Tag Archive for 'tractor'

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m. Rd. Schlp. (o): Medium Tractor

m. Rd. Schlp. (o): Medium TractorGerman nomenclature: mittlerer Rad­schlep­per (o).

English designation: Medium tractor (stan­dard commercial vehicle).

SPECIFICATIONS

Net weight         3,800 kg         8,377 lb.
Weight: Front axle 900 kg 1,984 lb.
Weight: Rear axle 2,900 kg 6,393 lb.
Length (overall) 3,500 mm 11 ft., 6 ins.
Width (overall) 2,000 mm 6 ft., 7 ins.
Height (overall) 2,200 mm 7 ft., 2 ins.
Ground clearance 250 mm 9 7/8 ins.
Tread centers 1,500 mm 4 ft., 11 ins.
  1,600 mm 5 ft., 3 ins.
Wheelbase 2,200 mm 86 ins.
Wheel width 260 mm 10 1/4 ins.
Angle of approach 90°
Angle of departure 60°
Seating capacity 1
Fording depth 500 mm 20 ins.
Climbing ability
Overturn gradient (lengthwise) 45°
Overturn gradient (crosswise) 40°
Turning radius 11 meters 36 ft., 1 in.
Engine horsepower 45 c-v 44.4 hp
Piston displacement 6,000 cu cm 360 cu. ins.
Fuel tank capacity 150 liters 39.6 gal.
Highway fuel consumption 4.7-6.7 m.p.g.
Average terrain fuel consumption

German: p. 74.56

l. Rd. Schlp. (o): Light Tractor

l. Rd. Schlp. (o): Light TractorGerman nomenclature: leichter Rad­schlep­per (o).

English designation: Light tractor (stan­dard commercial vehicle).

SPECIFICATIONS

Net weight         2,000 kg         4,409 lb.
Pay load
Gross weight 2,000 kg 4,409 lb.
Weight: Front axle 700 kg 1,543 lb.
Weight: Rear axle 1,300 kg 2,866 lb.
Length (overall) 3,400 mm 11 ft., 2 ins.
Width (overall) 1,800 mm 5 ft., 11 ins.
Height (overall) 1,700 mm 5 ft., 7 ins.
Ground clearance 200 mm 7 7/8 ins.
Tread centers 1,300 mm 4 ft., 3 ins.
  1,450 mm 4 ft., 9 ins.
Wheelbase 2,220 mm 87 ins.
Wheel width 230 mm 9 ins.
Angle of approach 90°
Angle of departure 50°
Seating capacity 1
Fording depth 450 mm 18 ins.
Climbing ability
Overturn gradient (lengthwise)
Overturn gradient (crosswise) 35°
Turning radius 9 meters 29 ft., 6 ins.
Engine horsepower 25 c-v 24.7 hp
Piston displacement 3,500 cu cm 210 cu. ins.
Fuel tank capacity 120 liters 31.7 gal.
Highway fuel consumption 5.9-7.8 m.p.g.
Average terrain fuel consumption

German: p. 74.56

l. R.-Schlepper (Praga T 3): Light Full-Tracked Prime Mover

l. R.-Schlepper (Praga T 3): Light Full-Tracked Prime Mover: leichter RaupenschlepperGerman nomenclature: leichter Raupen­schlepper (Praga T 3).

English designation: Light full-tracked prime mover.

SPECIFICATIONS
Net weight       4,650 kg       10,249 lb.
Pay load550 kg1,652 lb.
Gross weight5,400 kg11,902 lb.
Length (overall) 4,100 mm 13 ft., 5 ins.
Width (overall) 1,730 mm 5 ft., 8 ins.
Height (overall) 2,300 mm 7 ft., 6 ins.
Ground clearance 400 mm 15 3/4 ins.
Tread centers 1,420 mm 4 ft., 8 ins.
Track contact 2 m 79 ins.
Track width 300 mm11 7/8 ins.
Angle of approach
Angle of departure
Seating capacity 3
Fording depth 550 mm21 5/8 ins.
Climbing ability 30°
Overturn gradient (lengthwise)40°
Overturn gradient (crosswise)30°
Turning radius 3 meters118 ins.
Trailer load 1,800 kg 3,967 lb.
Lifting power of winch 3,000 kg6,612 lb.
Engine horsepower70 c-v 65 hp
Piston displacement4,300 cu cm258 cu. ins.
Fuel tank capacity 150 liters39.6 gal.
Highway fuel consumption2.93 m.p.g.
Average terrain fuel consumption 2.14 m.p.g.

