Author Topic: AH2 F4U-4 is a real monster  (Read 1633 times)

Offline GRUNHERZ

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AH2 F4U-4 is a real monster
« Reply #15 on: September 11, 2004, 05:40:55 PM »
Quote
Originally posted by Mitsu
I can't belieave the P-38 was so turnable.


High wingloading is apparently not a factor in US planes... Certainly does not seem to bacdly affect the manouverablity of P38 and P47...  Especailly P47.. :)

Offline Urchin

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AH2 F4U-4 is a real monster
« Reply #16 on: September 11, 2004, 08:07:41 PM »
Think it has more to do with the flaps for the U.S. planes.. they add surface area to the wing, lowering the wingloading.  

Of course, I don't know exactly how much they do this, nor how to figure it out.

Offline GRUNHERZ

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AH2 F4U-4 is a real monster
« Reply #17 on: September 11, 2004, 09:09:51 PM »
Quote
Originally posted by Urchin
Think it has more to do with the flaps for the U.S. planes.. they add surface area to the wing, lowering the wingloading.  

Of course, I don't know exactly how much they do this, nor how to figure it out.


Not on the 51 - it has the same type of flap as Bf109.

But lets take the P47 example - it has a fowler type flap and it gets extremly manouverable for its wing loading with them down.

Would you agree?

Do you think you get the same huge increse in manouverability when you lower niki flaps?

Offline bozon

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AH2 F4U-4 is a real monster
« Reply #18 on: September 11, 2004, 09:55:23 PM »
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But lets take the P47 example - it has a fowler type flap and it gets extremly manouverable for its wing loading with them down.

true, but it can only fight down hill with them. They suck up lots of energy. As they should.

Another reason for the P47 "manuverability" is that it's a friggin massive brick with eliptical wings. This makes it very stable near the stall, but it will turn as nimbly as an 80 year old lady driving a truck. OK for a scissor fight, certain death in a turning fight.

This apply to most of the US iron. The F4u and F6F enjoy the benifit of extremely low stall speeds.
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Offline Widewing

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AH2 F4U-4 is a real monster
« Reply #19 on: September 11, 2004, 11:19:27 PM »
Quote
Originally posted by GRUNHERZ

But lets take the P47 example - it has a fowler type flap and it gets extremly manouverable for its wing loading with them down.


They're not Fowler flaps, but NACA slotted flaps, and very efficient.
They move aft, and then pivot down.

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Widewing
My regards,

Widewing

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Offline Widewing

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AH2 F4U-4 is a real monster
« Reply #20 on: September 11, 2004, 11:26:10 PM »
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Originally posted by bozon
true, but it can only fight down hill with them. They suck up lots of energy. As they should.


I fly the P-47 in the vertical with flaps out often. That 2,600 hp engine on the D-40 provides plenty of power. Add to that, superior stability at low speed and the D-40 can slice and dice with many supposedly more maneuverable fighters. I train at this type of fight quite a bit.

Just remember, never take more than 50% internal fuel. Take a drop tank or two if you need to get somewhere. And take just six guns. If you get in a scrum, you can lighten up to under 13,000 pounds. A D-40 that light is a delight, and can hold its own very well.

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Widewing
My regards,

Widewing

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Offline Widewing

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AH2 F4U-4 is a real monster
« Reply #21 on: September 11, 2004, 11:32:41 PM »
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Originally posted by GScholz
Today I found out that the F4U-4 isn't a great diver either. I caught one in a La-5 today, and initially he was opening the distance, but after about 5-7 seconds I started gaining and shot him down. The F4U-4 probably has more control in high-speed dives though.


Sounds like you found a putz. The plane is only as good as the peawit flying it. I once chased down and killed an F4U-4 while flying an SBD. He misjudged my E state (about 420 mph).

Both the 190s and the F4Us use the same NACA airfoil. Corsairs dive very well, you can reach 600 mph and not break it.

