The True One-Tonne SWB

1 · The job

A working day that mixes town service calls with motorway legs, carrying dense material rather than volume. The load is heavy before the van is full.

2 · The proposed vehicle envelope

Approximately the footprint associated with a short-wheelbase mid-size van, standard roof, single cab, panel body.

3 · Target payload

1,000 kg

A target, not an achieved figure. Nothing here has been engineered or measured.

4 · Target working range

180 miles in loaded mixed use

A requirement drawn from the work, not a published or calculated range.

5 · Operational requirements

• Loaded from the kerb several times a day
• Parked overnight at a depot
• Winter motorway running with cab heating
• Permanent racking installed on one side

6 · Principal compromises

• Energy stored on board competes directly with what can be carried.
• A smaller battery preserves payload but narrows the acceptable working day.
• A stronger structure for a one-tonne target adds mass of its own.

7 · What would need engineering validation

• Mass budget across structure, battery, body and equipment
• Axle loading with a dense load carried forward
• Gross vehicle weight category and licence implications
• Winter energy demand with heating and a working load

Engineering assessment required

8 · Who might benefit

• Independent trades carrying dense material
• Service fleets replacing a diesel SWB one-for-one
• Operators constrained by licence weight limits

9 · Related concepts

10 · Submit a similar requirement

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