Tag Archive for 'tractor'

kl. K. Kw. (Sd. Kfz. 2): Motorcycle Tractor

Kettenkrad - kl. K. Kw. (Sd. Kfz. 2): Motorcycle Tractor

The invasion of Crete (1941) revealed for the first time the use by the Germans of the motorcycle tractor. This vehicle, which retains the standard front wheel and handle bars of a normal motorcycle with the rear wheel replaced by two caterpillar tracks, is used primarily for towing light guns and supply, trailers, and for carrying dispatches in localities where difficult terrain precludes the use of wheeled vehicles. The mobility of this vehicle is as good as most tanks and its ability as a light prime mover, because of its wide gear selection, is excellent. Without load attached it has a maximum speed of 45 m.p.h. on level ground, and is capable of climbing 60 per cent grade.

The chassis is a boxlike structure of pressed steel in two sections, welded together in a horizontal plane below the track guards. It contains the driving compartment, engine, and a transverse seat accommodating two men facing the rear. A hand rail is provided on each side of the back. The driver is seated on a saddle seat directly above the transmission and clutch housing. Gasoline tanks are mounted on each side and, together with the battery and tool compartments, make up the side walls of the vehicle.

Power is furnished by the centrally mounted Opel Olympia 4-cylinder, water-cooled gasoline engine developing 37 gross B.H.P. in a displacement of 91.5 cu. in. Cooling is accomplished by a radiator, with a shaft-driven fan coupled to the crankshaft, at the rear. Six forward and two reverse speeds are available.

The suspension consists of four straddle-mounted, rubber-tired bogie wheels on torsion bars, a front driving sprocket, and a rear idler. The inner bogie wheels are of the hollow-spoke type while the outer wheels are of the removable disk type. The track, made up of 40 links per strand, is equipped with needle bearings and replaceable rubber pads.

SPECIFICATIONS

Weight         3,400 lb. (combat)
Weight 2,700 lb. (empty)
Length 9 ft., 10 ins.
Width 3 ft., 3 1/2 ins.
Height 3 ft., 11 ins.
Ground clearance 9 ins.
Tread centers 2 ft., 8 ins.
Ground contact 2 ft., 8 ins. (approx.)
Width of track 6.7 ins.
Pitch of track 4 3/4 ins.
Track links 40
Fording depth 20 ins. (approx.)
Theoretical radius of action
     Roads 155 miles
     Cross-country 100 miles
Speed
     Road 45 m.p.h.
     Cross-country 25-30 m.p.h.
Trailer load 980 lb. (normal weight)
Size of front tire 3.50 x 19
Engine Opel, 37 hp.
Transmission 3 speeds forward, 1 reverse with high and low range
Steering Controlled differentially, mechanical brakes
Crew 2 (driver and helper)

German: p. 50

l. Zgkw. 1t (Sd. Kfz. 10): Light Semitrack Prime Mover

l. Zgkw. 1t (Sd. Kfz. 10): Light Semitrack Prime Mover

This vehicle is used as a troop carrier and for towing light artillery and supply trailers. Accommodation for a crew of seven, including driver, is provided in the well of the body, the sides of which are sufficiently deep to obscure personnel to shoulder height when seated. With all inspection hatches of the hull closed the main body of the vehicle is practically watertight in traversing deep water.

The chassis of this vehicle is used for several specialized mountings: (1) for the 2 cm Flak 30 gun; (2) for gas-detector truck (Sd. Kfz. 10/1); (3) for light decontamination vehicle (Sd. Kfz. 10/2) carrying a hopper for spreading bleaching powder; (4) for light bulk contamination vehicle (Sd. Kfz. 10/3) fitted with a tank for blister gas and spraying device.

The power plant of the later models consists of a Maybach H.L. 42 T.R.K.M. straight-six, water-cooled engine rated at 100 horsepower. The Maybach N.L. 38 T.R.K.M. rated at 95 horsepower was formerly used. The power train is comprised of the twin-plate clutch, the preselective type transmission with four forward and one reverse speeds with high and low range, and the differential unit of spur-gear and pinion type. Steering is effected by normal steering wheel for turns under 15°; turns over 15° are negotiated by the combined action of turning the front wheels and braking the appropriate epicyclic-drive sprocket by means of the steering brakes mounted on the driving shaft.

