Krupp-Daimler KD-I mit 3,7 cm Sockel Flak L/14,5 "Its not short, its just cold here."

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I would like to suggest this WW1 Truck AA gun, the 3,7 cm Sockel Flak L/14,5 mounted on the reliable and prooven KD-I Artillery tractor. Along the other mounted guns on KD-I and Benz Gaggenau (mostly 7,7 cm, 7,5 cm and 8,8 cm guns) were also a 3,7 cm Sockel Flak L/14,5 mounted.

What is the 3,7 cm Sockel Flak L/14,5?
Its an early development of an full auto 10 round magazin fed 37mm Light weight gun originally envisioned to be mounted on Zeppelins as Air defence as well as to shoot at ground targets, as well as in bombers.
And Zeppelins had (along others) a flaw, weight. Duo to the main planned use the gun had to be small (only a L/14,5 barrle) and light (full combat weight with the Sockel (the Mounting) of just 215 kg. For comparisson the 3,7 cm Flak 37 L/57 is full weight 1,550 kg and the 40 mm Bofors L/60 is 1,981 kg, so this small 37mm gun is extremly light for its class.

But along the less usefull use on Zeppelins and their use on bombers, the idea to use them as ground based AT (less usefull as well) and AA gun both stationary and mobile along the german use of the 37mm Hotchkiss revolver cannon and the Flak M14 Pom-Pom (they all used the same round (not casing)).
And such i am suggesting here, there exist a singular picture of the KD-I mit 3,7 cm Sockel-Flak L/14,5, it was build and used by the german Army near the end of WW1 and then went into use with the Nether as reperations.

Pictures: (Click to show)

(Picture lost)
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In Game it could be a 1.0 sidegrate (or well worse AA than Flakpanzer I) and would be another WW1 addition that would be fun, (somewhat) usefull in its main role, however will rather lack in the AT role, duo the velocity. Against Biplanes and WW1 tanks as well as Halftracks and Trucks it will be rather good, but beyond that a mere fun WW1 vehicle.

Overall the usefullness is somewhat doubtfull because of the low velocity of just 355-360m/s against ww2 tanks. But it will be usable and fun against biplanes, as the He grenades dont actually have a tracer, but lots of filler. The SapI-T ammo with all of 14mm penetration will only be able to destroy light targets as well as (if there will be more WW1 tanks some day) the British Mark tanks through their 12mm side armor.

So while it looks bad on paper, i still think it deserves its place in game and will be fun to use as it certainly can be used. As while not the best, there are certain advantages, such as Tracerless He ammo (you may be able to detrack someone and flee befor they find you) and ultra light recoil, as its just so weak compared to other guns mounted on a fairly massive vehicle with a solid heavy duty pintle mount (relatively to the field mount which is quite light.)

Furthermore it will hold the record of the shortest barrle as with L/14,5 it is shorter than the current record holder, the 3,7 cm SA 18 L/21.

The Gun:
3,7 cm Sockel-Flak L/14,5
Weight: 215kg 120 RPM 355 m/s for the 0,47 kg He and 360 m/s for the 0,465 kg SapI-T velocity. -5° to + 80° elevation. Ammo Storage unknow, the normal storage wooden boxes were placed at the back of the flatbed, around 400 rounds (40 Mags) or more seems realistic.
Overall 4 rounds existed, beeing of old and new designe, as well as possible different designes of different construction. 2x He rounds and 2x ApI-T rounds existed.
these include the.


AP:


L'Spur.-Gr. L/2,5

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Screenshot 2024-08-02 140932
Screenshot 2024-08-02 140920
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L'Spur.-Gr. L/2,5 (Stahl) (ApI-T) 0,465 kg 360m/s 14mm/10m

Can be conciddered ApI-T, duo to its huge tracer filling of Barium Nitrate, Magnesium and Shellac.
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HE:


Gr. L/2,5

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Screenshot 2024-08-02 141554
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Sprgr. L/2,5 (Kz.) (He (Tracerless)) 0,47 kg 0,042kg Pieretic Acid (0,0462kg TnTa) 355m/s

Also aparently a 2nd version with base plug, weight of 0,45kg and 0,04kg He Filler.
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Screenshot 2024-08-02 140911
Screenshot 2024-08-02 140858


Here a link to replica L'Spur.-Gr. L/2,5 (Stahl) (Click to show)

3,7 37x101SR Deutsch Sockel Flak Deko Patrone - Muna-Rheinland Deko Munition Sammlermunition


The Gr. L/2,5 along with the other cast iron shell are merly the early desinges, replaced by the improved steel shots.

