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Author Topic: Jugs reloaded (P-47D revised ordnance)  (Read 32228 times)

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Pursuivant

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Re: P-47D revised ordnance
« Reply #12 on: October 30, 2011, 04:07:50 PM »

So APIT does more damage I take it? Does it normally have tracer and ball then?

APIT just does slightly different damage. It combines some of the armor-piercing outer core of an AP (armor-piercing) round, the tracer aspects of Tracer and some of the incendiary action of an Incendiary.

It's good for taking out lightly armored targets like fighter aircraft and light armored vehicles. I also believe that it has somewhat closer ballistic performance to ball (regular), AP or API (Armor Piercing Incendiary) than regular tracer, and obviously has better performance than tracer if it hits its target.

The USAAF used a lot of APIT and API during ground-attack missions in the ETO and MTO towards the end of the war, since it worked well against unarmored and lightly armored vehicles. It also worked fairly well against fighter aircraft, which is mostly what the U.S. encountered over Germany. By contrast, the Axis encountered more bombers, so they needed heavier-hitting guns like 20mm or 30mm, which fired shells which carried a high explosive charge.

For heavier prey, like tanks, I believe that straight AP rounds were preferred, with some tracer or APIT mixed in.

For unarmored targets, ball (i.e., regular) ammo was fine. I believe that in the Pacific, U.S. aircraft were just armed with a combination of ball, incendiary and tracer or APIT, which worked better to set unarmored Japanese planes alight.

Discussion of WW2 era U.S. fighter guns here:

  http://www.thehighroad.org/archive/index.php/t-472212.html

Probably the best, and most commonly referenced web page on WW2 era aerial guns here:

  http://www.quarry.nildram.co.uk/WW2guneffect.htm
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Joberg

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Re: P-47D revised ordnance
« Reply #13 on: October 30, 2011, 05:10:50 PM »

Thanks
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Goanna

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Re: P-47D revised ordnance
« Reply #14 on: October 30, 2011, 06:12:03 PM »

Seems to varying figures available, depends on where one looks  :) Couple of links I found seem to suggest that 425 rounds was the norm and one says from the D model onwards was reduced to 267 if carrying a 1000lb bomb or external fuel tanks.

425 - here.
267 with 1000lb here.

Cheers

Goanna
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Thunda

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Re: P-47D revised ordnance
« Reply #15 on: October 31, 2011, 09:09:24 AM »

Nice looking mod, Mike- lookin forward to it.
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SAS~Storebror

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Re: Jugs reloaded (P-47D revised ordnance)
« Reply #16 on: October 31, 2011, 09:27:12 AM »

*Bump*
First WIP version available.
Please check first post of this thread.

Best regards - Mike
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Thunda

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Re: Jugs reloaded (P-47D revised ordnance)
« Reply #17 on: October 31, 2011, 09:52:01 AM »

Niiiice- particularly liking the removal of the wing pylons when not in use.

Thanks,

Thunda
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tooslow

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Re: Jugs reloaded (P-47D revised ordnance)
« Reply #18 on: October 31, 2011, 04:32:16 PM »

Mike,

I only have a few references for the P-47 and they all are from publications in the late 1950's or early 1960's ...

The first three references are all from the Book "War Planes of the Second World War" Volume 4 by William Greene, 1961


For the P-47B&C indicating 267 rpg for 8 50 cals:





For the P-47D series, near the bottom of the right hand column it says maximum ammo load was increased to 425 rpg, but is reduced to 267 rpg with a full ordinance load:





For the P-47D series indicating either 267 or 425 rpg:




Below is from the Book "Famous Fighters of World War II" published in 1957

For the P-47D-25-RE indicating either 267 or 425 rpg:





Below is from the Profile Publications Number 7, no date given, but probably late 50's or early 60's



This one shows the usual 267 or 425 rpg in the table at the bottom of the page, but the text above says that the ammo load was 300 rpg, but could be increased to 425 rpg.  So the text says 300 normal and the table indicates 267 normal.  I guess they didn't proof read this very good, but no where does it even mention 200 rpg that is in the default P-47 in the Sim.

Hope this helps .. TS



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SAS~Storebror

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Re: Jugs reloaded (P-47D revised ordnance)
« Reply #19 on: November 01, 2011, 01:46:03 AM »

Thank you very much for the valueable information TS.
It turns out that most sources state that either 425 or 267 RPG have been used.
Those sources which mention a reduced ammo load in case of full ordnance seem most trustworthy, since this absolutely makes sense:
The -D15 and later Jugs featured a new "universal" wing design which implemented wet wing hardpoints. In order to use those for droptanks, a depression system had to be implemented which was fed by the engine's inlet manifold vacuum. Since the latter wasn't steady in any way, some depressure accumulator had to be placed near the wet hardpoints. So besides the weight issue with full load, it's likely that there's simply been insufficient space inside the wing to hold both the depressure system with it's accumulators and the full ammo load.
That said, it looks like we're on spot with the ammo count of this mod.

Best regards - Mike
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F22-Raptor-2006

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Re: Jugs reloaded (P-47D revised ordnance)
« Reply #20 on: November 01, 2011, 05:12:49 AM »

Looks good storebror :)
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hguderian

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Re: Jugs reloaded (P-47D revised ordnance)
« Reply #21 on: November 01, 2011, 05:21:56 AM »

Thank You Storebror!! Really nice work!

About de-synchronized guns...is it possible to do that for the others AC also?

Regards
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SAS~Malone

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Re: Jugs reloaded (P-47D revised ordnance)
« Reply #22 on: November 01, 2011, 06:00:12 AM »

this is great, Mike...these Jugs have needed a loadout re-work since forever, thanks mate! :D
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SAS~Storebror

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Re: Jugs reloaded (P-47D revised ordnance)
« Reply #23 on: November 01, 2011, 06:14:30 AM »

flak&hguderian, I know we all have to get used to this first, nevertheless may I take the liberty to point you to the bottom of the first post, especially this part:


Don't worry, we do listen, but you won't see me enter any kind of subplot discussion here.

Best regards - Mike
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