models we use in the sim.


What I want to know is why are you trying to nit-pick at every little thing you can find simply to dismiss the facts when YOU KNOW the F4U in the game have nowhere near the capability they should. The real world data is in front of you, please just fix the mistake.

Ok... I'm confused. I looked at the document that you've mentioned and the in-game version seems to match it performance wise very closely. Particularly around Combat Power at critical altitude and at sea level.

Here are the in-game results from 4.11 that I captured with a F4U-1D:
Loadout: Default
Fuel: 100%
Throttle: 110% (WEP/Watercooling Engaged)
Radiators: Closed
Map: Crimea
At Sea Level: 579kph TAS (or 360mph)
At 6100 meters/20,013 feet: 662 kph TAS (or 411mph)

The document you posted shows basically the same results:

Sea Level: 359mph
Critical Altitude (19,900 feet): 409mph

At sea level I was in first stage supercharger. At 6100 meters I was in third stage supercharger. Fuel mixture was 100% at all times.

That seems to be bang on the results of the document that you posted. I didn't test anything except Combat power. Am I missing something?

[Arrow]

Originally Posted by h0MbrE

I'll give that a try. One thing I'm wondering is what you mean by "the engine gave in". How long did this take? The corsair was able to travel fairly decent distances at this speed without a problem. This is taken from Wikipedia:

"On 1 October, the XF4U-1 became the first single-engine U.S. fighter to fly faster than 400 mph (640 km/h) by setting an average ground speed of 405 miles per hour (652 km/h) during a flight from Stratford to Hartford."

That's over 50 miles from wheels up to wheels down. That is a pretty sustained distance and I'm sure they weren't blowing their engine to do it.

XF4U-1 is hardly a battle ready aircraft with wepons and all the imperfections of mass series production. Record setting aircraft are usually stripped of all unecessary equipment, perfectly maintained and aerodynamically cleanedw, which is hardly the case of combat aircraft that never achieve factory data and hardly so data of some record setting aircraft. I wonder what the result would be with a corsair having flown 5 missions in PTO loaded with guns, amno and maintained in the field.