In game 3 Belts should be made for the gun, because of the ammo available, as the He grenade has no tracer, the default belt should be 50/50 mix and then 2 pure belts.

Vehicle: Artillerie-Kraftzugmaschine Krupp-Daimler 100 PS

Weight: 8000 kg

Length: 6265 mm

Width: 2170 mm

Height: 2860 mm

Axle articulation: 30°

Engine: 4 or 6 cylinder 100 HP/74kw engine

Speed: 8 gears forward with 65 kmph (conflicting sources, going from 36 kmph with 10t attached load to 65 kmph)

3 reverse gears to 8,5 kmph

Wheelbase: 3750mm

Ground clearance: 400mm

Turning radius: 6,5m

Crew: for this vehicle in game somewhere between 6-10

Armor: around the Hull 3-4mm (wow so thick, will deflect some small he rounds and rifle bullets from afar, nothing more)

Source:
Geschossringbuch I
Das Gerät der Artillerie vor, in und nach dem Weltkrieg
Encyclopaedia of the German Army in the 20th Century
Vom Einzelschuss zur Feuerwalze: der Wettlauf zwischen Technik und Taktik im Ersten Weltkrieg

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Lmao sure. Would be a funny little throwaway squadron or event vehicle to fuck around in every now and then. +1

Man i would really love a 1st world war mode.

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That gun is adorably small. +1

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After looking for more source material the velocity for He could also have been 355m/s and 360m/s for the SApI-T increasing the penetrationf from 13mm to a whopping 14mm/10.

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This gun would be the new record holder for the shortest barrle. As with L/14,5 it is shorter than the current 3,7 cm SA 18 L/21.

The filler, Grf.88, is picric acid, which is 22 grams. The other 20 grams I have no idea what it is, probably some TNT booster charge. These two combined have a total weight of 42 grams, so the TNTe is higher than 42 grams (44.2g total if the other charge is TNT).

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An Aphe round (would be dual purpose, tho even worse against tanks) apparently was also available.

Likely simply the british ammo (with a longer casing), as the ammo along with the french Hotchkiss revolver cannon (which all had interchangable rounds (not casings) were used.

With the addition of WW1 aircraft, I think it’s worth looking at the various mobile anti-air installations each nation has to offer. Luckily, the planes we have now seem extremely fragile even to MG fire, so there’s no doubt that any sort of automatic weapon will suffice.

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There is also some rare firing footage preserved in the German federal archives


The full 2:37 footage also contains firing of the 3.7 cm Flak M14 and can be found here.

That’s a picture from the 1920s in use by Dutch soldiers with a different vehicle. Often mislabeled as the Krupp-Daimler with a 3,7 cm Sockelflak, so it’s understandable.

What is it then? Because this is the photo Ghostmaxi originally used for this suggestion and very much seems to depict a KD-I with the 3.7 cm Sockel Flak. Supposedly it was captured by the allies postwar and given to the Dutch in 1919 to assist in air defence.

To my knowlege, that is a 57mm gun by the Nether.
@Spr4yz can tell you more about that.
Ah wops, didnt see he already answered that.

The velocity is far too low to hit any air targets, with no armor penetration to deal with any tank.

Don’t see how it would have any role in the game.

Meme, idk, against other Trucks without any armor like a grenade launcher. And while bad as AA, against WW1 biplanes as seen in the event still possible, many shot down planes with even the 76mm gun with 381m/s.

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I see, the Sockel Flak vehicle only exists in your sources then? Because I am pretty sure I do remember you including the aforementioned photo in your suggestion at one point.

Yeah but every “truck” in the game has a more lethal armament against other trucks, while also being effective against air targets.

Imagine a FCM. 36 but with no armor and AP with even less penetration than the APCR it got.
But it has a LMG that can kill trucks just as well as a 37mm grenade launcher.

The meme would be that it would be completely unusable in any battle.

Meanwhile the air targets’ velocity is far too low to avoid the AA fire whilst in firing range, and their “armor” is so weak that even a couple of 7.92mm rounds will send them into a crash.

Like seriously, the planes Gaijin added are so fragile that sometimes it feels like the A7V is actually more effective at dispatching them than actual fighters.

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Well, i did, until Spr4yz told me that its not that picture.

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The vehicle, from what I can gather, seems to be a Berna C2 with a Dutch 6-cm T.L. (an AA-version of the Stuk van 6-Veld field gun, actually 57 mm in both cases) used by Dutch troops.

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Thanks for the clarification then, it certainly disappoints me, but at least I can sleep easy at night knowing that Germany also has a few 20mm Becker-armed vehicles that could be added to the WW1 playing field.