Monthly Archive for May, 2010

s. Zgkw. 12 t (Sd. Kfz. 8): Heavy Semitrack Prime Mover

s. Zgkw. 12 t (Sd. Kfz. 8): Heavy Semitrack Prime Mover

The 12-ton heavy prime mover is highly mobile despite its bulky appearance. It can handle a trailer load of 13 tons and carry a crew of 11, including the driver. It has a weight distribution as follows: front wheels, 5,200 pounds; track, 21,300 pounds. Its combat weight is 16 tons.

The front suspension consists of a tubular axle of the oscillating, floating type carried by two pressed steel wheels, size 11.25 x 20, mounting extra heavy-duty tires. A traverse leaf spring is on a pivot in the center of the frame. One end of the spring is mounted to the axle through a shackle while the other end is free to slide. The rear, or track suspension, is made up of six twin rubber-tired bogie wheels mounted on torsion arms, attached to torsion bars and housed in cross tubes. The front drive sprocket and rear idler complete the assembly. The track is of the needle-bearing type with removable rubber pads.

Steering is by conventional steering wheel and through epicyclic-controlled differential to the track sprockets, being actuated by hydraulic brake bands.

Power is furnished by a Maybach V-12 over-head valve, liquid-cooled, HL 85 TUKRM gasoline engine, rated at 185 horsepower. Ignition is the conventional 12-volt Bosch magneto located behind the carburetors. All ignition wires are carried in a flexible aluminum conduit to the side of the engine.

The transmission provides four speeds forward, one reverse, with high and low range.

This vehicle is equipped with an inertia starter and a cable winch with a lifting power of 5.5 tons.

SPECIFICATIONS

Weight       13 tons
Length24 ft.
Width8 ft., 2 1/2 ins.
Height9 ft., 2 ins.
Ground clearance16 ins.
Tread centers6 ft., 3 ins. (wheels, 6 ft., 9 ins.)
Ground contact8 ft., 3 ins.
Width of track15.7 ins.
Track links55
Pitch of track8 ins.
Fording depth25 ins.
Theoretical radius of action
   Roads155 miles
   Cross-country62 miles
Speed
   Roads30 m.p.h. (est.)
   Cross-country18 m.p.h. (est.)
Armor
   Front plateNone
   SidesNone
Armament
Ammunition (rds.)
EngineMaybach HL 85 TURRM, 185 hp.
Transmission4 speeds forward, 1 reverse, high and low range
Steering15° and over—Epicyclic controlled differential
Crew11

German: p. 55

7.5 cm Pak 40: Antitank Gun

7.5 cm Pak 40: Antitank Gun

The Pak 40, an antitank and antipersonnel weapon, has a barrel of monobloc con­struc­tion to which is screwed a two-baffled muzzle brake. The horizontal sliding type breechblock operates semi-automatically. Recoil and counterrecoil are effected by means of a hydraulic buffer and a hydropneumatic recuperator.

The welded steel carriage has tubular trails, light alloy steel wheels with solid rubber tires, and a 5 mm spaced armor shield for the protection of the gun crew. There are two types of brakes: air brakes, which are operated from the prime mover, and hand brakes for placing the gun in firing position.

Although no sighting equipment was captured with the gun, it is assumed that there was a telescopic sight for direct fire, a sight for indirect fire, and an auxiliary open sight. Mounts for these sights are attached to the breechring and the left trunnion.

There is also a gun known as the 7.5 cm Pak 97/40. This gun consists of a French Model 1897 piece mounted on the carriage of a German 7.5 cm Pak 40, but usually on Pak 38 carriage.

A modification of this gun is used on the chassis of the Pz. Kw. II tank and the Czech Pz. Kw. 38 (t) converting these vehicles into gun motor carriages.

The 75 mm tank gun, KwK. 40, used in Pz. Kw. IV is an adaptation of the Pak 40.

SPECIFICATIONS

Caliber       75 mm (2.95 ins.)
Length of tube126.1 ins.
Weight (travelling position)3,350 lb.
Length (travelling position)19 ft.
Length of bore96.89 ins.
No. of grooves32
Width of grooves.175 in.
Depth of grooves.025 ins.
Width of lands.116 in.
Muzzle velocity (A.P.C. shell)2525 f/s
Traverse65°
Elevation+22°
Depression-5°
Length of recoil35.43 ins.
AmmunitionA.P.-H.E.-H.E. hollow charge
Wt. of projectile (A.P.C.)15 lb.

German: p. 117

l. gl. Lkw. off. (o) — Pi. Kw. III: Light Cross-Country Truck (Open)

l. gl. Lkw. off. (o) — Pi. Kw. III: Light Cross-Country Truck (Open)German nomenclature: leichter ge­län­de­gängiger Last­kraft­wagen, offen (o).
     Pionier­kraft­wagen III (leichter ge­län­de­gängiger Lkw. (o)).

