Author Topic: WORLD WAR 2 FIGHTER ARMAMENT EFFECTIVENESS. Just an FYI-  (Read 1917 times)

Offline SmokinLoon

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Re: WORLD WAR 2 FIGHTER ARMAMENT EFFECTIVENESS. Just an FYI-
« Reply #15 on: June 20, 2011, 07:18:19 AM »
880m/s is 880m/s.  That one is 12.7mm and the other is 20mm and heavier doesn't change the fact that they are both ~880m/s at the muzzle.  This is comparing the Browning M2 .50 to the Hispano Mk II.

At 200 yards, 90 degree impact, the .50 has 20mm of armor penetration, the Hispano II AP has 27mm of armor penetration in the same conditions.

and with 2 different types of projectiles.
Proud grandson of the late Lt. Col. Darrell M. "Bud" Gray, USAF (ret.), B24D pilot, 5th BG/72nd BS. 28 combat missions within the "slot", PTO.

Offline Grendel

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Re: WORLD WAR 2 FIGHTER ARMAMENT EFFECTIVENESS. Just an FYI-
« Reply #16 on: June 20, 2011, 10:51:51 AM »

but in comparison,take the bigger 20mm and do the same thing.now you are putting bigger holes in walls and people,but the penetration might not be as good as the 50.that is because the 20mm is alot heavier and slower(even more so at long dist.)its all about kinetic energy and the powder of the shell you are using

Order these books, read them and you will know the basics of how weapons and their ammuniation work IRL:

http://www.bookfinder.com/dir/i/Rapid_Fire-The_Development_of_Automatic_Cannon,_Heavy_Machine-Guns_and_Their/1840374357/

http://users.telenet.be/Emmanuel.Gustin/volume1/index.html

http://users.telenet.be/Emmanuel.Gustin/volume2/index.html

http://users.telenet.be/Emmanuel.Gustin/volume3/index.html


Offline IrishOne

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Re: WORLD WAR 2 FIGHTER ARMAMENT EFFECTIVENESS. Just an FYI-
« Reply #17 on: June 20, 2011, 11:43:46 AM »
You play il2?


What do u like better?


Aces High, hands down.     i usually go to IL2 when i feel like flying in an actual ww2 setting, spits vs 109s, 190s vs yaks, jets vs buffs, and so on and so forth.   i like earning the medals and trying to win the war for germany.   i'd say i play AH 95% of the time im at the 'puter, maybe 2-3% playing IL2, and the rest is totally pron tyme  :bolt:
-AoM-

Offline save

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Re: WORLD WAR 2 FIGHTER ARMAMENT EFFECTIVENESS. Just an FYI-
« Reply #18 on: June 20, 2011, 11:51:20 AM »
other input for later plane designs during ww2 :

http://users.skynet.be/Emmanuel.Gustin/fgun/fgun-fi.html
My ammo last for 6 Lancasters, or one Yak3.
"And the Yak 3 ,aka the "flying Yamato"..."
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Offline SmokinLoon

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Re: WORLD WAR 2 FIGHTER ARMAMENT EFFECTIVENESS. Just an FYI-
« Reply #19 on: June 20, 2011, 12:04:08 PM »

Aces High, hands down.     i usually go to IL2 when i feel like flying in an actual ww2 setting, spits vs 109s, 190s vs yaks, jets vs buffs, and so on and so forth.   i like earning the medals and trying to win the war for germany.   i'd say i play AH 95% of the time im at the 'puter, maybe 2-3% playing IL2, and the rest is totally pron tyme  :bolt:

That isnt a bad ratio, really.  Nothing to be ashamed of.  Ever wonder why HTC team takes so long between versions???   :D
Proud grandson of the late Lt. Col. Darrell M. "Bud" Gray, USAF (ret.), B24D pilot, 5th BG/72nd BS. 28 combat missions within the "slot", PTO.

Offline BoilerDown

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Re: WORLD WAR 2 FIGHTER ARMAMENT EFFECTIVENESS. Just an FYI-
« Reply #20 on: June 20, 2011, 01:47:43 PM »
That isnt a bad ratio, really.  Nothing to be ashamed of.  Ever wonder why HTC team takes so long between versions???   :D
Cause Hitech is busy playing WoW.   :lol
Boildown

This is the Captain.  We have a lil' problem with our entry sequence so we may experience some slight turbulence and then... explode.

