The 15 cm sIG 33 (Sf) auf Panzerkampfwagen 38(t), also known as Grille (German: "cricket") was a series of self-propelled artillery vehicles used by Nazi Germany during World War II. The Grille series was based on the Czech Panzer 38(t) tank chassis and used a 15 cm sIG 33 infantry gun.

Grille Ausf. K
Grille Ausf. K on display at the US Army Ordnance Museum.
TypeSelf propelled artillery
Place of originNazi Germany
Service history
In service1943 - 1945
WarsWorld War II
Production history
Produced1943 - 1944
No. built389
Variantsammunition carrier
Specifications
Mass11.5 tonnes
Length4.95 m (16 ft 3 in)
Width2.15 m (7 ft 1 in)
Height2.47 m (8 ft 1 in)
Crew5

Armor10 mm - 15 mm
Main
armament
15 cm sIG 33
15 rounds
Secondary
armament
7.92 mm Maschinengewehr 34
600 rounds
Engine1 x Praga AC, 6-cylinder petrol engine
147 hp (110 kW)
SuspensionLeaf spring
Operational
range
190 km (120 mi)
Maximum speed 35 km/h (22 mph)

Development edit

The original order for 200 units of the Grille, was to be based on the new 38(t) Ausf. M chassis that BMM (Böhmisch-Mährische Maschinenfabrik) was developing, however delays caused production to start on the 38(t) Ausf. H chassis.

Grille Ausf. H edit

 
Side view of Grille Ausf. H

The first variant of the Grille was based on the Panzer 38(t) Ausf. H chassis,[1] which had its engine in the rear. Instead of a turret the vehicle had a low-slung superstructure and fighting compartment.[1] The 15 cm schweres Infanteriegeschütz 33 (heavy infantry gun) was mounted in the front of this armored compartment. Being built on a tank chassis, its hull armour was 50 mm (front) and its superstructure armour was 25 mm (front)[1]

A total of 200 (including one prototype) were produced in the BMM (erstwhile ČKD Praga) factory in Prague from February to June 1943, further 10 were built in November 1943. The official designation was 15 cm Schweres Infanteriegeschütz 33 (Sf) auf Panzerkampfwagen 38(t) Ausf. H (Sd.Kfz. 138/1).[2]

Grille Ausf. K edit

The second Grille variant was very similar to the Marder III Ausf M, using the same modified Panzer 38(t) chassis which was specifically re-designed for self-propelled mounts. The engine was relocated to the center of the vehicle behind an extended sloped glacis plate, both permitting the gun to be mounted at the rear and better protecting the crew. The fighting compartment at the rear of the vehicle was somewhat smaller and higher than in the previous version. Because there was no engine in the rear, the fighting compartment could be lowered down to the bottom floor level where the engine used to be, which decreased crew exposure and visibility. The main gun was also the 15 cm schweres Infanteriegeschütz 33.

From December 1943 to September 1944 a total of 162 vehicles were produced. Further 17 vehicles were built in 1945 for an overall production of 179. [2] The official designation was 15 cm Schweres Infanteriegeschütz 33/1 auf Selbstfahrlafette 38(t) (Sf) Ausf. M (Sd.Kfz. 138/1)

Ammunition carrier edit

As the Grille had limited ammunition storage, a dedicated variant of the Grille Ausf. K was built as Munitionspanzer 38(t) (Sf) Ausf. K (Sd.Kfz. 138/1). It carried ammunition racks instead of the main gun but could be converted back to normal configuration in the field by mounting the 15 cm gun onto it. Production totaled 102 vehicles.[2]

Combat history edit

Both versions were intended to take service in the schwere Infanteriegeschütz Companies within the Panzergrenadier regiments, inside Panzer and Panzergrenadier Divisions, in their heavy infantry gun units. Each detachment had six available.[2]

Surviving vehicles edit

References edit

  1. ^ a b c Rickard, John. "Grille/ 15cm sIG33 (Sfl) auf PzKpfw 38(t) ausf H, M". Retrieved 29 July 2014.
  2. ^ a b c d "sIG 33 auf Panzer 38(t) Ausf.H/K Grille". www.tanks-encyclopedia.com. Retrieved 26 January 2022.

Bibliography edit

  • Chamberlain, Peter, and Hilary L. Doyle. Thomas L. Jentz (Technical Editor). Encyclopedia of German Tanks of World War Two: A Complete Illustrated Directory of German Battle Tanks, Armoured Cars, Self-propelled Guns, and Semi-tracked Vehicles, 1933–1945. London: Arms and Armour Press, 1978 (revised edition 1993). ISBN 0-85368-202-X; rev. ed. ISBN 1-85409-214-6.

Further reading edit

External links edit