# Mack NR

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Cargo truck

Mack NR Mack NR truck; Bridgehead, Bussum, Netherlands Type Cargo truck Place of origin United States Production history No. built over 16,000 built Specifications Mass 9.2 ton (empty) Length 8,200 mm (322.8 in) Width 2,600 mm (102.4 in) Height 2,500 mm (98.4 in) Crew 1 driver Armor none Secondary armament none Engine Mack-Lanova ED diesel engine, 6-cylinders 131 hp Payload capacity 10 ton (cargo capacity) Suspension wheels, 6x6

The **Mack NR** was a heavy [6x4](/source/Four-wheel_drive) cargo [truck](/source/Truck) designed and produced in the 1940s by the American manufacturer [Mack Trucks](/source/Mack_Trucks). It was used mainly by the [British Army](/source/British_Army) to transport cargo and materiel over long distances during [World War II](/source/World_War_II). The official U.S. Army designation was: *Truck, 10 ton, 6x4, Cargo*.[1] Its [G-number](/source/List_of_U.S._military_vehicles_by_supply_catalog_designation) was **(G-528)**.

## History

Before the outbreak of [World War II](/source/World_War_II) France had bought in [United States](/source/United_States) 210 Mack EXBX heavy trucks as 4,800 US gallons (18,000 L; 4,000 imp gal) tankers. The outcome of the [Battle of France](/source/Battle_of_France) prevented the delivery of these trucks to France, and Great Britain received them instead and used them for [transporting tanks](/source/Tank_transporter).[2][3] The [British Purchasing Commission](/source/British_Purchasing_Commission) acting in the [United States](/source/United_States) contracted the provision of Mack heavy trucks for military use; this resulted in the NR series. Every order was given its own number even if the performance remained unchanged or the differences were minimal; this resulted in the NR-1 to NR-20 designations.[*[citation needed](https://en.wikipedia.org/wiki/Wikipedia:Citation_needed)*]

### NR-1 to NR-7

In 1940 an initial order was placed with Mack for 90 heavy trucks in the 10-ton category under the designation NR-1.[1] These trucks were similar to those provided to the British troops through the French order, but were not specifically equipped for tank transport. The NR-1 was a variant of a basic civilian version that was marketed in the 1930s by Mack; however with a solid grill to protect the [radiator](/source/Radiator) and headlamps, and an extra roof above the [cab](/source/Cabin_(truck)) to prevent overheating. These vehicles were assigned to the [Middle East](/source/Mediterranean_and_Middle_East_theatre_of_World_War_II) and the [Far East](/source/South-East_Asian_theatre_of_World_War_II) theatres. The trucks were powered by a six-cylinder Mack-Lanova ED [engine](/source/Engine) which could deliver 131 [HP](/source/Horsepower) at 2,000 rpm; driving a TR 12 Duplex [transmission](/source/Transmission_(mechanics)) with five gears. The rear wheels, with tyre size 13.50-20, were the only with power, hence the [6x4](/source/6%C3%974_(drivetrain)) designation; the front wheels had a different tire size, namely 10.50-24,. The empty weight was just over 10 tons.[1] The cost per vehicle was around $9,000.

The initial order was quickly followed by two follow-up orders, for the NR-2 and NR-3 models. The NR-2 was a military version of the Model 270 driver's cab and it differed in small details; this cab was used until the introduction of the open cabin. The British ordered 330 units of this model. In 1941 61 units of the NR-3 model were ordered; this was meant for long-distance transport in the Middle East by the logistics department of the British Army, the [Royal Army Service Corps](/source/Royal_Army_Service_Corps) (RASC). The dimensions were 8.2 meters long, 2.6 meters wide and 2.5 meters high. The empty weight was 9.3 tons, and this version had a slightly different wheel size (11.00-24 front and 14.00-20 rear).[1]

The NR-4 variant was like the Mack EXBX, a special version for [tank transport](/source/Tank_transporter). On August 21, 1941, an order was placed for 200 units.[1] They were identical to the NR-3 but with a flat-floor cargo area, a [winch](/source/Winch), and ramps to upload the tank to the cargo area. The empty weight was about 11.7 metric tons, and the total weight load was less than 22.7 tons. The vehicle was designed to transport the [M3 Stuart](/source/M3_Stuart) light tank, which weighed almost 13 tons, but could also be used for transporting the [Cruiser Mk II](/source/Cruiser_Mk_II) A10, and [Valentine tank](/source/Valentine_tank).

The NR-5 variant had a Duplex TRD 37 gearbox, but was otherwise identical to the NR-3.

### Introduction of the open driver's cab

In NR-8, a new cab was introduced. The full metal cab was replaced with an open cabin that could be covered with a [canvas](/source/Canvas) roof.[1]

The NR-9 to NR-13 variants were very similar to the NR-8. In the NR-14, produced in 1944, the rear wheels were dual (wheel size 11.00-24). Many copies of the NR-15 were shipped to [Iran](/source/Iran) and played a key role in the transport of war materials to the [Soviet Union](/source/Soviet_Union) via the [Persian Corridor](/source/Persian_Corridor) The two fuel tanks had a capacity of 280 liters (75 US-gallon) and were mounted on either side of the vehicle.[1]

The NR-16 was in fact the last order placed during the war; 455 units were delivered in 1945. The order for the NR-17 was canceled at the end of World War II.[1] After the war, the Americans ordered 600 units for the European armies then being re-established; [Belgium](/source/Belgium) and [Netherlands](/source/Netherlands) each received 150 vehicles (NR-18 and NR-19) and [France](/source/France) received 300 units (NR-20).[1]

In total, 16 548 examples of the NR series were produced,[1] and due to their good quality most remained in service until well after the war.[*[citation needed](https://en.wikipedia.org/wiki/Wikipedia:Citation_needed)*]

## Description

This section needs expansion. You can help by adding missing information. (March 2017)

The vehicle had a typical configuration, with a [hooded](/source/Hood_(vehicle)) front engine behind which there was a large driver cabin, and a rear cargo area.