The pneumatic-tired front wheels are of the disk type and are fitted on a normal type axle suspended by a single transverse semi-elliptic spring. Two hydraulic shock absorbers are fitted. Each of the flexible rear tracks is borne by a driving sprocket at the front end and an idler wheel at the rear, while between these are five pairs of pressed-steel, rubber-tired bogie wheels.

SPECIFICATIONS

Weight         3.7 tons
Length 15 ft., 7 ins.
Width 6 ft.
Height 5 ft., 3 ins.
Ground clearance 13 ins.
Tread centers 5 ft., 2 ins.
Ground contact 4 ft., 6 ins.
Width of track 9.4 ins.
Track links 41
Pitch of track 6.25 ins.
Fording depth 27 ins.
Theoretical radius of action
     Roads 176 miles
     Cross-country 93 miles
Speed
     Roads 40 m.p.h.
     Cross-country 25 m.p.h.
Trailer load 1.1 ton
Engine Maybach HL 42 TRKM—100 hp.
Transmission 4 forward speeds, 1 reverse, high and low range
Steering Over 15° epicyclic
Crew 7

German: p. 51

Motor-Karrete (Austro-Daimler) ADMK: Wheeled/Tracked Reconnaissance Vehicle

Motor-Karrete (Austro-Daimler) ADMK: Wheeled/Tracked Reconnaissance Vehicle

The German wheeled/tracked reconnaissance vehicle is particularly effective in steep and hilly terrain, and in swamps and marshy lowlands where high traction and light weight are desirable. The personnel-carrying capacity is six, and it is capable of towing a trailer load of 2,640 pounds. The Motor-Karrete is capable of operating as a wheeled vehicle and will turn on a radius of 27 feet. It can also operate as a half track vehicle with a turning radius of 8 feet, 2 inches. As a full track vehicle its turning radius is 6 feet, 8 inches.

The three adaptations are accomplished by raising or lowering the front wheels which appear to be mounted on a bell-crank, torsion-type front axle, while the rear wheels (when dismounted from the rear suspension) are mounted on a false axle supported above the rear of the vehicle. The dry-pin steel track is guided from the outside center over a single-tooth front sprocket and a single-flange rear idler. Four small bogie wheels articulate in pairs on a common structure attached to the rear axle. The suspension includes semi-elliptic spring over the rear axle, while rotation of the vehicle is stabilized by a quarter elliptic spring from the front sprocket axle.

The 20 hp. engine is mounted in the rear. The fuel tank capacity is 10 gallons and fuel consumption on highways is 14 m.p.g.—on average terrain 6.8 m.p.g.

The net weight of the vehicle is 3,806 pounds; combat weight, 5,060 pounds. The weight distribution is: front axle 990 pounds; rear axle 4,070 pounds.

SPECIFICATIONS

Weight        3,806 lb.
Length 12 ft.
Width 5 ft.
Height 4 ft., 9 ins.
Ground clearance Unknown
Tread centers (wheel, 50 ins.), (track, 34 ins.)
Ground contact 53 ins.
Width of track 7.5 ins. (wheel, 5.5 ins.)
Track links 70
Pitch of track
Fording depth 20 ins.
Theoretical radius of action
     Roads 124 miles
     Cross-country 68 miles
Speed
     Roads
     Cross-country
Armor
     Front plate
     Sides
Armament
Ammunition (rds.)
Engine 20 hp.
Transmission
Steering
Crew 6

German: p. 49

s. Zgkw. 18t (Sd. Kfz. 9): Heavy Semitrack Prime Mover

s. Zgkw. 18t - Sd.Kfz. 9: Heavy Semitrack Prime Mover

This 18-ton vehicle is the heaviest of the German semitrack prime movers. It is often used by the Germans in the evacuation of their damaged tanks. It has a net weight of 16.8 tons and a combat weight of 19.8 tons. Its personnel capacity is 8, including driver and helper, and it can tow a trailer load of 20 tons. The maximum highway range of action is 160 miles on a fuel tank capacity of 72 gallons. Its weight distribution is as follows: front wheels, 5,289 pounds; track, 34,320 pounds.

The front suspension is comprised of a tubular floating axle mounting two pneumatic-tired, heavy duty wheels with transverse leaf springing. The track suspension is the standard semitrack system consisting of straddle-mounted rubber-tired bogie wheels sprung on torsion bars housed in cross tubes; front sprocket, rear idler, and needle-bearing track.

