Leichter Flakkraftwagen Kfz.81 (Krupp-Protze)

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I would like to suggest the (specific) Leichter Flakkraftwagen Kfz.81 (Krupp-Protze) (Light AA vehicle) (more on that below). It would be the duo vehicle together with the Kfz.69 also based on the Krupp-Protze.

It was part of the Lkw. der Fliegerabwehrtruppen, which included the Kfz.81 and 83, which had a 2 cm Flak 30 or 38 (81) and a light spotlight (83), the Kfz.83 existed as leichter Scheinwerferkraftwagen I and II.

It was the heavyer truck counterpart to the Sd.Kfz.10/4 (and 10/5), which had the same armarment and were primay pre war light aa vehicles as well as against Infantry, structures and tanks if no enemy air is around.

Overall the Kfz.81 number was shared between 3 chassis, the Krupp-Protze (that i suggest), the l. gl. Lkw. (o) (Leichter geländegängiger Lastkraftwagen offen / light offroad truck open cabin) and the s. Einheits-Pkw (Schwerer Einheits Personenkraftwagen / Heavy Unified Car).
The Vehicle was equipped with ammo, tools, spare parts, bench for the crew and the gun usually towed, however sometimes also put on the vehicle.

The armarment was as mentioned above either a 2 cm Flak 30 L/65 or 2 cm Flak 38 L/65, more on that below at the armarments section, i suggest to make it choosable as a modification, as the only in game effective difference would be the fire rate 280/480 rpm and slightly more depression -12/-20°. But both would be of interest, as the Flak 30 with its lower rate of fire could offer an easier job at AA work (and AT work) because you have more time to actively adjust your shooting while shooting.
It could come at Br 1.3 similar to the japanese 20mm AA truck, an unarmored and bigger (but bigger crew and faster) alternative to the Flakpanzer I.

The inofficially and popular known Krupp-Protze is the L 2 H 43 (1933-1936) and L 2 H 143 (1937-1941) produced Truck by F.Krupp AG produced for the Reichswehr and then Wehrmacht. About 7000 were produced and used as different variants the whole war. Pulling general equipment, transporting infantry, AA guns, AT guns, ammo and more.


Pictures:(Click to show)

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Without anything.
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It was build in an unconventional kind, out of pressed U-profiles and because of its 4 Cylinder Boxer Engine at the front was overall quite low profile, especially the nose. The engine was shared with the Pz I Ausf.A

(Drawing of the Krupp M305 (Click to show))

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The Vehicle:
Sd.Kfz.69
Dimensions: 5,10 m / 1,96 m / 1,93 m
Weight: 2550 kg (without gun)
Engine: Krupp M305 Boxer 4 Cylinder 60 Ps / 2500 Rpm
Speed: 70 Km/h
Crew: 3-4
Armor: Only gunshield.

The Armarment:
Either 2 cm Flak 30 L/65 or 2 cm Flak 38 L/65 480 rounds, optional ammo trailer. More in the spoiler below, including ammo types. 20 and 40 round magazins


20mm Flak 30/38 L/65
Picture Flak 30:

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Picture Flak 38:

Picture Gebirgsflak 38:

The Gebirgsflak 38 is a lightweight version, which can be disassebled into 3 pieces to carry it by 3 solders.

The Mounting is also lightweight and has increased vertical traverse for fighting in the mountains.

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Picture Flakvierling 38:

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Ill put these 2 together cince they have the same L/65 barrle and the same 20x138mmB Rh ammo.

Caliber: 20mm

Ammo: 20x138mmB Rheinmetall

Fire Rate: 280 rpm (30) 480 rpm (38)

Magazinfed 20 or 40 rounds

Muzzle velocity: 800-1050 m/s

Weight: 450kg (30) 405(38) (around 64 and 56 kg KwK (30 and 38) alone)
1509kg (Vierling with trailer)

Mounts:
Flak 30 Lafette: -12° to +90°
Flak 38 Lafette: -20° to +90°
Flakvierling 38: -10° to +100°

Ammo Types: Ap-T, ApI-T, Aphe-T, APCR-T, He-I, HeI-T and HeI-T (m) (And self destruct)


AP:


Pzgr. L'Spur. o.Zerl. (Ph.) (ApI-T) 0,148kg 800m/s 37mm/10m

Note: Used against ground targets. Soft and armored. 3g White Phosphor Core. Were fully replaced by the empty ones and later .Zerl in the Desert and other hot places, as the phosphorus had a nasty tendency to self ignite in hot weather. The “Ph.” marked ones were standard with the filler, however they also existed with an “O.” which indicated they didnt have a filler and were only 143g (and 830m/s).
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Screenshot 2024-06-02 184250
Screenshot 2024-06-02 183231


