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Italy
Semovente da 149/40 su scafo di carro M41

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The Semovente da 149/40 su scafo di carro M41 was designed in 1942, manufactured by Fiat-Ansaldo based on the existing fully tracked P40 and was in use from 1942 to 1943.

Photo of Semovente da 149/40 su scafo di carro M41

General Details
Specifications
Operational Date(s)1942 - 1943
Quantity Produced1
Weight24 tonne
Crew4
M.G's smalln/a
M.G's large(>10mm)n/a
Length5.33 mtr
Width2.26 mtr
Height2.31 mtr
Engine Details/Performance
Max Road Speed20 mph
Max Cross Country Speed11 mph
Range Road0 miles
Range Cross Countryunknown
Fuel TypePetrol
Fuel Capacityunknown
Horse Power250 hp
Power/Weight10 hp/tonne
General Information
The Semovente da 149/40 su scafo di carro M41 was designed in 1942, manufactured by Fiat-Ansaldo based on the existing fully tracked P40 and was in use from 1942 to 1943.

The vehicle was powered by FIAT-SPA 'SPA petrol' petrol powerplant producing 250 HP which could drive the vehicle on roads at up to 20 mph with a range of about 0 miles before refuelling. Its cross country performance was good providing a max speed of about 11 mph and a range of about 0 miles.

Its main armament consisted of an Cannone contracarro da 149/40 M35 which could penetrate 366 mm of flat plate at 400 metres

The Semovente 149/40 was a self propelled gun redesigned from the P40 chassis.

The vehicle was powered by a Fiat petrol engine of 240hp the front drive sprockets took the track under eight road wheels on two bogies, round the rear idler and back via three return rollers.

The gun was a 149mm L/40 howitzer mounted in a box shaped superstructure.

Armour Details
Turret
Frontn/a
Siden/a
Rearn/a
Topn/a
Superstructure
Front30mm@11°(31mm)
Side25mm@(25mm)
Rear25mm@(25mm)
Top15mm@90°(15mm)
Hull
Front30mm@45°(42mm)
Side25mm@(25mm)
Rear25mm@(25mm)
Top15mm@90°(15mm)
Armour (x)mm @ (y)° (Effective mm @ 0°)
Effective Armour - Maximum 42 mm - Minimum 15 mm



Weapon Details
Flag
Cannone contracarro da 149/40 M35 Blank
Calibre149mm
 
Ammunition Details
Name/Id Calibre Weight MVelocity Explosive Content
AP(AP)
149mm 50.8Kg 800M/Sec
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.13 0.25 0.51 1.06 1.63 2.24 2.89 3.58
Penetration(mm@30°) 353 336 316 293 271 250 229 209
Penetration(mm@0°) 408 388 366 339 313 289 265 242
Hit Probability(%) 98 98 98 98 81 57 34 22

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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