The AT44 solution developed for the hugely popular pickup Ford F-150 is one of our latest projects receiving strong development focus. The driving factors to develop this solution for the F-150 are large cabin size compared to weight and plans to offer this vehicle to the North American market. To drive on top of deep snow, flotation is needed, so every kg saved in the weight of the car will give better performance and/or capacity to carry more supplies. We needed to add a larger body vehicle than the Hilux to our polar vehicle fleet, but keep the vehicle as close as possible in the same weight range. When the F-150 with both alloy body and optional diesel engine, it came into a weight range we are looking for and a viable option for use in Antarctica running it on JET 1A fuel.

With great options for gasoline engines, hybrid and expected electric, this vehicle offers great options for the Arctic and our AT44 can be built on number of model options and factory specifications. With these vehicles to be used in variety of conditions and for variety of usage in challenging conditions our small production volume offers some flexibility to meet specific requirement.

AT44 – Technical Specification of Base Conversion

– Key Points:

  • Extensive re-build of the vehicle body
  • Changes to the vehicle frame
  • 44inch Arctic Trucks/Nokian winter performance tires.
  • Arctic Trucks 17/14 inch alloy wheels
  • Lowered gear ratio (1/5.13 or 1/4.88)
  • Upgraded suspension.
  • Basic electronic, fuel and lights conversion.

AT44 – Extra Option Common for Rescue Vehicles,


  • A separate aux electric system 12 channel control unit
  • Top rack for lights and bigger antennas
  • Priority lights
  • Search lights
  • Siren
  • Tetra communication system
  • Charging stations for handheld lights and radios
  • Canopy and cabin heater

AT44 – Special extra setup for vehicle meant for

Antarctica/glacier studies

  • Crevasse bar
  • Crane and fuel barrel clamp
  • Push bar
  • Snow anchor
  • Ground Penetrating Radar (GPR) a donut system for down to 400Mhz antenna
  • Extra fuel filters and lubrication
  • Internal and bed Roll cage
  • Rear cargo deck for fuel barrels and alloy box


  • Central tire inflation/deflation system
  • A set of two high-performance air pumps
  • Radial arm rear suspension with air springs
  • Hi performance suspension.
  • Front 100% diff locks
  • Steel wheels with beat lock
  • Crawler gear (1/2,0)
  • Fuel tank 120 liter– using space for standard spare tire.
  • Front and rear bumper solution for using highlight, power and air outtakes and front winch connector.
  • Skip plates
  • Winch in AT cradle, fr or rr plug in
  • A rack (bull bar) for lights in front
  • Heavy duty Roof rack
  • Engine heater
  • Variety of aux lights front and side.
  • VHF Radio
  • GPS for off-road / tundra / glaciers etc.
  • Recovery system, including 25-meter elastic rope.
  • High lift
  • Alloy man with steel toe and shovel
  • Tire repair set
  • Snorkel (currently not available)

Key Features for the Arctic

The concept of the AT44 has been proven for over 30years in Iceland, giving a street legal car most of the snow capabilities only a belt vehicle has.   Combining these two competences and adding excellent operation in various other off-road conditions, this has “revolutionized” many types of operations in Iceland, i.e. variety of utility operation, rescue operators, highland/glacier tour operators and more.

Day to day road driving is fairly normal, the tires are restricted to 140km/h and fuel consumption is ca 15-30% higher. The AT/Nokian 44-inch tires are very silent but small vibration may occur at higher speeds. Driving in city environment you will feel the vehicle is wider and the turning radius a bit restricted from the original. The daily work around the vehicle is also normal, getting in and out of the vehicle is very easy and driving controls are all standard. We run tire pressure in the range of 25 to 29psi.

When getting of the main road or hitting deep snow conditions this is where the AT44 really shines. The tires, the vehicle balance and overall setup give you option to use it for condition way beyond the capabilities of the standard vehicle.  One of the keys for this functionality is the option of taking the tire pressure far lower than possible with standard tires. Even though the larger diameter and the width of the tires do give better off-road performance it is tire pressure which is below 10psi which really gives the advantage. The tires are specially designed to flex and give a belt like flotation.

Key features for the Antarctic

For operation on and around science bases sitting on partly snow free areas, gravel based, the AT44 offers the convenience of a car which most people know how to operate. It is easy to enter/exit and load smaller cargo, high safety of operation and all base maintenance can be made by a good car mechanic.  Good suspension together with large tires which allow for very low tire pressure, makes driving on gravel and rocky roads/terrain smooth and enables driving over ground without leaving marks.

Driving onto a snow track or snow fields considered to be free from crevasses, the vehicle and the average user also feel at home. In these conditions the operating tire pressure is likely to be between 5psi and 10psi, fuel consumption will increase from standard vehicle, but this will depend on engine of chose, average driving distanced, temperature, idling times, load etc. We estimate this is 40% to 100% increase on top of normal city driving of the original vehicle as it comes from Ford

For operations on the Antarctica plateau, the extreme cold and length in time and distances.  Going to the plateau can involve one expedition up to 10.000km with 3200km between fuel. For this big planning is needed, the vehicle needs some extra features, the drivers and the expedition team need more training. Depending on conditions the vehicle speed may range from i.e. as low as 10km/h through big sastrugi areas to plus 70km/h in a belt vehicle tracks or i.e. smooth ice shelfs. The tire pressure normally used in in the range of 2psi to 6psi. Loaded of fuel and various equipment/ people etc., the average fuel consumption is in the area of 3-5times a standard vehicle in city driving or 50 to 60liters per 100km. This is high but still only a small fraction of a belt vehicle.

Weight of base conversion is close to 224kg added to the standard model. The vehicle above is 2595kg empty, or 260kg heavier than it was prior to conversion. This vehicle is based on Super Crew, Lariat, 3.5 ecoboost and SunRoof. With 3 psi the AT44 gives much great flotation than a walking person in hiking shoes. This flotation can make all the difference on soft snow but also gives the option of driving carefully over delegate lands without leaving marks. 

Tyre Inflation / Deflation

Tire pressure of 8psi to left and 3 psi to the right

8psi can give a smooth ride on rough roads and or terrain limited risk to the tire and with softer snow 3psi gets flotation and traction to take on all but the softest snow. How fast you can drive with the lower tire pressure depends on many things but cold and snow helps greatly.


  • Length: 5889 mm
  • Width: 2480 mm
  • Height: 2130 mm
  • Wheelbase: 3684 mm/ 1974 mm

Load and towing capacity follows Ford’s guidelines unless special adaptions are made. Interior of a rescue vehicle.  Controls for, central tire inflation system, rear air spring auto and manual control, 12 channel electrical control system, tetra and VHF radio can bee seen on the photo. For rear air spring suspension Arctic Trucks has chosen radius arms made for high strength steel to safe weight.  This setup gives good ride stability and preserves options for adding still more fuel tanks under the vehicle. The air spring suspension is focused for clients with variable load need and also to give improved off-road ride