The power plant is the V-12 cylinder, Maybach gasoline engine rated at 230 horsepower. The transmission provides four speeds forward and one reverse with high and low range. Steering is effected by normal steering wheel and an epicyclic-controlled differential drive for the track with a brake linkage connected to the front-wheel steering system.

In addition to the electric starter, this vehicle is also equipped with a Bosch airplane-type inertia starter located on the right side of the engine.

A power winch is located at the rear, with facilities for passing the cable beneath the vehicle and out the front end. The winch-driving mechanism and the drum are located near the center of the chassis. The drum is horizontal and is driven by a propeller shaft from the rear of the transmission. The hub of the winch-driving mechanism is fitted with a slide gear which enables the operator to engage and disengage the winch from the rear of the vehicle. The winch-lifting capacity is 7.7 tons.

SPECIFICATIONS

Weight         16.8 tons
Length 27 ft.
Width 8 ft.. 6 ins.
Height 9 ft., 1 in.
Ground clearance 21 ins.
Tread centers (wheels, 82 ins.; track, 78 ins.)
Ground contact 9 ft., 4 ins.
Width of track 17.3 ins.
Track links 47
Pitch of track
Fording depth 30 ins.
Theoretical radius of action
     Roads 161 miles
     Cross-country 62 miles
Speed
     Roads
     Cross-country
Armor
     Front plate
     Sides
Armament
Ammunition
Engine Maybach HL 98 TUK, 230 hp.
Transmission 4 speeds forward, 1 reverse, high and low range
Steering Normal and epicyclic-controlled differential
Crew 8

German: p. 56

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

l. Kett. Schlp. (o): Light TractorGerman nomenclature: leichter Ketten­schlepper (o).

English designation: Light tractor (stan­dard commercial vehicle).

SPECIFICATIONS
Net weight       3,500 kg       7,716 lb.
Pay load
Gross weight
Weight: Front axle
Weight: Rear axle
Length (overall) 3,100 mm 10 ft., 2 ins.
Width (overall) 1,550 mm 5 ft., 1 in.
Height (overall) 2,300 mm 7 ft., 6 ins.
Ground clearance 310 mm 12 1/2 ins.
Tread centers 1,300 mm 4 ft., 3 ins.
Track contact 0.85 m 33 1/2 ins.
Track width 300 mm 11 7/8 ins.
Angle of approach 40°
Angle of departure 65°
Seating capacity
Fording depth 700 mm 27 ins.
Climbing ability 30°
Overturn gradient (lengthwise) 45°
Overturn gradient (crosswise) 40°
Turning radius 7 meters 22 ft., 11 ins.
Trailer load 5,000 kg 11,023 lb.
Lifting power of winch 3,000 kg 6,614 lb.
Engine horsepower 45 c-v 44.4 hp
Piston displacement 5,500 cu cm 330 cu. ins.
Fuel tank capacity 65 liters 17.2 gal.
Highway fuel consumption6.7 m.p.g.
Average terrain fuel consumption4.7 m.p.g.

German: p. 74.57

s. Rd. Schlp. (o): Heavy Tractor

s. Rd. Schlp. (o): Heavy TractorGerman nomenclature: schwerer Rad­schlep­per (o).

English designation: Heavy tractor (stan­dard commercial vehicle).

SPECIFICATIONS
Net weight       6,450 kg       23,147 lb.
Pay load
Gross weight
Weight: Front axle 2,370 kg 7,209 lb.
Weight: Rear axle 4,170 kg 9,193 lb.
Length (overall) 5,545 mm 18 ft., 2 ins.
Width (overall) 2,460 mm 8 ft.
Height (overall) 2,420 mm 7 ft., 11 ins.
Ground clearance 270 mm 10 5/8 ins.
Tread centers 1,908 mm 6 ft., 2 ins.
  1,836 mm 6 ft.
Wheelbase 3,000 mm118 ins.
Wheel width 300 mm11 7/8 ins.
Angle of approach 40°
Angle of departure 17°
Seating capacity 5
Fording depth
Climbing ability
Overturn gradient (lengthwise)50°
Overturn gradient (crosswise)35°
Turning radius 10.5 meters 34 ft., 5 ins.
Trailer load 15,000 kg 33,069 lb.
Engine horsepower 100 c-v 98.6 hp
Piston displacement 8,553 cu cm 513 cu. ins.
Fuel tank capacity 350 liters 92.4 gal.
Highway fuel consumption5.2 m.p.g.
Average terrain fuel consumption3.9 m.p.g.

German: p. 74.57

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