
Creeper Mule
Larger and more robust. A modular platform on broad 18 × 8-inch terrain wheels, designed for loads up to 1,000 kg.

Simple. Affordable. Modular. Three disposable vehicle concepts designed to take the load off the people on the ground.
Explore the prototypesConcept visual · Actual prototypes may differ
Strength, speed or following support. Explore the focus of each vehicle in our development programme.

Larger and more robust. A modular platform on broad 18 × 8-inch terrain wheels, designed for loads up to 1,000 kg.

Light and fast. A modular platform with a 127 cm frame, 104 cm total width and a design payload up to 150 kg.

The same compact chassis as Fast Mule, with remote control and follow-me support. Design payload: up to 150 kg.
Front electronics box with a closed lid, two cameras, lidar and two antennas. Rear battery box with a plain lid.
Photorealistic concept visuals of the current chassis design. Modules and mounting remain in development; these images are not photographs of completed prototypes.
The platform for substantial loads: up to 1,000 kg of combined module and cargo mass. Four-wheel drive and a larger, robust frame make Creeper Mule the heavy member of the family. Autonomous operation is in development.
Consolidate larger loads on one modular platform.Carry multiple crates of food, water, clothing and other supplies in one load.
Move tool chests, spare parts, cable reels and heavier installation equipment.
Support larger battery packs, portable power equipment or a communications module.
Provide a base for a purpose-built stretcher module with room for medical equipment.

A central cargo module for supply crates and water containers.

Space for cable reels, tool chests and portable equipment, secured low between the wheels.
A light, mobile platform of 127 × 104 cm, with four-wheel drive and a payload up to 150 kg. Fast Mule is being developed for autonomous transport when a compact vehicle and smaller, targeted loads fit the task.
Deliver what is needed, in a compact load.Deliver food, water, clothing and personal equipment to a small team.
Transport first-aid kits, medicines and dressings without using a heavy cargo platform.
Bring replacement batteries, small spare parts and repair kits to where they are needed.
Carry a lightweight radio relay or communications module within the available payload.

A dedicated stretcher carrier on the central frame. Patient, module and equipment together must remain within 150 kg.

A removable communications module with a compact antenna assembly.

A low cargo bin for daily supplies, clothing and medical kits.

An interchangeable module for spare battery cases, small tools and replacement parts.
The 127 × 104 cm companion platform: four-wheel drive, up to 150 kg and two operating modes. Let Follow Mule follow the operator, or use the remote control to position and move it directly.
Keep equipment with the team and off their backs.Carry packs, drinking water and shared equipment while moving with a dismounted team.
Keep medical bags, dressings and rescue equipment close to the person providing care.
Support maintenance or engineering teams with tools, parts, batteries and cable reels.
Use remote control to move supplies between nearby positions or send the vehicle ahead while the operator assesses the route.

Backpacks, duffel bags and sleeping equipment carried in a central tray. Remote control and follow-me support.
Application concepts are subject to module development and testing. Module mass counts towards payload; terrain, load and configuration determine practical performance.
All three share the same layout: electronics at the front, batteries at the rear and space for interchangeable modules in the middle.
One chassis layout across the family: four rigid wheel forks, each supporting its axle on both sides. The frame sits at axle height, with no suspension. Two crossmembers support the open centre. The shallow electronics and battery boxes remain fixed beneath the frame; only the central module changes.


Fast Mule and Follow Mule share a 127 cm frame length and 104 cm total width, including the outer forks. All three models have 8 cm-high electronics and battery boxes mounted beneath the frame. Creeper Mule scales the same chassis layout by 1.5 to 190.5 × 156 cm, adapted to its 18 × 8-inch wheels. Within each model, the frame and wheel positions stay the same for every module.
Four-wheel drive on every model. No suspension. A low centre of gravity between the wheels. A straightforward, low-cost build with a disposable design philosophy.
Creeper Mule uses broad 18 × 8-inch tyres (approximately 45.7 cm diameter × 20.3 cm wide). Fast Mule and Follow Mule use the narrower 20 × 4-inch wheel type, shown here with a total outside tyre diameter of 58 cm and a width of approximately 10.2 cm. The larger chassis therefore has smaller-diameter, wider tyres.


A family of complementary concepts, with a clear priority for each prototype.
| Prototype | Creeper Mule | Fast Mule | Follow Mule |
|---|---|---|---|
| Drive | Four-wheel drive (4WD) | Four-wheel drive (4WD) | Four-wheel drive (4WD) |
| Control concept | Autonomous | Autonomous | Remote control + follow me |
| Frame scale | 1.5× larger frame | Standard frame | Standard frame |
| Payload | Up to 1,000 kg | Up to 150 kg | Up to 150 kg |
| Frame length × total width | 190.5 × 156 cm | 127 × 104 cm | 127 × 104 cm |
| Wheels | 18 × 8-inch broad terrain tires | 20 × 4-inch wheels · 58 cm outside tyre diameter | 20 × 4-inch wheels · 58 cm outside tyre diameter |
| Suspension | None | None | None |
| Wheel mounting | Rigid fork, axle supported on both sides | Rigid fork, axle supported on both sides | Rigid fork, axle supported on both sides |
| Frame height | At wheel axle height | At wheel axle height | At wheel axle height |
| Layout | Modular | Modular | Modular |
| Primary focus | Strength | Mobility | Following support |
| Design direction | Heavy & robust | Light & fast | Operator-led movement |
| Intended role | Heavier cargo | Mobile logistics | Equipment transport |
| Current phase | Prototype development | Prototype development | Prototype development |
Prototype specifications. Payload figures are design capacities; final performance depends on the configuration and testing.
Carrying equipment takes energy. Military Solutions is developing unmanned logistics vehicles to help reduce that burden.
In development · Three prototypesGive each prototype a distinct role, from heavier loads to movement alongside the operator.
Evaluate handling, usability and performance through practical trials.
Use test results and operator feedback to guide the next stage of development.
With a Ukrainian wife and family living in Kyiv, Hans Luijkx began looking for a practical way to help. The challenge of the final kilometres of supply became the starting point for Military Solutions.
Read our storyHans Luijkx, Auke Bosscher and Michiel de Groot. Three co-owners combining engineering, safety and project experience.

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