English designation: Light cross-country truck, open.
     Engineers’ truck III (light cross-coun­try truck), (standard com­mer­cial chassis).

SPECIFICATIONS

Net weight       3,300 kg       7,275 lb.
Pay load1,500 kg3,307 lb.
Gross weight 4,800 kg 10,582 lb.
Weight: Front axle 1,100 kg 2,425 lb.
Weight: Rear axle 1,850 kg 4,078 lb.
Length (overall) 6,000 mm 19 ft., 8 ins.
Width (overall) 2,100 mm 6 ft., 11 ins.
Height (overall) 2,400 mm 7 ft., 10 ins.
Ground clearance 200 mm 7 7/8 ins.
Tread centers 1,600 mm 5 ft., 3 ins.
1,800 mm 5 ft., 11 ins.
Wheelbase 3,000/950 mm 118/37 ins.
Wheel width 170 mm 6 3/4 ins.
Angle of approach 60°
Angle of departure 40°
Seating capacity 12
Fording depth 600 mm 23 5/8 ins.
Climbing ability 20°
Overturn gradient (lengthwise) 50°
Overturn gradient (crosswise) 30°
Turning radius 19.5 meters 63 ft., 11 3/4 ins.
Trailer load 1,800 kg 3,968 lb.
Engine horsepower 65 c-v 64.1 hp
Piston displacement 3,500 cu cm 204 cu. ins.
Fuel tank capacity 110 liters 29 gal.
Highway fuel consumption 6.7 m.p.g.
Average terrain fuel consumption 4.7 m.p.g.

German: p. 74.25

l. Lkw. mit geschl. Aufbau (o): Light Truck

l. Lkw. mit geschl. Aufbau (o): Light TruckGerman nomenclature: leichter Last­kraft­wagen mit geschlossenem Auf­bau (o).

English designation: Light truck with locked super­structure (standard com­mer­cial chassis).

SPECIFICATIONS
Net weight        2,500 kg        5,512 lb.
Pay load 2,000 kg 4,409 lb.
Gross weight 4,500 kg 9,921 lb.
Weight: Front axle 1,500 kg 3,307 lb.
Weight: Rear axle 3,000 kg 6,614 lb.
Length (overall) 6,000 mm 19 ft., 8 ins.
Width (overall) 2,200 mm 7 ft., 3 ins.
Height (overall) 2,600 mm 8 ft., 6 ins.
Ground clearance 200 mm 7 7/8 ins.
Tread centers 1,600 mm 5 ft., 3 ins.
1,800 mm 5 ft., 11 ins.
Wheelbase 3,600 mm 142 ins.
Wheel width 170 mm 6 3/4 ins.
Angle of approach 60°
Angle of departure 40°
Seating capacity 19
Fording depth 500 mm 19 7/8 ins.
Climbing ability 15°
Overturn gradient (lengthwise) 50°
Overturn gradient (crosswise) 30°
Turning radius
Trailer load 1,000 kg 2,205 lb.
Engine horsepower 65 c-v 64.1 hp
Piston displacement 3,500 cu cm 210 cu. ins.
Fuel tank capacity 120 liters 31.7 gal.
Highway fuel consumption 5.9 m.p.g.
Average terrain fuel consumption7.8 m.p.g.

German: p. 74.25

l. Klw. off. (o): Light Commercial Truck (Open)

l. Klw. off. (o): Light Commercial Truck (Open)German nomenclature: leichter Last­kraft­wagen offen (o).

English designation: Light com­mer­cial truck, open (standard com­mer­cial ve­hicle).

SPECIFICATIONS

Net weight        3,000 kg        6,614 lb.
Pay Ioad        2,000 kg        4,409 lb.
Gross weight 5,000 kg 11,023 lb.
Weight: Front axle 1,800 kg 3,968 lb.
Weight: Rear axle 3,200 kg 7,055 lb.
Length (overall) 6,600 mm 21 ft., 7 ins.
Width (overall) 2,200 mm 7 ft., 3 ins.
Height (overall) 2,600 mm 8 ft., 6 ins.
Ground clearance 200 mm 7 7/8 ins.
Tread centers 1,600 mm 5 ft., 3 ins.
2,000 mm 6 ft., 7 ins.
Wheelbase 3,600 mm 142 ins.
Wheel width 170 mm 6 3/4 ins.
Angle of approach 50°
Angle of departure 50°
Seating capacity 20
Fording depth 500 mm 19 7/8 ins.
Climbing ability 15°
Overturn gradient (lengthwise) 50°
Overturn gradient (crosswise) 30°
Turning radius 16 meters 52 ft., 6 ins.
Trailer load 1,000 kg 2,205 lb.
Engine horsepower 65 c-v 64.1 hp
Piston displacement 3,500 cu cm 210 cu. ins.
Fuel tank capacity 120 liters 31.7 gal.
Highway fuel consumption 6.7/9.4 m.p.g.