German: p. 74.58

m. Kett. Schlp. (o): Medium Tractor

m. Kett. Schlp. (o): Medium Tractor: mittlerer KettenschlepperGerman nomenclature: mittlerer Ketten­schlepper (o).

English designation: Medium tractor (stan­dard commercial vehicle).

SPECIFICATIONS
Net weight       4,600 kg       10,194 lb.
Length (overall) 3,300 mm 10 ft., 10 ins.
Width (overall) 1,550 mm 5 ft., 1 in.
Height (overall) 1,450 mm 4 ft., 9 ins.
Ground clearance 270 mm 10 ft., 10 ins.
Tread centers 1,300 mm 4 ft., 3 ins.
Track contact 1.1 m43 ins.
Track width 300 mm 11 7/8 ins.
Angle of approach 40°
Angle of departure 70°
Seating capacity
Fording depth 600 mm 23 ins.
Climbing ability 35°
Overturn gradient (lengthwise) 45°
Overturn gradient (crosswise) 40°
Turning radius 7 meters 22 ft., 11 ins.
Trailer load 6,000 kg 13,227 lb.
Lifting power of winch 3,000 kg 6,614 lb.
Engine horsepower 65 c-v 64.1 hp
Piston displacement 9,000 cu cm 540 cu. ins.
Fuel tank capacity 90 liters 23.8 gal.
Highway fuel consumption 3.9 m.p.g.
Average terrain fuel consumption

German: p. 74.58

Raupenschlepper OST (Steyr typ RSO/01): Full Track Light Prime Mover

Raupenschlepper OST (Steyr RSO): Full Track Light Prime Mover

The German full track truck has recently appeared on the battlefield as a supply vehicle and prime mover. Basically it is a tracked version of the Steyr 1½-ton truck. Designed to operate in mud and soft terrain, it has a tractive effort in first gear of 6,700 pounds, and carries a load of 3,360 pounds. This truck averages 3 to 5.5 miles per gallon of fuel.

The chassis is of rectangular form and welded construction and supports a forward-mounted, pressed-steel driving cab behind which is mounted a wooden truck body. A spring-loaded pintle is fitted at the rear and towing hooks in front.

The V-8 air-cooled gasoline engine made by Steyr develops about 70 hp. at 2,500 r.p.m. and is mounted in the floor of the driving cab. The drive is taken through a single plate clutch built on the flywheel to the transmission which has four silent forward gears and one reverse. There is a differential with a lock incorporated at the rear, and a reduction gear to the rear sprockets.

The suspension consists of four large pressed-steel disk wheels on each side which return the track. They are mounted in pairs and attached to a common even lever at each side and joined in the center by a cross member. A quarter elliptic spring anchored at each corner of the chassis is attached one to each end of the two common even levers. Steering is accomplished through upright steering levers to four hydraulic brakes on the sprockets and idlers.

SPECIFICATIONS

Weight        7,728 lb. (unladen)
Length 14 ft., 6 ins.
Width 6 ft., 6 ins.
Height 8 ft., 6 ins.
Ground clearance 22 ins.
Tread centers
Ground contact
Width of track 13 ins. (with snow plates, 24 ins.)
Track links
Pitch of track
Fording depth 34 ins.
Theoretical radius of action
   Roads 155 miles (est.)
   Cross-country
Speed
   Roads 11 m.p.h.
   Cross-country 11 m.p.h.
Armor
   Front plate
   Sides
Armament
Ammunition (rds.)
Engine Steyr air-cooled 70 hp.
Transmission 4 speeds forward, 1 reverse
Steering Steering levers to hydraulic brakes
Crew 2

German: p. 57

“Kato” 70 Artillery Tractor

Japanese Kato 70 Artillery TractorThis is a slow speed tractor equipped with a towing hook and is believed to be the standard Japanese artillery prime mover. There are two bogies on each side, each bogie having three bogie wheels, two bearing on the outside and one on the middle of the tractor. Clutch and brake steering are provided. The power plant is a 4-cylinder, water-cooled, gasoline engine. The cylinder block is of two separate sections. Each section is joined into one piece at the top, but the base of each cylinder is separate from all other cylinders.

SPECIFICATIONS

Weight
Winch capacity
Length
Wheel base        85 ins.
Diameter of drive sprocket 26 ins.
Width of track 13 3/4 ins.
Length of track in contact with ground 89 ins.
Width of tread (from outside edge of tracks) 67 ins.
Engine Kato, K-3, 70 h.p.
Bore 4.75 ins.
Stroke 6 ins.

