Author Topic: LW 13mm MG-131s (Read 1069 times)

Krusty · « **on:** February 17, 2005, 10:36:09 PM »

Stupid question, probably, but were these guns firing solid rounds (like 50cal?) or small explosive rounds (like MG-151 and small caliber cannon?)?

Glasses · « **Reply #1 on:** February 17, 2005, 10:52:05 PM »

I call the powers of knowledge from the altar of munition knowledge TONY WILLIAMS COME HITHER and Enlighten us mere mortals

Pongo · « **Reply #2 on:** February 17, 2005, 11:12:00 PM »

They had explosive rounds.

Tony Williams · « **Reply #3 on:** February 17, 2005, 11:33:58 PM »

Quote

Originally posted by Glasses
I call the powers of knowledge from the altar of munition knowledge TONY WILLIAMS COME HITHER and Enlighten us mere mortals

Did somebody rub my lamp?

There were various types of ammo fired by the MG 131, including HE, HEI, AP and incendiary, with or without tracers.

I have seen belting ratios of 2 x HEI-T plus 1 x AP-T, or 1 x AP-T, 1 x HEI and 1 x HE-T.

Tony Williams: Military gun and ammunition website and discussion
forum

Krusty · « **Reply #4 on:** February 18, 2005, 01:00:34 PM »

So... Why in AH do we have crappy 13mm guns that only act like 50cals? They should be much more powerful!

Karnak · « **Reply #5 on:** February 18, 2005, 01:21:05 PM »

Quote

Originally posted by Krusty
So... Why in AH do we have crappy 13mm guns that only act like 50cals? They should be much more powerful!

AH seems to favor muzzle velocity and the 13mm MG131 had a crappy muzzle velocity.

Also keep in mind that the HE or HEI content of rounds that small will be pretty low.

moose · « **Reply #6 on:** February 18, 2005, 01:23:11 PM »

what if we were able to select different types of ammunition ? incindary would be fun to use

HoHun · « **Reply #7 on:** February 18, 2005, 01:24:18 PM »

Hi Krusty,

>So... Why in AH do we have crappy 13mm guns that only act like 50cals? They should be much more powerful!

Well, compare the following rounds:

Round Type Mass g v0 m/s Chem% KE kJ ChemE kJ total E kJ
12,7x99 API 112 890 2 17,0 4,8 21,8
12,7x99 AP* 112 890 0 17,0 0,0 17,0
13x64B AP 76 710 0 9,7 0,0 9,7
13x64B HE 72 750 3,5 9,6 6,6 16,2

* Figures from API with 0 chemical energy for comparison purposes

The 12.7 mm M2 fires a 50% heavier shell at a 20% higher velocity, giving about 2 times the kinetic energy.

Use the most powerful round for the MG131 and the 12.7 mm M2 alike, and the firepower of the M2 is 135% per round. Figure in the higher rate of fire of the MG131, the M2's firepower per barrel is just 117%.

Regards,

Henning (HoHun)

MANDO · « **Reply #8 on:** February 18, 2005, 02:39:35 PM »

HoHun,

mixing incendiary chem with he chem with no chem at all, to find out a total E and derive from there the potential damage is a big mistake.

Powerful AP or API will do a deep or deeper hole with or without fire chance. He damage is different at all. Is like comparing medieval swords with medieval mazes, you just cant use the weight and speed of the blow to calculate an ammount of damage for mazes and swords.

HoHun · « **Reply #9 on:** February 18, 2005, 03:08:23 PM »

Hi Mando,

>mixing incendiary chem with he chem with no chem at all, to find out a total E and derive from there the potential damage is a big mistake.

Not at all :-) It's a slight oversimplification that averages out over a large number of hits on a complex target.

>Is like comparing medieval swords with medieval mazes, you just cant use the weight and speed of the blow to calculate an ammount of damage for mazes and swords.

Terminal ballistics is hell :-)

Regards,

Henning (HoHun)

Schaden · « **Reply #10 on:** February 19, 2005, 11:30:09 AM »

Quote

Originally posted by Glasses
I call the powers of knowledge from the altar of munition knowledge TONY WILLIAMS COME HITHER and Enlighten us mere mortals

Sort of like the Bat Signal?

frank3 · « **Reply #11 on:** February 21, 2005, 02:49:29 PM »

I always thought the .50 contained explosives?

Pongo · « **Reply #12 on:** February 21, 2005, 03:03:59 PM »

Nope just incenderary.

frank3 · « **Reply #13 on:** February 21, 2005, 04:22:08 PM »

Incendary means that the thing will damage something due to impact?

lasersailor184 · « **Reply #14 on:** February 21, 2005, 05:08:47 PM »

Incendiary = Fire. It's meant to cause a fire to whatever it hits.

If you take a regular .50 BMG and hit a grass hut, it's gonna make a clean hole.

You take an Incendiary .50 BMG and hit a grass hut, it should light that sucka up! (Should being the keyword there).