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Sd.Kfz. 251/22



Overview


SdKfz. 251/22

Left side view of SdKfz. 251/22 tank destroyer armed with 75mm PaK-40 anti-tank gun.

Source: Unknown author - © Copyright lies with original owner

Origin
Nazi Germany
Type
Tank destroyer
Entered service
December 1944
Status
Out of service
Development
Late 1944
Developer
Nazi Germany
Production
Late 1944 - Early 1945
Producer
Nazi Germany
Number produced
268 (most credible estimate)
Designations
7.5 cm PaK40 L/46 auf mittlerem Schützenpanzerwagen
mittlerer Schützenpanzerwagen mit 7,5 cm Pak 40
Pakwagen (nickname)
Notable users
Nazi Germany
Yugoslavia

Description


Introduction

The Sd.Kfz. 251/22 is a self-propelled anti-tank gun of Nazi German origin. It was developed and produced in the late stages of World War 2. Using a powerful anti-tank gun on a halftrack is less than ideal, but did provide much needed mobility for anti-tank guns to support infantry in defensive positions.

Design

All vehicles were based on the Ausführung D version of the widely used Sd.Kfz. 251 halftrack and not on earlier models. These vehicles were produced both as new vehicles and as field conversions. Conversion kits were shipped to field workshops for conversion of late style Sd.Kfz. 251/9 with the shorter 75mm gun. Due to the chaotic final stages of World War 2 the exact production number is difficult to ascertain.

Firepower

Even in the late stages of World War 2 the 75mm PaK-40 was a potent anti-tank gun. It can be accurately used at longer distances and at range it is still effective against the vast majority of Soviet and Allied tanks. The main limitation of the the Sd.Kfz. 251/22 is the limited traverse and elevation of the gun. Unlike many tracked tank destroyers the Sd.Kfz. 251 halftrack cannot pivot. A limited number of shells were carried. Cramped internal arrangement probably reduced the rate of fire compared to the towed variant.

Mobility

The Sd.Kfz. 251/22 provides much needed mobility to anti-tank guns in support of infantry. The mobility allows for quickly setting up defensive positions. Downside of the Sd.Kfz. 251/22 is that it is somewhat overweight. Recoil forces probably increase wear and tear. A downside of the Sd.Kfz. 251 is that it cannot pivot. This is a problem since the armament has a limited traverse. To engage an enemy vehicle from another direction the Sd.Kfz. 251/22 must drive forward or reverse while steering. This takes valuable time, and a moving vehicle is easier to spot than a camouflaged vehicle static in ambush.

Protection

The steel armor of the Sd.Kfz. 251 Ausf D halftrack provides protection against small arms fires, especially at extended range. The Sd.Kfz. 251/22 is an open top vehicle. Aside from the gun shield the gun crew and commander are partially exposed when operating the PaK-40.

Users

The Sd.Kfz. 251/22 was used by Nazi German forces in the later stages of World War 2. It was mostly used with infantry units, such as panzergrenadiers. After World War 2 it was used in quantity by Yugoslavia in the early stages of the Cold War.

Details


Facts Sd.Kfz. 251/22
General
Origin
Nazi Germany
Type
Tank destroyer
Crew
4 (commander, driver, gunner, loader)
Dimensions
Weight
About 9 t combat load
About 8 t empty
Length
5.98 m
Width
2.10 m
Height
1.75 m
Main armament
Type
75mm PaK-40 anti-tank gun
Ammunition
22 rounds
Elevation
-3° to +22°, manual
Traverse
20° left, 18° right, manual
Stabilizer
No
Secondary armament
Type
7.92mm MG34 or MG42 machine gun
Mount
Pintle mount at rear of crew compartment
Chassis
Chassis type
Halftrack chassis with interleaved roadwheels
Layout
Six roadwheels, drive sprocket front
Steering
Front wheels and clutch for tracks
Tread
1.6 m
Wheelbase
2.78 m
Track width
0.28 m
Track on ground
1.8 m
Suspension
Torsion bar for tracks
Rigid axle with leaf spring for front wheels
Automotive
Engine model
Maybach HL42 TUKRM
Engine type
4.2 L water-cooled 6-cylinder in-line petrol
Power output
100 hp @ 2.800 rpm
Fuel
160 L
Mobilty
Max speed
50 km/h on road
10 km/h cross country
Range
300 km on road
150 km cross country
Turn radius
13.5 m
Power to weight ratio
11.6 hp/t
Protection
Armor type
Steel
Armor thickness
14.5 mm front plates
6 mm engine compartment
8 mm sides and rear
PaK-40 gun shield
Roof
Open
Equipment
Night vision
No
Radio
Yes, FuG 12 radio set

Related articles


Sd.Kfz. 251/1

The Sd.Kfz. 251/22 is based on the late production model of the Sd.Kfz. 251 Ausführung D armored personnel carrier.

75mm PaK-40

The Sd.Kfz. 251/22 is fitted with the 7.5 cm PaK-40 anti-tank gun. The carriage is not used, otherwise the PaK-40 is unaltered.

Sd.Kfz. 234/4

The Sd.Kfz. 234/4 can be considered the wheeled equivalent to the Sd.Kfz. 251/22. Both vehicles are armed with a 75mm PaK-40 anti-tank gun.