Pzgr. L'Spur o.Zerl. (O.) (Ap-T) 0,143kg 830m/s 38,71mm/10m

Note: Used against ground targets. Soft and armored. White stenciled “O.” (ohne/without) indicated empty projectiles.
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Screenshot 2024-06-02 184250
Screenshot 2024-06-02 183231


Pzgr. L'Spur zerl. (Aphe-T Sd) 0,148 kg 800m/s 2,4g Pent 35mm/10m

Note: Against ground and air tragets. Soft and armored.
It does NOT have a fuze, the filler is for self destruction, in game it would also explode upon impact when shattering, like the japanese 30mm Aphe.
Bild11
Screenshot 2024-04-19 134646


Pzgr.40 L'Spur. o.Zerl. (HVAP-T) 0,100kg 1050m/s 62g core 12x45mm 50mm/10m

Note: Only used against heavy armored targets, where the standart Ap ammo does not penetrate.
(There were 3-4 generations, with ever increasing length and slightly weight, to improve stability.)
Bild14
Screenshot 2024-04-19 134609
Screenshot 2024-04-19 134620
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Pzsprgr. L'Spur o.Zerl. (Aphe-T) 0,148 kg 800m/s 3,6g Pent 33mm/10m

Note: Mainly (?) used by the Navy and only against ground targets.
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Screenshot 2024-04-08 201437


Pzsprgr. L'Spur m.Zerl. (Aphe-T Sd) 0,121 kg 900m/s 3,6g Pent 33mm/10m

Note: Mainly (?) used by the Navy and against ground and air targets.
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Screenshot 2024-04-19 134808
Screenshot 2024-04-19 134804


(This last picture is an adaption for the Mg151/20 and uses a different shorter tracer, which results in it beeing also a bit lighter)
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He:


Sprgr. L'Spur m.Zerl. (Hef-T Sd.) 0,115 900-930m/s 6,2g Pent (10,54g) 5mm/10m

Old design without boattail, prewar replaced by Sprgr. L’Spur W, only remaining stock was used in the war. It is not clear wether a velocity beyond 900m/s can be reached regardless of the projectile weight, with the propellant, as its a high pressure quick burning propellant, with quick drop off.
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Sprgr. L'Spur. W m.Zerl. (Hef-T Sd.) 0,120kg 900m/s 6,2g Pent (10,54g) 5mm/10m

Against air and ground targets.
Zeichn_04
Screenshot 2024-05-10 000937


Sprgr. Erd. o.L'Spur. o.Zerl. (Hef) 0,120kg 900m/s 11g Pent (18,7g)

Note: Only against groundtargets. Other name is Spr.Gr.39.
(Couldnt find the correct drawing, the Br.Sprgr. o.L’Spur is basically the same, just different filler with Zink.
Screenshot 2023-09-06 122928
sprgr erd
Screenshot 2024-06-02 183422


Brsprgr. L'Spur m.Zerl. (Hefi-T Sd.) 0,120kg 900m/s 6,6g H.5 and Aluminium

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Brsprgr. vk. L'Spur m.Zerl (Hefi-T Sd.) 0,120kg 900m/s 19g H.5 and Zink

Note: Against Air and Ground targets, reduced tracer length for increased filler. The full feight of the H.5 and Zink mixture is 19g, not the pure He filler.
(first drawing is either a earlier model or a slighly too short drawn capacity.)
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(This italian drawing is more representative.)
Screenshot 2024-05-31 173318
Screenshot 2024-04-19 134851


Brsprgr. o.L'Spur. m.Zerl. (Hef-I Sd.) 0,120kg 900m/s 20g H.5 and Zink

Note: Against ground and air targets. No tracer at all to have a fully capacity He (H.5) and Incendary (Zink) mix. (Weight calculated by Killakiwi 7g H.5 13g Zink)
Screenshot 2023-09-06 122928
Screenshot 2024-04-19 134832


Minengeschoss:


M-Gesch. X m.Zerl (He-I (m) Sd.) 0,104kg 950m/s 25g HA 41 (40g)

Screenshot 2024-04-19 132439


M-Gesch. X L'Spur m.Zerl (HeI-T (m) Sd.) 0,109kg 950m/s 24g HA 41 (38,4g)

Screenshot 2024-04-19 134912


Vehicles:

Flakpanzer I, Flakpanzer 38, Wibelwind, Möbelwagen


Source:
H.Dv. Munition der 2 cm Waffen
Kraftfahrzeuge und Panzer der Reichswehr, Wehrmacht und Bundeswehr
Heereswaffenamt D.669/9 Lastkraftwagen 1 1/2 T Krupp

4 Likes

youll always get the best vehicles +1

+1 Very goofy