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Climatic Wind Tunnel (CWT One)


Our advanced CWT One facility enables customers to test their products under a wide range of simulated, repeatable environmental conditions including extreme cold, snow, solar loading and humidity.

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Climatic Wind Tunnel CWT One 1

The facility features a 4 wheel drive dynamometer and is utilised by a number of international vehicle manufacturers looking to develop their products for all world markets.

By reducing the need for seasonal in-territory testing, the facility allows customers to compress their development lead times, helping them to deliver products to market far quicker than their competitors.

Climatic Wind Tunnel CWT One 2

We offer the following tests in this facility:

  • Defrost/Demist
  • SC03
  • FTTP (Fuel Tank Temperature Profile)
  • ATCT (Ambient Temperature Corrected Test)
  • UDDS (Urban Dynamometer Driving Schedule)
  • WLTP (Worldwide Harmonised Light Vehicle Test Procedure)
  • Snow Packing
  • HVAC Performance
  • AC Pulldown
  • Cold Start
  • Motorcycle Lugging & High Speed
  • EV Range
  • Driven Rain

Climatic Wind Tunnel (CWT One) Specifications



Max vehicle dimension

Width 2.7m, Height 3m, Length 6.2m

Vehicle wheelbase

Maximum 5m, Minimum 2m

Gross vehicle weight


Air speeds

Primary = 150km/h, Secondary = 200km/h

Air temperature

Max/Min +55ºC/-20ºC

Chassis dynamometer

Twin-axle (150kW DC per axle), 1.6m dia. rollers (FWD/RWD/4WD)

Humidity range

5% to 95% RH

Solar simulation

Quartz halogen, visible and IR, Range: 0.6 to 1.2kW/m2, Target area: 1.8m x 5.2m

Data acquisition

Ipetronik CAN system 160 channels, 20Hz to 5KHz depending on channel type

Hot-road simulation

Underbody heating up to 30ºC above chamber temperature

Minimum speed:

0km/h (idle/city bypass system operating)

Circuit type

Vertical return, fully enclosed within support building

Fan type

Axial flow, 2.6m dia. 400kW

Airflow nozzle

Primary = 4.0m2, Secondary = 2.5m2

Cooling systems

765kW capacity. Twin rotary-screw compressors with heat exchangers

Soak room

Temp range: -20ºC to +55 ºC, Dimensions: 12.0m x 6.7m


Gasoline, LPG, CNG and gasoline hybrids. All world legislative test cycles and custom drive cycles. Analysis of dilute emissions (HC, CH4, NOx, CO and CO2 ), European Type VI cold (-7ºC) HC and CO test, US Federal cold (-7ºC) CO test, US Federal Supplement test: US06 and SC03, Hot and cold emissions development testing