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Widewing
My regards,

Widewing

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Offline bozon

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AH2 F4U-4 is a real monster
« Reply #22 on: September 12, 2004, 07:42:56 AM »
by "fighting down hill" I ment that the average altitude of the fight will be droping quickly. Pulling out the flaps to tighten a turn (not in order to hang on the prop at 100 mph) means you are willing to throw away ALOT of E to gain a little better turn rate/radius.

In order to keep a sustained tight turn you have to keep your speed up by making a nose low turn. If you let your speed drop too low you will not stall but the turn rate will be horrible.

Bozon
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Click!>> "So, you want to fly the wooden wonder" - <<click!
the almost incomplete and not entirely inaccurate guide to the AH Mosquito.
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Offline simshell

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AH2 F4U-4 is a real monster
« Reply #23 on: September 13, 2004, 01:27:40 AM »
May i ask widewing how you got a SBD to 420mph?
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Offline Kweassa

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AH2 F4U-4 is a real monster
« Reply #24 on: September 13, 2004, 02:44:45 AM »
Quote
by "fighting down hill" I ment that the average altitude of the fight will be droping quickly. Pulling out the flaps to tighten a turn (not in order to hang on the prop at 100 mph) means you are willing to throw away ALOT of E to gain a little better turn rate/radius.


 Doesn't matter.

 When both planes drop down to low E the stability of the P-47 will enable to fish-flop its way to victory.

 At least, having flown the Bf109 since version 1.05, there's no way I'm ever engaging a P-47 or a P-51 in low speed maneuvering ever again. The AH2 P-47 out turns all 109Gs at all alts all speeds all situations.
« Last Edit: September 13, 2004, 02:49:35 AM by Kweassa »

Offline GRUNHERZ

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AH2 F4U-4 is a real monster
« Reply #25 on: September 13, 2004, 03:11:21 AM »
Bf109 was noted for its low speed stability..  There was a recent test where tyey flew a restored G10 (no MW50) aginst a P51D and they said the 109 was better and prefered in a low speed fight..  Even eric brown said that a captured and prolly underperforming 109G6 was delightful at low speed..  

And I'm just amazed by the crazy manouverabilty of P47 at low speed in this game..
« Last Edit: September 13, 2004, 03:13:45 AM by GRUNHERZ »

Offline bozon

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AH2 F4U-4 is a real monster
« Reply #26 on: September 13, 2004, 09:09:42 AM »
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Originally posted by Kweassa
At least, having flown the Bf109 since version 1.05, there's no way I'm ever engaging a P-47 or a P-51 in low speed maneuvering ever again. The AH2 P-47 out turns all 109Gs at all alts all speeds all situations.

Well, I've only been flying the jug since version 1.08, so I guess I just suck. If a 109 will enter a rolling scissor fight starting from high speed I'll beat it by stepping on the breaks, pulling out the flaps, opening the canopy and flaping my hands while rolling. That is possible as long as we have speed to start with and we dont turn much.
 
if we start slow or get into a sustained circle fight, I will die if the 109 pilot is of any worth.

I flew the G2 alot during the beta. it felt great when turning. the slats created some instability while deploying though. I don't know if that was fixed.

Bozon
Mosquito VI - twice the spitfire, four times the ENY.

Click!>> "So, you want to fly the wooden wonder" - <<click!
the almost incomplete and not entirely inaccurate guide to the AH Mosquito.
https://www.youtube.com/watch?v=RGOWswdzGQs

Offline F4UDOA

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AH2 F4U-4 is a real monster
« Reply #27 on: September 13, 2004, 09:32:14 AM »
Grunherz,

I am not a big P-47 fan but the thing about that bird is that if you start pulling things off of it like fuel and guns the wingloading goes way down.  

14,500lbs fully loaded with 8 guns and full fuel gives it wing loading of 48.3.

370 gallons of fuel!! Weighting 2,200lbs! At 25% fuel (555lbs) the P-47 now weights 12,850lbs.