## Variants

In total, 16 548 vehicles were built, in 20 variants as described in the following table.[1]

Type Model Number Built Years Produced Cargo transport (civil cabin) NR-1 90 1940 Cargo transport (Model 270 cabin) NR-2 330 1941 Cargo transport NR-3 61 1941 to 1942 Tank transporter NR-4 200 1941 to 1942 Cargo transport NR-5 189 1941 to 1942 Cargo transport NR-6 500 1942 Cargo transport NR-7 500 1942 to 1943 Cargo transport NR-8 700 (150 + 550) 1942 to 1943 Cargo transport NR-9 900 1943 to 1944 Cargo transport NR-10 1,257 1943 to 1944 Cargo transport NR-11 239 1943 to 1944 Cargo transport NR-12 1,320 1943 to 1944 Cargo transport NR-13 1,280 1943 to 1944 Cargo transport (open cab, twin rear wheels) NR-14 7,080 1944 to 1945 Cargo transport NR-15 847 1945 Cargo transport NR-16 445 1945 Cargo transport NR-17 none order cancelled Cargo transport (Belgium) NR-18 150 Post-war Cargo transport (Netherlands) NR-19 150 Post-war Cargo transport (France) NR-20 300 Post-war

## See also

- [List of U.S. military vehicles by supply catalog designation](/source/List_of_U.S._military_vehicles_by_supply_catalog_designation) (G-528)

- [List of U.S. military vehicles by model number](/source/List_of_U.S._military_vehicles_by_model_number)

- [Mack Trucks](/source/Mack_Trucks)

- [Mack model EH trucks](/source/Mack_model_EH_trucks)

- [Mack NJU](/source/Mack_NJU_Truck%2C_Tractor%2C_1941)

- [Mack NM](/source/Mack_NM_Truck%2C_6-Ton%2C_6x6%2C_Cargo)

- [Mack NO](/source/Mack_NO)

- [White-Ruxtall 922](/source/White-Ruxtall_922)

## References

### Notes

1. ^ [***a***](#cite_ref-MACK_1-0) [***b***](#cite_ref-MACK_1-1) [***c***](#cite_ref-MACK_1-2) [***d***](#cite_ref-MACK_1-3) [***e***](#cite_ref-MACK_1-4) [***f***](#cite_ref-MACK_1-5) [***g***](#cite_ref-MACK_1-6) [***h***](#cite_ref-MACK_1-7) [***i***](#cite_ref-MACK_1-8) [***j***](#cite_ref-MACK_1-9) [***k***](#cite_ref-MACK_1-10) Mack's in the Services and Beyond, p. 50-65

1. **[^](#cite_ref-2)** Vauvillier, François; Touraine, Jean-Michel; Jeudy, Jean-Gabriel (1992). *L'Automobile Sous l'Uniforme 1939–1940* [*The Automobile in Uniform 1939–1940*] (in French). Editions Ch. Massin. p. 104. [ISBN](/source/ISBN_(identifier)) [2-7072-0197-9](https://en.wikipedia.org/wiki/Special:BookSources/2-7072-0197-9).

1. **[^](#cite_ref-3)** Conniford, M.P. (1972). *British Army Transport 1939-45*. Bellona Handbook No. 3. Vol. 1. Tank transporters, Recovery Vehicles, Machinery Trucks. M.A.P. Publications. p. 2.

### Bibliography

- Vanderveen, Bart (1998). *A Record of Military Macks in the Services and Beyond*. Wheels & tracks. After the Battle. [ISBN](/source/ISBN_(identifier)) [1-870067-09-6](https://en.wikipedia.org/wiki/Special:BookSources/1-870067-09-6).

## External links

- [Official Website](http://www.macktrucks.com/)

Wikimedia Commons has media related to [Mack NR](https://commons.wikimedia.org/wiki/Category:Mack_NR).

v t e Mack Trucks In production Anthem Granite LR MD Pinnacle Pioneer Keystone Super-Liner TerraPro Titan Trident Discontinued AC series B series CH series EH series F series L series M123/M125 series Magnum MC/MR series Metro-Liner NM Series NO Series R series

v t e British Commonwealth soft-skinned vehicles of the Second World War Artillery tractors AEC Matador Albion CX22S Albion FT15N CMP FAT Guy Quad-Ant FAT Morris CDSW Morris C8 FAT Scammell Pioneer Tank transporters AEC 850 Diamond T tank transporter Mack EXBX Scammell Pioneer White-Ruxtall 922 Trucks and lorries Austin K2/Y Austin K5 Bedford MW Bedford OXD Bedford OYD Bedford QL CMP Truck Commer Q2 Fordson WOT 1, 2, 3, 6 & 8 Guy Ant Karrier K6 Leyland Hippo (Mk I & Mk II) Leyland Lynx Leyland Retriever Mack EH series Mack NM series Morris PU Morris CS8 (15cwt) Morris C9 Peerless TC4 Thornycroft Nubian Thornycroft Tartar Utility and cars Car, 4-Seater 4×2 Humber FWD Car, Light Utility ("Tilly") Motorcycles Ariel W/NG 350 BSA M20 Harley-Davidson WLA Indian 741 Matchless G3/L Norton 16H Royal Enfield WD/RE Welbike

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Adapted from the Wikipedia article [Mack NR](https://en.wikipedia.org/wiki/Mack_NR) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Mack_NR?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.