Not all caravans are shaped the same — and the shape matters more than most people think.
Ever noticed how some vans drag your tow vehicle more, bounce around on highways, or feel unstable in side winds?
A big part of that comes down to aerodynamics — and Harvok is built with airflow in mind.
Most Caravans = Flat Wall, Flat Roof, Flat Back
Traditional caravans have:
- Flat vertical front walls that slam into the wind like a brick.
- Sharp corners that create swirling air (turbulence).
- Large flat rear walls that drag air behind them, increasing resistance.
This increases drag, reduces fuel efficiency, and adds pressure on your tow vehicle — especially at higher speeds or in crosswinds.
Harvok Is Designed to Cut Through the Wind — Like an Aircraft
Our monocoque body isn’t just about strength — it’s also engineered for smooth airflow.
Using CFD (Computational Fluid Dynamics) analysis — the same method used by automakers and aerospace engineers — we designed Harvok’s shell to:
- Reduce front-facing drag with smoother upper curves.
- Guide air over the roofline and corners to minimise vortexes.
- Release air cleanly from the rear, reducing pressure drag behind the van.
🔬 Real Engineering, Not Just Pretty Curves
Harvok’s body design was professionally tested using digital airflow simulation.
CFD reports showed:
- Lower aerodynamic drag coefficient compared to traditional box shapes.
- Improved flow separation control — meaning less bouncing and sway.
- More consistent airflow along side panels, reducing side-wind instability.
This means:
- Smoother towing at highway speeds.
- Better fuel efficiency — especially with large 4WDs and dual cabs.
- Less strain on your tow vehicle, especially when overtaking or facing headwinds.
It’s Not Just Air — It’s Road Stability Too
Aerodynamic lift and turbulence can affect how your van handles on real roads.
Harvok’s shape creates low turbulence zones behind the van, reducing that “push and pull” feeling when trucks pass or when driving in crosswinds. It also reduces buffeting at the tow ball, which helps maintain a smoother ride for your passengers — and your caravan.
You’ll Feel It When You Drive It
Customers tell us:
“It just feels lighter and more planted.”
“Didn’t realise how bad the drag was until I towed Harvok back-to-back.”
Aerodynamics aren’t just for race cars — they matter when you’re towing a full-size caravan on Aussie roads.