Now get rid of 2 .50 cal guns. 145lbs total and the reduced ammo load which acounts for another 166lbs at least.

And viola

12,539lbs with wing loading of 41.79 with plenty of ammo and significnant duration with almost 100 gallons of fuel on board.

Superbolt.

Offline Kweassa

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AH2 F4U-4 is a real monster
« Reply #28 on: September 13, 2004, 10:26:37 AM »
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Well, I've only been flying the jug since version 1.08, so I guess I just suck. If a 109 will enter a rolling scissor fight starting from high speed I'll beat it by stepping on the breaks, pulling out the flaps, opening the canopy and flaping my hands while rolling. That is possible as long as we have speed to start with and we dont turn much.


 I'm pretty sure you are aware of the standard procedures in rolling scissors bozon. The basic aim of this maneuver, is to overshoot the enemy and evade bullets by barrel rolling.

 According to the danger levels, a pilot may have to pull a wider and/or slower barrel roll, with harsher and more sharper angle in whipping the nose around by rudder assists.

 The problem is, assuming co-E conditions, at least to the extent of my own skills pitted against all kinds of P-47 pilots from noobs to experts, no 109G in AH2 can pull enough angle, whip the nose, slow down, and pull off a barrel roll at the same time.

 The P-47s can do that. So can the P-51s. The 109G cannot.


Quote
If we start slow or get into a sustained circle fight, I will die if the 109 pilot is of any worth.


 I used to think so, too. Not anymore in AH2. For about two circles the 109 may stay with a P-47D. Then comes the really low speed, harsh maneuvering phase, under 200mph.

 At these speeds as you know, turning a tighter radius and keeping it there is often more important than the turning speed or the turn rate itself.

 The P-47 can keep the harsh AoA, assisted by flaps and rudders. It slow, but it chugs on, keeping its nose up like a cobra. The 109G cannot. If I stay above 200mph, my turn radius is too wide so I cannot follow the turn. But if I drop my own speed to use my own flaps, the plane suddenly turns into a pig.

 The plane just reached its point where it could start using its own flaps - which is about 90mph higher than the stall speed. I'm pulling only about 15% of the stick at 180mph, first notch of flaps down and the plane starts to snaproll and shake already. While destabilized the nose drops down, the plane accelerates, and the flaps retract. I organize things out pull the nose up again, kick rudder and engage flaps again - by this time I've lost about 30 degrees amount of ground in the turn fight.

 Eventually, the P-47 wins.

 Okay, I'm not a hot-shot LW fighter like Nath or Urchin or Grunherz. But as much, I don't always face the best of the P-47 pilots neither. Dear lord HT, is outturning a P-47 supposed to be this hard in a Bf109G?

Quote
I flew the G2 alot during the beta. it felt great when turning. the slats created some instability while deploying though. I don't know if that was fixed.


 Then you'd remember the weird stalls bozon - something which people referred to as "aileron reversals" or something. The sort where you arrive at stall, and the plane would snap roll to one direction. Applying ailerons to stop it would cause the plane to snaproll into the other direction.. and consequentially the plane would rock around in its roll axis left and right, as it augers.

 Well, I don't see that happening in P-47s or P-51s anymore, but the 109s and 190s still have it. Exactly same behavior with the C.202 and the C.205.
« Last Edit: September 13, 2004, 10:52:16 AM by Kweassa »

Offline Karnak

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AH2 F4U-4 is a real monster
« Reply #29 on: September 13, 2004, 10:42:54 AM »
Quote
Originally posted by F4UDOA
12,539lbs with wing loading of 41.79 with plenty of ammo and significnant duration with almost 100 gallons of fuel on board.

7 or 8 minutes is significant duration?  Your definition is different than mine.

Unless the D-40 has significantly greater tankage than the D-25 or D-11 as those are the two I fly when I take a P-47.  50% fuel on those was nowhere near adequate.
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