Japanese: p. 18.6 (August 1, 1945)

Armored Tank Recovery Vehicle

Japanese Armored Tank Recovery Vehicle

This is an armored, self-propelled crane designed to retrieve damaged A.F.V.’s up to a weight of about 12 tons. The manufacturing date of one recovered specimen is given as 1941. The crane is mounted towards the rear of the chassis on a platform traversing through 360° on an electrically powered turntable. The crane is prowered by the main engine through a drive shaft from the transmission to a gear box and thence through another box to the cable drums. The crane is controlled by three hand levers and three foot control clutches. When not in use, the boom which has a total length of 18 ft., 2 ins., rests on the top of the drive compartment and is held in place by two screw clamps. The conventional Japanese type of suspension is used. Four bell cranks are resisted by four armored compression springs per side. Eight-and-one-half-inch dual steel bogie wheels per side are mounted four inches apart and paired to each bogie. An 18 13/16-inch diameter double-tooth front drive sprocket, a rear idler, two 10 3/4-inch diameter rubber-covered return rollers, and the center guide steel track complete the suspension.

The driver’s compartment measures 45 1/2 x 59 inches, and is fitted with a door on the right side. The 6-cylinder, in-line, air-cooled, Ikegai gasoline engine delivers 60 horsepower. The steering system is of the clutch brake principle, a separate spring-loaded clutch being fitted to each track. Two pressed steel fuel tanks are located at the right rear of the hull; an additional one is utilized as the driver’s seat. They have a combined estimated capacity of 40 gallons.

SPECIFICATIONS

Weight        8 1/4 tons
Trailer load capacity
Length 14 ft., 4 1/2 ins.
Width 6 ft., 7 ins.
Height (to top of vehicle) 5 ft., 3 ins.
         (to top of jib) 6 ft., 9 ins.
Ground clearance 11 ins.
Tread centers
Ground contact 11 ft., 4 ins.
Track width 9 3/4 ins.
Track links
Fuel tank 40 gals. (est.)
Fuel consumption
Fording depth
Speed 21 m.p.h.
Engine Ikegai, gasoline, 6-cylinder, in-line, air-cooled, 60 hp.
Transmission
Steering Clutch brake
Crew 2
Armor
   Front 1/4 in.
   Sides 5/16 in.
Length of cable drums 10 1/4 ins.
Diameter of cable drums 10 1/2 ins.
Diameter of cables 3/4 in. (approx.)
Overall length of boom 18 ft., 2 ins.

Japanese: p. 18.5 (August 1, 1945)

Combination Prime Mover and Wrecker

Combination Prime Mover and Wrecker - Japanese WWII Tractor

This vehicle, in addition to its function as a prime mover and wrecker, may have been used as a tank recovery vehicle. It has a total seating capacity of thirteen men. Two front booms are provided, and a removable boom at the rear. The latter can be attached in such a manner as to act as a brace for the vehicle. The front booms, which are traversed by gears, are moved and operated independently by two different operators. There is a large towing winch behind the driver’s seat, and two smaller winches near the front end.

The prime mover/wrecker has been derived in part from components of the Japanese Medium Tank. There are five bogies on each side, four of which are mounted in pairs. Each pair connects to a coil spring, and the front bogie wheel is independently sprung by a separate coil spring. The drive sprocket is smaller than that employed in the Medium Tank.

The vehicle is powered by a 6-cylinder, valve-in-head, air-cooled Diesel engine located in the rear. The engine head is made of aluminum. There are two fuel tanks which have a capacity of thirty gallons each. The clutch, a single plate type, is housed in an aluminum clutch housing. The transmission provides four speeds forward and one in reverse. The power takeoff of the winches is from the transmission. The final drive system is quite unusual in that there are two separate drive shafts, and each track is driven by an independent final drive mechanism. Removable track grousers are supplied for use in difficult terrain.

SPECIFICATIONS

Weight
Trailer load capacity
Winch capacity
Length (overall)        20 ft., 8 ins.
Length (less arms) 17 ft.
Width 7 ft., 5 1/2 ins.
Height 7 ft., 11 ins.
Ground clearance 16 ins.
Tread centers 6 ft., 4 ins.
Ground contact 9 ft., 11 ins.
Track width 12 ins.
Track links
Fuel tanks 2—30 gals. each
Fuel consumption
Fording depth
Speed
Engine 6 cyl. valve in head, air-cooled Diesel
Bore and stroke 5.5 ins. x 6.5 ins.
Horsepower
Ignition
Battery 2—12 v.
Transmission 4 speeds forward, 1 reverse
Steering
Crew

Japanese: p. 18.2 (April 1, 1945)

Armored Prime Mover

Armored Prime Mover - World War II, Japanese

The chassis of this Japanese armored prime mover incorporates the better design features of the tankette development shown on pages one to three. This vehicle is an important link in the chain of Japanese transportation of personnel and supply in the large mainland areas. Its construction proves that the Japanese attach considerable importance to the interchange and utilization of standard tank component parts on combat vehicles for greater simplification of their supply problem.