Boildown is Twitching: http://www.twitch.tv/boildown

Offline Karnak

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Re: WORLD WAR 2 FIGHTER ARMAMENT EFFECTIVENESS. Just an FYI-
« Reply #21 on: June 20, 2011, 03:09:22 PM »
and with 2 different types of projectiles.
I am sorry, but I don't follow you there.  That is probably API for the .50 and is AP for the 20mm.  Now, the Hispano was usually loaded with HE, so it wouldn't have that penetration, but would explode instead.

http://www.youtube.com/watch?v=-p8h43TRXwk
Petals floating by,
      Drift through my woman's hand,
             As she remembers me-

Offline SmokinLoon

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Re: WORLD WAR 2 FIGHTER ARMAMENT EFFECTIVENESS. Just an FYI-
« Reply #22 on: June 20, 2011, 03:45:37 PM »
I am sorry, but I don't follow you there.  That is probably API for the .50 and is AP for the 20mm.  Now, the Hispano was usually loaded with HE, so it wouldn't have that penetration, but would explode instead.

http://www.youtube.com/watch?v=-p8h43TRXwk

Do we have any 20mm AP in the AH???  According to the damage spreadsheet I have, all of the 20mm ammo appears to have HE projectiles, not AP.  Then again, HTC has 37mm producing the same damage regardless if it AP or HE.   :headscratch: 

I can not even think of any US or British aircraft in WWII that used 20mm AP ammo.
Proud grandson of the late Lt. Col. Darrell M. "Bud" Gray, USAF (ret.), B24D pilot, 5th BG/72nd BS. 28 combat missions within the "slot", PTO.

Offline Karnak

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Re: WORLD WAR 2 FIGHTER ARMAMENT EFFECTIVENESS. Just an FYI-
« Reply #23 on: June 20, 2011, 03:59:57 PM »
No, we do not.

I wasn't suggesting that we did.  I was responding to the claim that the .50 had better armor penetration because the 20mm rounds were heavier and slower.  There are some people in this thread basically making stuff up to try to say the .50 hit as hard as a 20mm.

As I recall, the Hispano HE rounds delayed their blast a bit longer than did the German HE rounds and tended to blow up inside the structure rather than on the skin.  They also produced larger, but fewer, shrapnel chunks.
Petals floating by,
      Drift through my woman's hand,
             As she remembers me-

Offline Charge

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Re: WORLD WAR 2 FIGHTER ARMAMENT EFFECTIVENESS. Just an FYI-
« Reply #24 on: June 20, 2011, 04:57:55 PM »
Maybe the confusion is caused by the fact that .50 has almost as good armour penetration as a 20mm AP round. The total KE these rounds have when they hit is totally different, however, and is not indicated by their penetration capability.

-C+
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Offline bustr

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bustr - POTW 1st Wing


This is like the old joke that voters are harsher to their beer brewer if he has an outage, than their politicians after raising their taxes. Death and taxes are certain but, fun and sex is only now.

Offline SmokinLoon

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Re: WORLD WAR 2 FIGHTER ARMAMENT EFFECTIVENESS. Just an FYI-
« Reply #26 on: June 22, 2011, 12:14:24 PM »
Here is a 20mm Hisso AP article of types 1940-45.

http://www.wwiiequipment.com/index.php?option=com_content&view=article&id=96:hispano-20mm-armour-piercing-ammunition&catid=44:gunsrockets&Itemid=60

This site has a good article on british airborne WW2 rockets.

http://www.wwiiequipment.com/index.php?option=com_content&view=article&id=98:airborne-rockets-used-by-the-british-during-wwii&catid=44:gunsrockets&Itemid=60

The link for the British rockets shows good data for the 3in/60lb SAP rockets, the exact rockets we have on our beloved Mossi, Typhoon, and Spitfire 16 in AH.     ;)
Proud grandson of the late Lt. Col. Darrell M. "Bud" Gray, USAF (ret.), B24D pilot, 5th BG/72nd BS. 28 combat missions within the "slot", PTO.