Wing II · Industrial Mobility
Series-hybrid flex-fuel glider trucks, built by the block that drives them.
No mechanical driveline. A Brogen e-axle does all the work, a LiFePO4 buffer absorbs the duty cycle, and a small flex-fuel genset holds state of charge on long hauls.

Platform specification
- Drive
- Brogen 2-speed e-axle, 350 kW peak
- Buffer
- 84 kWh LiFePO4, liquid-conditioned
- Range extender
- 2.0L flex-fuel genset, E85 / biogas
- Architecture
- Series hybrid — no mechanical path to the wheels
- Glider mass
- 4,180 kg with body-in-white aluminium
- Drag
- Cd 0.28 with boat-tail and skirt package
- Plug-in range
- 192 km battery-only, urban duty cycle
- Service
- Open manuals, standard tooling, local rebuild
Build sequence
Glider intake
Cab-and-frame gliders arrive without powertrain. We survey the rails, strip the harness, and log every component into the shared ledger.
E-axle fitment
The Brogen e-axle drops into a purpose-built subframe. High-voltage routing is done by certified apprentices under a licensed supervisor.
Buffer & genset
LiFePO4 modules are stacked into a crash-braced tunnel pack. The flex-fuel genset runs only as a charger, at a single efficient load point.
Commission & hand-off
Dyno verification, thermal soak, and a two-day operator course. The truck leaves with its own service manual and parts list.
Why series, why flex-fuel
A series layout lets the engine ignore the road entirely. It runs at one load point or not at all, which is where a small combustion unit is actually efficient.
Flex-fuel means the truck accepts what the district can produce — ethanol from regional stock, biogas from the digesters, petrol only as a fallback.
LiFePO4 carries the duty cycle without cobalt, tolerates deep cycling, and retires into the campus UPS bank when it drops below traction spec.