German: p. 74.24

l. Flkw. (Kfz. 81): Antiaircraft Unit Light Car

l. Flkw. (Kfz. 81): Antiaircraft Unit Light CarGerman nomenclature: leichter Flak­kraft­wagen (Kfz. 81) mit Ein­heits­fahr­gestell II für schwerer Pkw.

English designation: Anti­air­craft unit light car with stan­dard chassis II for heavy ar­mored car.

SPECIFICATIONS

Net weight        3,150 kg        6,945 lb.
Pay load 1,250 kg 2,755 lb.
Gross weight 4,400 kg 9,700 lb.
Weight: Front axle 2,100 kg 4,630 lb.
Weight: Rear axle 2,300 kg 5,071 lb.
Length (overall) 4,850 mm 15 ft., 11 ins.
Width (overall) 2,000 mm 6 ft., 7 ins.
Height (overall) 2,040 mm 6 ft., 8 ins.
Ground clearance 230 mm 9 ins.
Tread centers 1,640 mm 5 ft., 4 ins.
Wheelbase 3,000 mm 118 ins.
Wheel width 215 mm 8 1/2 ins.
Angle of approach 55°
Angle of departure 45°
Seating capacity 8
Fording depth 500 mm 19 7/8 ins.
Climbing ability 25°
Overturn gradient (lengthwise) 45°
Overturn gradient (crosswise) 30°
Turning radius 13.5 meters 44 ft., 3 ins.
Trailer load 1,000 kg 2,205 lb.
Engine horsepower 90 c-v 88.8 hp
Piston displacement 4,000 cu cm 240 cu. ins.
Fuel tank capacity 120 liters 31.7 gal.
Highway fuel consumption 6.7 m.p.g.
Average terrain fuel consumption 5.2 m.p.g.

German: p. 74.24

Mannsch. Kw. (Kfz. 70): Personnel Carrier

Mannsch. Kw. (Kfz. 70): Personnel CarrierGerman nomenclature: Mann­schafts­kraft­wagen (Kfz. 70) mit Fahr­gestell des leichter gelände­gängiger Last­kraft­wagen (o).

English designation: Personnel carrier with special chassis for light cross-country truck (standard com­mercial vehicle).

SPECIFICATIONS
Net weight       2,600 kg       5,732 lb.
Pay load1,150 kg2,535 lb.
Gross weight 3,750 kg 8,267 lb.
Weight: Front axle 1,070 kg 2,358 lb.
Weight: Rear axle 2,790 kg 6,150 lb.
Length (overall) 4,950 mm 16 ft., 3 ins.
Width (overall) 1,950 mm 6 ft., 5 ins.
Height (overall) 2,300 mm 7 ft., 6 ins.
Ground clearance 220 mm 8 5/8 ins.
Tread centers 1,580 mm 5 ft., 2 ins.
  1,565 mm 5 ft., 1 in.
  1,565 mm 5 ft., 1 in.
Wheelbase 2,445/900 mm 96-35 in.
Wheel width 190 mm 7 1/2 ins.
Angle of approach 50°
Angle of departure 40°
Seating capacity
Fording depth 600 mm 23 5/8 ins.
Climbing ability 20°
Overturn gradient (lengthwise) 50°
Overturn gradient (crosswise) 30°
Turning radius 16 meters 52 ft., 6 ins.
Trailer load 1,000 kg 2,205 lb.
Engine horsepower 65 c-v 64.1 hp
Piston displacement 3,500 cu cm 210 cu. ins.
Fuel tank capacity 110 liters 29 gal.
Highway fuel consumption7.8 m.p.g.
Average terrain fuel consumption4.7 m.p.g.

German: p. 74.22

Protzkw. (Kfz. 69): Limber Truck

Protzkw. (Kfz. 69): Limber TruckGerman nomenclautre: Protzkraftwagen (Kfz. 69) mit Einheitsfahrgestell II für schwerer Pkw.

English designation: Limber truck with standard chassis II for heavy armored car.

