The Oshkosh Defense Heavy Equipment Transporter HET aka M1070, is a combination of Oshkosh Corporation M1070 tractor and M1000 System & Electronics (now DRS Sustainment Systems Inc.) semi-transporter trailer.
The original HET entered service with the US Army in 1993 using a 500hp Detroit Diesel engine. It was designed to transport 70 tonne of armoured fighting vehicles, which included the M1A1 Abrams tank or x2 Bradleys or other Combat Engineer Vehicle. Unlike a lot of transports, the HETS has an off-road capability.
The Oshkosh Defense 1070F HET For British Army
The British Army eavy Equipment Transporter HET 1070F was a European model of the HET M1070 tractor (meets European exhaust mission standards) and a technologically advanced trailer designed and built by King Trailers Limited of Market Harborough, Leicestershire, U.K
The order was placed in January 2001. The King Trailer seven-axle, hydraulic-suspension steering trailer is specifically designed to operate with the Oshkosh M1070 to carry battle tanks weighing up to 158,731 pounds (72 metric tons) or two lighter armored vehicles. 157 HT 1070F are in service.
The Oshkosh Defense Global HET
This was the next version of HET and is 6×6 (not 8×8 like HET M1070) that was unveiled in October 2008.
700 horsepower Caterpillar® C18 engine
Allison® 4800SP transmission
Single-speed Oshkosh 30000 Series transfer case
6-person, Long-Term Armor Strategy-compliant, air-conditioned cab
Click her for vehicle spec sheet (pdf)
The Oshkosh Defense Heavy Equipment Transporter HET A1
The HET A1 aka HETA1 aka M1070A1 development started in early 2008. The HET A1 program includes improvements to the power train including the engine, transmission, transfer case and electrical systems. The next-generation HET also will incorporate improved axles and wheels, a new hood and cab improvements consisting of improved seats, dash panel, electrical, air conditioning and additional support for future armor upgrades.
The first production M1070A1 was completed in December 2010 following an order for 200 in October. The vehicle retains the M1000 semi-transporter trailer.
6-person, Long-Term Armor Strategy-compliant, air-conditioned cab
Air-ride suspension smooths ride and reduces wear and tear
Central Tire Inflation System (CTIS)
Two 55,000 lb. (24948 kg) winches
Click her for vehicle spec sheet (pdf)
The Oshkosh Defense Heavy Equipment Transporter HET Operators (confirmed)
U.S. Army – Entering service since 1993, over 2600 vehicles are in service, both HET M1070 & M1070A1.
United Kingdom – Entering service in 2001, replacing the Scammel Commander, the British Army version has modifications to the cab and engine to meet exhaust emission European legislation. British Army HET’s are designated HET 1070F.
United Arab Emirates – Delivered in 2012, the UAE ordered The Oshkosh Defense Global HET in Feb 2011.
Egypt – 35 HET ordered in October 2007 and 40 HET in Novemeber 2009
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