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Germany
SdKfz 251/ 4 Ausf A,B,C Ammunition Carrier/Prime Mover (Hanomag)
Ordnance classification - SdKfz 251/4

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The SdKfz 251/ 4 Ausf A,B,C Ammunition Carrier/Prime Mover was designed in 1936, manufactured by Hanomag Borgward based on the existing half track SdKfz 251 Ausf A and was in use from 1937 to 1945.

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Photo of SdKfz 251/ 4 Ausf A,B,C Ammunition Carrier/Prime Mover (Hanomag)
SdKfz 251/ 4 Ausf A,B,C Ammunition Carrier/Prime Mover(Hanomag) scale illustration

General Details
Specifications
Operational Date(s)1937 - 1945
Ordnance classificationSdKfz 251/4
Quantity Produced0
Weight8 tonne
Crew7
M.G's small1
M.G's large(>10mm)n/a
Length5.85 mtr
Width2.12 mtr
Height2.34 mtr
Engine Details/Performance
Max Road Speed33 mph
Max Cross Country Speed16 mph
Range Road188 miles
Range Cross Country94 miles
Fuel TypePetrol
Fuel Capacityunknown
Horse Power100 hp
Power/Weight12 hp/tonne
General Information
The SdKfz 251/ 4 Ausf A,B,C Ammunition Carrier/Prime Mover was designed in 1936, manufactured by Hanomag Borgward based on the existing half track SdKfz 251 Ausf A and was in use from 1937 to 1945.

The vehicle was powered by Maybach 'HL-42' petrol powerplant producing 100 HP which could drive the vehicle on roads at up to 33 mph with a range of about 188 miles before refuelling. Its cross country performance was good providing a max speed of about 16 mph and a range of about 94 miles.

It was armed with 1 light machine gun. Its main armament consisted of a 7.5cm Le IG 18 which could penetrate 35 mm of flat plate at 100 metres

The SdKfz 251 series of vehicles were the first purpose built Armoured personel carriers. The vehicles could carry 10 panzer grenadiers in a small arms and shrapnel protected space. This version was used to move the 7.5 cm leichtes Infanteriegeschütz 18, the 50 mm Pak 38, 75 mm PaK 40 and 10.5 cm leFH 18 light field howitzer.

Armour Details
Turret
Frontn/a
Siden/a
Rearn/a
Topn/a
Superstructure
Front10mm@33°(12mm)
Side8mm@35°(10mm)
Rear8mm@40°(10mm)
Topn/a
Hull
Front15mm@21°(16mm)
Side8mm@35°(10mm)
Rear8mm@30°(9mm)
Top6mm@90°(6mm)
Armour (x)mm @ (y)° (Effective mm @ 0°)
Effective Armour - Maximum 16 mm - Minimum 6 mm




Weapon Details
7.5cm Le IG 18
7.5cm leichtes Infanteriegeschutz 18
7.5cm Le Infanteriegeschutz 18
(translates as Light Artillery)
(translates as Artillery)
Blank
photo of 7.5cm Le IG 18 from Wikipedia
History
This was a light Infantry support gun first issued in 1927 and still in use in 1945 and was designed as a horse drawn or vehicle towed gun
ManufacturerRheinmetal
Manufactured1927 - 1945
Calibre75mm
LengthL/22
Rate of Fire12rpm
 
Ammunition Details
Name/Id Calibre Weight MVelocity Explosive Content
7.5cm I Gr 18
(HE High Explosive)
75mm 6Kg 210M/Sec 0.570Kg explosive
Maximum Range 3375 Mtr
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.48 0.98 2.01 4.27 6.81 9.69 12.99 16.82
Direct Fire
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.48 0.98 2.01 4.27 6.81 9.69 12.99 16.82
Hit Probability(%) 98 98 64 15 3 1 0 0
Blast/Fragmentation Effects
Burst radius Infantry in open 99% kill3 mtr Burst radius Infantry in open 66% kill6 mtr
Burst radius Infantry in open 33% kill15 mtr  Armour Penetration inc roof at 1 mtr1 mm
An explosion within 3 mtr of infantry in the open will cause 99% casualties - lethal.
An explosion within 6 mtr of infantry in the open will cause > 66% casualties and could damage some AFV's.
An explosion within 15 mtr of infantry in the open will cause 33% casualties.
The blast effect of this shell exploding within 1 mtr of an armoured vehicle will penetrate 1 mm of the tank armour including the roof.


 
7.5cm I Gr38 H
(HEAT High Explosive Anti-Tank)
75mm 3Kg 260M/Sec
Quoted Penetration 45mm @ 200mtr/30° ( ≈ 51mm/0°)
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.39 0.79 1.63 3.45 5.5
Penetration(mm@30°) 45 45 45 45 45
Penetration(mm@0°) 45 45 45 45 45
Hit Probability(%) 98 98 81 25 6

Hit probability is based on a static 2 x 2.4 metre panel at 0 degrees(vertical) at the range specified.

The data that has been used to create these records has come from Wikipedia, The Lone Sentry, The Bundes Archive and numerous books and websites that have provided the detailed information that has not been available anywhere else. The information we use to calculate the penetration tables, flight times and the hit probability comes from the Gun Calibre, the Shell Mass(Kg) and the muzzle velocity, plus range reductions to allow for gravity and wind resistance. This calculation originally came from a pre-war Krupp calculation which has been modified, and seems to fit the actual test results.

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