AEC Mammoth Lorry history

Manufacturer:	Associated Equipment Company
Production period:	1930 to 1978
Type	commercial vehicle
Body	Truck various
Engines:	diesel engines

The AEC Mammoth was a heavy truck produced by the British manufacturer Associated Equipment Company (AEC) from 1930 to 1978 in various designs. A distinction is in principle made between the three-axle AEC Mammoth Minor with the wheel formula 6 × 2, the three-axle AEC Mammoth Major 6 with the wheel formula 6 × 4 and the four-axle AEC Mammoth Major 8 with the wheel formula 8 × 4 × 4.

History 

1930s

The first AEC Mammoth , still without the addition Minor , appeared in 1930 with the type designation 667 . The Mammoth Major followed in 1931 with the type designation 668 . The trucks were as axle vehicles with forward-control - cab designed. The Mammoth Major was built under the type designation 266 / O266 as Langhauber. With a wheelbase of 16  feet and 7 inches, they had a gross mass of about 7-8 tons. The vehicles were powered by a six-cylinder engine with a power of 110  bhp . 

1934 followed the four-axle AEC Mammoth Major 8 , which could carry a payload of 15 tons. Neither the condition of the roads at the time nor existing technologies allowed for high axle loads . The only way to increase the payload was therefore to increase the number of axles. The concept of the four-axle truck was first introduced in 1929 in steam-powered vehicles. The Mammoth and the AEC Mammoth Major 8 remained in production until 1935, the Mammoth Major until 1939.

1940s 1950s

The first generation was replaced by the series 366 (three-axle) and 386 (four-axle) from 1935, which were produced until 1948. This also designated as Mk II series was replaced in 1948 by the Mk III. Constructively similar design, the new vehicles now had a front handlebar assembly by Park Royal . After the takeover of the competitor Maudslay in 1948 AEC offered the Mammoth for a while under this name. At the Commercial Motor Show in 1958, AEC introduced Mk V before  The Mk V differed from its predecessors by a new cab, new engines, recessed front axles, an improved brake system and a new rear axle construction. The older Mk III was manufactured 18 months in parallel with the new version before its production was finally discontinued. One of the four-axle's largest customers was British Road Services . Mk V built more than 6000 pieces.

1960s

1965 appeared the last series of Mammoth with a new cab. This cab called ergomatic cab , also available for other trucks , had already been introduced by AEC at the 1964 London Motor Show . For the first time also a three-axle with two steerable front axles was offered.

TG6RB, TG6RBE, TG6LB and TG8RB:Double drive, double reduction spiral bevel axles and lockable inter-axle differential, fully articulated suspension, with worm and nut steering on TG6RB, TG6RBE, TG6LB and cam and roller steering on TG8RB.

TG6RNE:Double drive, single reduction spiral bevel axles, with lockable inter-axle differential and power divider on leading axle, four spring rear suspension and worm and nut steering.
TG8RT:Double drive, double reduction spiral bevel axles and lockable inter-axle differential, four spring rear suspension, and cam and roller steering.

TG8RD and TG6LD:Double drive, overhead worm reduction axles, four spring rear suspension, with cam and roller steering on TG8RD, and worm and nut steering on TG6LD.

TG8RS and TG6LS:Single drive, double reduction spiral bevel axle with four spring rear suspension, non-driving trailing rear axle, with cam and roller steering on TG8RS and worm and nut steering on TG6LS.

TG6RT:Double drive, double reduction spiral bevel axles and lockable inter-axle differential, four spring rear suspension, and worm and nut steering.
TG6RF:Single drive, double reduction spiral bevel axle with two spring rear suspension, twin steering front axles, and cam and roller steering.
TG6RB and TG6RBE:Double drive double reduction spiral bevel axles, fully articulated suspension, and worm and nut steering.

The vehicles were equipped during the long production time with various four, six and eight-cylinder diesel engines from AEC , Leyland Motors and Gardner . Various manual, four-, five- and six-speed transmissions with and without overdrive were used. Older vehicles have often been remotorized, often with non-type components installed to better adapt the vehicles to the needs of their owners. In addition to the widespread cabs, the chassis was also offered as Langhauber. In addition to flatbed trucks were mainly tankers and dump trucks widespread.

1970s

The 24 ton Marshal, in either 6x2 or 6x4 form, has the work- proven and reliable 151 b.h.p.gross AV505 diesel which provides a very high torque output.Transmission is through a six- speed overdrive gearbox driving through robust single-reduction spiral bevel rear axles with differential lock in the leading axle to give good traction under the worst conditions.
The 28/30 ton Mammoth Major for tipper or haulage use is available in 8x2 and 8x4 forms. Both versions give power to spare with the 212 b,h.p. gross AV760 diesel, with a smooth transmission through a robust clutch and a six-speed overdrive or alternative 10-speed overdrive
gearbox. The drive axles are two heavy duty single reduction units on haulage models and heavy duty double reduction units on tipper chassis.
A lockable third differential is standard on the 8x4 models and a double-reduction unit with optional cross-lock differential and trailing axle in the version. Whichever vehicle you
operate traction and adequate speed,allied to first class reliability and economy are the benefits of these carefully designed drive trains.