The hull provides for a layout of the engine and power train on the right, while the driver’s compartment is located on the left side. A large load and stowage compartment at the rear extends over the tracks. Tubular bows are raised for protective covering and camouflage nets. Double doors open at the rear, below which a towing pintle is attached. There is no main armament; however, there is an observation turret built in the roof of the crew compartment behind the driver. Speaking tubes with ear phones are used for crew communication. Four hinged flap-covered openings provide additional vision for the crew and allow employment of small arms weapons.

The power train in this vehicle is made up of the engine, four-speed and reverse transmission, controlled differential with steering brakes and a final drive single reduction gear. The engine is a four-cylinder in-line diesel with Bosch type automatic fuel injection. A 12-volt ignition system is also provided with spark plugs located in the fuel injection ports. The electrical system utilizes parts standard and interchangeable with other vehicles. Two fuel tanks hold 38 gallons.

SPECIFICATIONS

Weight       5 tons
Length 12 ft., 8 ins.
Width 6 ft., 4 ins.
Height 5 ft., 2 ins.
Ground clearance 14 ins.
Tread centers
Ground contact 124 ins.
Width of track 8 ins.
Pitch of track 3 ins.
Track links 88
Fording depth 31 ins.
Theoretical radius of action
   Roads
   Cross-country
Speed
   Roads 28 m.p.h.
   Cross-country
Armor
   Front plate 6 mm
   Sides 12 mm
   Floor 12 mm
Armament Small arms weapons
Ammunition (Rds.) Unknown
Engine 4-cylinder air-cooled OHV Diesel
Transmission 4 speeds forward; 1 reverse
Steering Controlled differential
Crew 2

Japanese: p. 18.1

13-Ton Prime Mover Model 95B (1935)

13-Ton Prime Mover Model 95B (1935)

This prime mover makes use of the same chassis as the Model 95A, the only difference being its accommodation of a 6-cylinder, in-line, water-cooled, valve-in-head Diesel engine. The cylinder diameter is 140 mm, the piston stroke 190 mm, and compression ratio 15.5:1. The normal horsepower is rated at 145 at 1,300 r.p.m. Maximum hp. is 165. The firing order is 1-5-3-6-2-4. There is a 24-v., 300-w. capacity charging generator, two 12-v., 80 amp.-hr. batteries, and two 24-v., 6-hp. electric starting motors.

Details are lacking on the reduction gear, which has a ratio of 2.92:1. The steering system is of the clutch brake type assisted on short turns by hand- and foot-operated control brakes, which include a locking feature. The transmission is said to be synchromesh with 4 speeds forward and 1 reverse. The maximum speedis 8.68 m.p.h. A gear-type forced-feed system is used for distributing lubricating oil in the crankcase. An oil pressure gage and oil-level stick are also fitted. Diesel oil fuel is supplied from a total storage capacity of 68 gals. Forty-four liters (11.6 gals.) of water are circulated from the radiator to the engine block with the normal type pump. This vehicle is said to be capable of ascending a 15° grade while towing a 14-ton load, or a 7 1/2° grade pulling a 32-ton load. The winch capacity is 11 tons.

SPECIFICATIONS

Weight       15 tons
Trailer load capacity 32 tons
Winch capacity 11.25 tons
Length 16 ft.
Width 7 ft., 6 ins.
Height 9 ft., 3 ins.
Ground clearance 1 ft.
Tread centers 5 ft., 11 ins.
Ground contact 10 ft., 4 ins.
Track width 16 1/2 ins.
Track links
Fuel tank 68 gals.
Fuel consumption
Fording depth
Speed 8.6 m.p.h.
Engine 6-cyl., water-cooled, Diesel
Bore and stroke 140 mm x 190 mm—5.51 ins. x 7.48 ins.
Horsepower 145 at 1,300 r.p.m.
Ignition Diesel
Battery 2 12-v., 80 amp./hr.
Transmission Synchromesh—4 speeds forward, 1 reverse
Steering Clutch brake
Crew

Japanese: p. 18 (May 1, 1945)