7.5 cm Leichtgeschütz 40 and the FJ

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Brady
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7.5 cm Leichtgeschütz 40 and the FJ

Post by Brady » 21 Jun 2020 18:04

7.5 cm Leichtgeschütz 40,

I am trying to find data on its ammo, types and performance,

Specifically if and When it had a HEAT round, and what its penetration performance was like

What was the performance of it's AP round

And When were these available, Did they enter action on Crete ?

Thanks

Yoozername
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Re: 7.5 cm Leichtgeschütz 40 and the FJ

Post by Yoozername » 21 Jun 2020 18:26

Interesting data. They claim the weapon was breech loaded, Basically, they used existing projectiles but with propellant was in paper loads. I would assume that the characteristics are similar to other weapons as far as HE (like the IG 18 HE). HL rounds would be similar to other HL 7,5 cm depending on year.

https://www.militaryfactory.com/smallar ... rms_id=666

Most recoilless rifles have pre-cut driving bands that have to be lined up with the rifling. So, I really wonder if it was breech loaded without using a ram. This website shows the ammunition which seems like a seperate charge/projectile. The brass has a bakelite disk in the rear that obviously blows out.

http://www.wehrmacht-awards.com/forums/ ... p?t=945006
75rr.jpg
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Last edited by Yoozername on 22 Jun 2020 04:39, edited 2 times in total.

Brady
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Re: 7.5 cm Leichtgeschütz 40 and the FJ

Post by Brady » 21 Jun 2020 20:40

TY, interesting

Alanmccoubrey
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Re: 7.5 cm Leichtgeschütz 40 and the FJ

Post by Alanmccoubrey » 22 Jun 2020 07:52

According to Ian Hogg in his book on German Artillery in WW2, the 75mm LG fired the same warhead as the 7,5 cm GebH 36, it just used a different propellant charge.
Alan

Brady
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Re: 7.5 cm Leichtgeschütz 40 and the FJ

Post by Brady » 22 Jun 2020 14:47

Alanmccoubrey wrote:
22 Jun 2020 07:52
According to Ian Hogg in his book on German Artillery in WW2, the 75mm LG fired the same warhead as the 7,5 cm GebH 36, it just used a different propellant charge.
But I don't see a HEAT round for that Gun, and I had thought this did at some point have a HEAT Round ?

Yoozername
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Re: 7.5 cm Leichtgeschütz 40 and the FJ

Post by Yoozername » 23 Jun 2020 04:31

Brady wrote:
22 Jun 2020 14:47
Alanmccoubrey wrote:
22 Jun 2020 07:52
According to Ian Hogg in his book on German Artillery in WW2, the 75mm LG fired the same warhead as the 7,5 cm GebH 36, it just used a different propellant charge.
But I don't see a HEAT round for that Gun, and I had thought this did at some point have a HEAT Round ?
I believe the picture I posted above shows a HL round along with its brass? The HL rounds had the small fuse that was very sensitive.

German Hohlladung Projectiles:
7,5 cm Igr. 38 Hl/A FES
7,5 cm Igr. 38 Hl/A L'spur FES
7.5 cm Gr. 15/38 Hl/B (f)
7,5 cm Gr. 38 Hl/B FES
10 cm Gr. 39 rot Hl/B FES

Image

Alanmccoubrey
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Re: 7.5 cm Leichtgeschütz 40 and the FJ

Post by Alanmccoubrey » 23 Jun 2020 18:08

Brady wrote:
22 Jun 2020 14:47
But I don't see a HEAT round for that Gun, and I had thought this did at some point have a HEAT Round ?
[/quote]

Hogg lists a hollow charge round for the 7,5 cm Geb 36, he calls it the 7,5 cm Gr38. Sadly this is the full extent of my knowledge in artillery matters.
Alan

ROLAND1369
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Re: 7.5 cm Leichtgeschütz 40 and the FJ

Post by ROLAND1369 » 24 Jun 2020 14:46

Here are some specs and drawings of the HEAT round for the 75 MM gun LG 40. As noted the projectile was used for more than one weapon system just with different propellant charges in different cartridge cases. Disregard the Tank nomenclature and look at the "Employment" section of the page for the weapons system used. Source TM 9-1983-3, GERMAN EXPLOSIVE ORDNANCE, March 1953.
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Yoozername
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Re: 7.5 cm Leichtgeschütz 40 and the FJ

Post by Yoozername » 25 Jun 2020 01:54

A German document shows 7.5 cm Leichtgeschütz 40 were using a HL/C round by June 1944. The actual designation is GR 38 HL/C. It had a velocity around 350 M/s or so. I would assume they were using a version of HL/B before then.

Brady
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Re: 7.5 cm Leichtgeschütz 40 and the FJ

Post by Brady » 25 Jun 2020 03:31

Ok, that’s certainly helpful, but it also means that they were not using any of them probably before January 42

So non on Crete

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