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Germany
Sturmpanzer VI mit 38cm Mörser RW61 (Sturmtiger)

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The Sturmpanzer VI mit 38cm Mörser RW61 was designed in 1943, manufactured by Alkett based on the existing fully tracked Tiger and was in use from 1943 to 1945.

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Photo of Sturmpanzer VI mit 38cm Mörser RW61 (Sturmtiger)
Sturmpanzer VI mit 38cm Mörser RW61(Sturmtiger) scale illustration

General Details
Specifications
Operational Date(s)1943 - 1945
Quantity Produced18
Weight65 tonne
Crew5
M.G's small1
M.G's large(>10mm)n/a
Length6.37 mtr
Width3.57 mtr
Height2.87 mtr
Engine Details/Performance
Max Road Speed25 mph
Max Cross Country Speed13 mph
Range Road75 miles
Range Cross Country30 miles
Fuel TypePetrol
Fuel Capacityunknown
Horse Power700 hp
Power/Weight10 hp/tonne
General Information
The Sturmpanzer VI mit 38cm Mörser RW61 was designed in 1943, manufactured by Alkett based on the existing fully tracked Tiger and was in use from 1943 to 1945.

The vehicle was powered by Maybach 'HL230 P45 V-12,' petrol powerplant producing 700 HP which could drive the vehicle on roads at up to 25 mph with a range of about 75 miles before refuelling. Its cross country performance was good providing a max speed of about 13 mph and a range of about 30 miles.

It was armed with 1 light machine gun. Its main armament consisted of a 38cm RW 61 which could penetrate 345 mm of flat plate at 100 metres

The 38cm rocket mortar was install in the Tiger I chassis for destroying building and concrete installations, it was based on a Naval anti submarine weapon.

Armour Details
Turret
Frontn/a
Siden/a
Rearn/a
Topn/a
Superstructure
Front150mm@45°(212mm)
Side80mm@30°(92mm)
Rear80mm@(80mm)
Top35mm@90°(35mm)
Hull
Front100mm@25°(110mm)
Side60mm@(60mm)
Rear80mm@(81mm)
Top25mm@90°(25mm)
Armour (x)mm @ (y)° (Effective mm @ 0°)
Effective Armour - Maximum 212 mm - Minimum 25 mm




Weapon Details
38cm RW 61
38cm Raketenwerfer 61
(translates as Rocket Thrower)
Blank
photo of 38cm RW 61 from Internal view of the SturmTiger from Nav weapons.com
History
This was originally a Naval weapon for use against submarines, but was fitted to the Tiger I as a large mortar.
Manufactured1944 - 1945
Calibre380mm
LengthL/5
Ammunition Details
Name/Id Calibre Weight MVelocity Explosive Content
Raketen Sprenggranate 4581
(HE High Explosive)
380mm 349Kg 250M/Sec 125.000Kg explosive
Maximum Range 5000 Mtr
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.4 0.8 1.62 3.27 4.96 6.68 8.44 10.25
Direct Fire
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.4 0.8 1.62 3.27 4.96 6.68 8.44 10.25
Hit Probability(%) 98 98 81 25 8 3 2 0
Blast/Fragmentation Effects
Burst radius Infantry in open 99% kill8 mtr Burst radius Infantry in open 66% kill17 mtr
Burst radius Infantry in open 33% kill43 mtr  Armour Penetration inc roof at 10 mtr375 mm
An explosion within 8 mtr of infantry in the open will cause 99% casualties - lethal.
An explosion within 17 mtr of infantry in the open will cause > 66% casualties and could damage some AFV's.
An explosion within 43 mtr of infantry in the open will cause 33% casualties.
The blast effect of this shell exploding within 10 mtr of an armoured vehicle will penetrate 375 mm of the tank armour including the roof.


 
Raketen Hohladungsgranate 4582
(HEAT High Explosive Anti-Tank)
380mm 349Kg 250M/Sec
Quoted Penetration 585mm @ 2000mtr/0°
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.4 0.8 1.62 3.27 4.96 6.68 8.44
Penetration(mm@30°) 585 585 585 585 585 585 585
Penetration(mm@0°) 585 585 585 585 585 585 585
Hit Probability(%) 98 98 81 25 8 3 2

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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