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View Full Version : why does the corsair and hellcat overheat so much faster than the p-47?



fordfan25
04-24-2007, 12:15 AM
I have started playing PTO again and i have noticed the f4u and hellcat both over heat MUCH faster than the p-47.

alert_1
04-24-2007, 12:36 AM
cause Me109 overheats much faster then spit, it's matter of balance and secret success of whole IL2 series....

KIMURA
04-24-2007, 12:38 AM
Just a thought.

The R-2800-8 and R-2800-10 had mechanically linked chargers and which produce more heat and section modulus due to more mechanical moving parts, whereas the R-2800-59 was turbosupercharged.

alert_1
04-24-2007, 12:48 AM
The R-2800-8 and R-2800-10 had mechanically linked chargers which produce more heat due to more mechanical moving parts, whereas the R-2800-59 was turbosupercharged.
I would say that cylinder head temperature is much more singificant then temperature of mechanically driven compressor, but, again I might be wrong ...

VVS-Manuc
04-24-2007, 01:32 AM
don't make it too technical...it's just one of the flaws in the code of IL-2/PF http://forums.ubi.com/images/smilies/35.gif

stansdds
04-24-2007, 04:29 AM
Because the Hellcat and Corsair were USN planes and the P-47 was lend-leased to Russia, making it a far superior aircraft. http://forums.ubi.com/images/smilies/88.gif

TAW_Oilburner
04-24-2007, 05:05 AM
I think the temperature of all the pacific maps is the same as the desert maps.

MEGILE
04-24-2007, 05:22 AM
I prefer to ask, why does the P-47 overheat so much slower than the Hellcat and Corsair?

http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif

jermin122
04-24-2007, 05:48 AM
Originally posted by Megile:
I prefer to ask, why does the P-47 overheat so much slower than the Hellcat and Corsair?

http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif

http://forums.ubi.com/images/smilies/88.gif

Jaws2002
04-24-2007, 07:03 AM
Originally posted by Megile:
I prefer to ask, why does the P-47 overheat so much slower than the Hellcat and Corsair?

http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif

http://forums.ubi.com/images/smilies/59.gif

T_O_A_D
04-24-2007, 07:07 AM
Fly the 47 in the the same map and see if its still true. It may be the Map your flying on. PTO is warmer than ETO.

Bearcat99
04-24-2007, 07:19 AM
I find that if I keep my MP & RPM below redline I rarely overheat in anything.

JG53Frankyboy
04-24-2007, 07:27 AM
Originally posted by T_O_A_D:
Fly the 47 in the the same map and see if its still true. It may be the Map your flying on. PTO is warmer than ETO.

you can check maptemperatures at least with the He111 - look above your right shoulder http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif

anyway, isnt it also important how long a plane can fly in overheat condition without engine damage - IIRC in the F4U its around 10 minutes.............

and hopefully some of here will never fly a Cr.42 or D3A - they can fly with cooler open and full power all the time without engine overheat http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif

JG53Frankyboy
04-24-2007, 07:42 AM
quick look on the Okinawa map, flying around 1000m with F4U-1D and P-47D-27 , with full power and cooler closed:
between 3and4 minutes engine overheat appeares.
after around 10minutes more, engine damage begins.........................

LEXX_Luthor
04-24-2007, 10:39 AM
Turn engine overheat OFF, its always been porked in this sim, and then you don't have to fight with the cyclical Rad controls which lets you turn OFF the hud text messages pasted across the sky (except in some planes that offer visual Rad setting indicators like I-185 cowl flaps where Rad control is fun). And the AI turn overheat OFF too so...

Divine-Wind
04-24-2007, 11:43 AM
Originally posted by stansdds:
Because the Hellcat and Corsair were USN planes and the P-47 was lend-leased to Russia, making it a far superior aircraft. http://forums.ubi.com/images/smilies/88.gif
http://forums.ubi.com/images/smilies/88.gif

horseback
04-24-2007, 07:14 PM
The real reason is so obvious: the P-47 had prop cuffs!

Ooooorrrr...would you believe that faded Olive Drab and especially Natural Metal finishes reflect/dissipate heat better than Dark Sea Blue?

cheers

horseback

R_Target
04-24-2007, 08:01 PM
At least the F6F has a gauge for coolant temperature. http://forums.ubi.com/images/smilies/35.gif http://forums.ubi.com/groupee_common/emoticons/icon_confused.gif

AKA_TAGERT
04-24-2007, 08:04 PM
If I had to guess.. it would be the difference in temp.

TgD Thunderbolt56
04-25-2007, 06:05 AM
Originally posted by VVS-Manuc:
don't make it too technical...it's just one of the flaws in the code of IL-2/PF http://forums.ubi.com/images/smilies/35.gif

BINGO!

I'm sure it's just an oversight or programming discrepency. All three of these aircraft should be similar in their overheat thresholds. Same (for the most part) engines, and cowl flaps.

The P-47 should overheat over 5k more easily than it does so, that just adds to the discrepency, but it's not too big a deal as long as you're not trying to scramble off the carrier deck and power-climb to altitude and redline it to the target/combat area.

I've found that taking the time to form up with a couple friendlies and cruise to the combat area at about 85-90% throttle and 80% prop-pitch in supercharger stage 2 does just fine for me.


TB

ForkTailedDevil
04-25-2007, 07:02 AM
I think a bigger concern is the radiator isn't modeled on the Hellcat or the Corsair. Also the P-47 cockpit could use some freshing up.

TgD Thunderbolt56
04-25-2007, 07:07 AM
LOL...the R2800 is an aircooled engine...it has no radiator. http://forums.ubi.com/images/smilies/crackwhip.gif

JG53Frankyboy
04-25-2007, 07:13 AM
well, i belive, that in real world your crew chief had "killed" you when you would have used the powersettings that we use in game http://forums.ubi.com/groupee_common/emoticons/icon_biggrin.gif - when the engine would have worked so long in these setting to bring you back to him http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif

anyway, as i said, the P-47, F6F, F4U have the same "overheat" behaviour in game for me - flying them on the same map.............

Ernst_Rohr
04-25-2007, 07:38 AM
I dont often have overheat problems with the Corsair or P-47, but I can heat up a Hellcat pretty quickly if I dont watch the engine gages.

I find that the 47 is actually a pretty cool running plane, particularly in the ETO. PTO is much warmer, and the bird does better up high (where you should be anyway). On the deck, the 47 does heat up quickly, but you cant manage it by watching your manifold pressure and prop pitch.

I find the Hellcat far more finicky then the 47 or F4U.

MAILMAN------
04-25-2007, 03:12 PM
If you want to keep from overheating the Corsair and Hellcat, fly it at normal power settings:
2550 RPM (Prop Control around 93%) and MAP for the correct altitude and blower settings (quite a bit under red line. This will give you the maximum time in combat to run 2700 RPM and maximum MAP with Water Injection before overheating.