SPECIFICATIONS
Net weight       3,150 kg       6,944 lb.
Pay load1,050 kg2,314 lb.
Gross weight 4,200 kg 9,258 lb.
Weight: Front axle 2,000 kg 4,409 lb.
Weight: Rear axle 2,200 kg 4,850 lb.
Length (overall) 4,850 mm 15 ft., 11 ins.
Width (overall) 2,000 mm 6 ft., 7 ins.
Height (overall) 2,040 mm 6 ft., 8 ins.
Ground clearance 230 mm 9 ins.
Tread centers 1,640 mm 5 ft., 4 ins.
Wheelbase 3,000 mm 118 ins.
Wheel width 215 mm 8 1/2 ins.
Angle of approach 55°
Angle of departure 45°
Seating capacity 5
Fording depth 500 mm 19 7/8 ins.
Climbing ability 25°
Overturn gradient (lengthwise) 45°
Overturn gradient (crosswise) 45°
Turning radius 16.5 meters 54 ft., 1/8 in.
Trailer load 1,000 kg 2,205 lb.
Engine horsepower 90 c-v 88.8 hp
Piston displacement4,000 cu cm 240 cu. ins.
Fuel tank capacity 120 liters 31.7 gal.
Highway fuel consumption6.7 m.p.g.
Average terrain fuel consumption5.2 m.p.g.

German: p. 74.22

Protzkw. (Kfz. 69): Maintenance Truck

Protzkw. (Kfz. 69): Maintenance TruckGerman nomenclature: Protz­kraft­wagen (Kfz. 69) mit Fahr­gestell des leichter gelände­gängiger Last­kraft­wagen (o).

English designation: Maintenance truck with special chassis for light cross-country truck (standard commercial ve­hicle).

SPECIFICATIONS

Net weight       2,700 kg       5,952 lb.
Pay load1,000 kg2,204 lb.
Gross weight 3,700 kg 8,157 lb.
Weight Front axle 1,070 kg 2,358 lb.
Weight: Rear axle 1,315 kg 2,899 lb.
Length (overall) 5,000 mm 16 ft., 5 ins.
Width (overall) 1,900 mm 6 ft., 3 ins.
Height (overall) 1,800 mm 5 ft., 11 ins.
Ground clearance 220 mm 8 5/8 ins.
Tread centers 1,580 mm 5 ft., 2 ins.
  1,565 mm 5 ft., 1 in.
  1,565 mm 5 ft., 1 in.
Wheelbase 2,445/900 mm 96/35 ins.
Wheel width 190 mm 7 1/2 ins.
Angle of approach 50°
Angle of departure 40°
Seating capacity
Fording depth 600 mm 23 5/8 ins.
Climbing ability 20°
Overturn gradient (lengthwise) 50°
Overturn gradient (crosswise) 30°
Turning radius 16 meters 52 ft., 6 ins.
Trailer load 1,000 kg 2,205 lb.
Engine horsepower 65 c-v 64.1 hp
Piston displacement 3,500 cu cm 210 cu. ins.
Fuel tank capacity 1.10 liters 29 gal.
Highway fuel consumption 7.8 m.p.g.
Average terrain fuel consumption 4.7 m.p.g.

German: p. 74.21

Kr. Kw. (Kfz. 31): Ambulance

Krankenkraftwagen: Kr. Kw. (Kfz. 31): AmbulanceGerman nomenclature: Kranken­kraft­wagen (Kfz. 31) mit Ein­heits­fahr­gestell II für schwerer Pkw.

English designation: Ambulance with stan­dard chassis II for heavy armored car.

SPECIFICATIONS

Net weight        3,050 kg        6,724 lb.
Pay loan 1,200 kg 2,645 lb.
Gross weight 4,250 kg 9,368 lb.
Weight: Front axle 2,000 kg 4,409 lb.
Weight: Rear axle 2,250 kg 4,960 lb.
Length (overall) 4,850 mm 15 ft., 11 ins.
Width (overall) 2,000 mm 6 ft. 7 ins.
Height (overall) 2,100 mm 6 ft., 10 ins.
Ground clearance 230 mm 9 ins.
Tread centers 1,640 mm 5 ft., 4 ins.
Wheelbase 3,000 mm 118 ins.
Wheel width 215 mm 8 1/2 ins.
Angle of approach 55°
Angle of departure 45°
Seating capacity 9
Fording depth 500 mm 19 7/8 ins.
Climbing ability 25°
Overturn gradient (lengthwise) 45°
Overturn gradient (crosswise) 50°
Turning radius 13.5 meters 44 ft., 3 ins.
Trailer load 1,000 kg 2,205 lb.
Engine horsepower 90 c-v 88.8 hp
Piston displacement 4,000 cu cm 240 cu. ins.
Fuel tank capacity 120 liters 31.7 gal.
Highway fuel consumption 6.7 m.p.g.
Average terrain fuel consumption 5.2 m.p.g.

German: p. 74.21