VDAS AF1300 - Base Unit
SUBSONIC WIND TUNNEL 300mm

An open circuit suction subsonic wind tunnel with a working section of 300 mm by 300 mm and 600 mm long.

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A compact, practical open-circuit suction wind tunnel for studying aerodynamics. The wind tunnel saves time and money compared with full-scale wind tunnels or airborne laboratories, and it offers a wide variety of experiments. The wind tunnel gives accurate results and is suitable for undergraduate study and research projects. TecQuipment offers a comprehensive range of optional models and instrumentation, including a computer-based data acquisition system. 

Air enters the tunnel through an aerodynamically designed effuser (cone) that accelerates the air linearly. It then enters the working section and passes through a grill before moving through a diffuser and then to a variable-speed axial fan. The grill protects the fan from damage by loose objects. The air leaves the fan, passes through a silencer unit and then back out to atmosphere. 

A separate control and instrumentation unit controls the speed of the axial fan (and the air velocity in the working section). The control and instrumentation unit also includes manometers and electrical outlets to supply electrical power to other optional instruments. 

The working section of the tunnel is a square section with a clear roof, sides and floor. The sides are removable. The floor and each side panel has a special position to support the optional wind tunnel models. Supplied with the wind tunnel are a protractor and a model holder to support and accurately adjust the angle of any models fitted. A Pitot-static tube and a traversing Pitot tube fit on the working section, upstream and downstream of any models. They connect to the manometers of the instrumentation unit (or other optional instruments) to show pressure. 

A metal frame supports the wind tunnel. The frame includes lockable castors for convenient mobility. Electronic sensors on the optional wind tunnel instrumentation can connect to TecQuipment’s Versatile Data Acquisition System (VDAS®, not included). VDAS® allows accurate real-time data capture, monitoring, display, calculation and charting of all relevant parameters on a suitable computer.

A wide variety of subsonic aerodynamics experiments (some need ancillaries), including:

  • Flow past bluff and streamlined bodies with pressure and velocity observations in the wake
  • Investigations into boundary layer development
  • Influence of aspect ratio on aerofoil performance
  • Performance of an aerofoil with flap, influence of flap angle on lift, drag and stall
  • Pressure distribution around a cylinder under sub and super-critical flow conditions
  • Study of characteristics of models involving basic measurement of lift and drag forces
  • Study of the characteristics of three-dimensional aerofoils involving measurement of lift, drag and pitching moment
  • Study of the pressure distribution around an aerofoil model to derive the lift and comparison with direct measurements of lift
  • Drag force on a bluff body normal to an air flow
  • Flow visualisation


AF1300A - Experiment

A cylinder model with a single pressure tapping point for use with the AF1300 Subsonic Wind Tunnel.

AF1300C - Experiment

A 150 mm chord NACA2412 unsymmetrical section aerofoil with 300 mm span and adjustable flap for use with the AF1300 Subsonic Wind Tunnel.

AF1300D - Experiment

A set of two aerofoils both of NACA0012 profile and 150 mm chord for use with the AF1300 Subsonic Wind Tunnel.

AF1300E - Experiment

A 100 mm diameter flat plate for use with the AF1300 Subsonic Wind Tunnel.

AF1300F - Experiment

A flat boundary layer model to illustrate the phenomena of boundary layer development and separation. For use with the AF1300 Subsonic Wind Tunnel.

AF1300J - Experiment

Five drag investigation models for use with the TecQuipment AF1300 wind tunnel - a streamlined shape, a sphere, hemisphere, "dimpled" sphere, and a flat plate. All the models have a 50mm frontal area for easy comparison

AF1300L - Experiment

An S1210 profile aerofoil of 150 mm chord for use with the AF1300 Subsonic Wind Tunnel.

AF1300B - Experiment

A 150 mm chord 300 mm span NACA0012 aerofoil with pressure tappings for use with the AF1300 Subsonic Wind Tunnel.

AF1300G - Experiment

A model aircraft with low wing configuration for use in TecQuipment's AF1300 Wind Tunnel.

AF1300H - Experiment

A model aircraft with high wing configuration for use in TecQuipment's AF1300 Wind Tunnel.

VDAS AF1300S - Package

A starter set consisting of the Subsonic Wind Tunnel AF1300,  Basic Lift and Drag Balance AF1300Z and a set of Three Dimensional Drag Models AF1300J.

AF1300R - Ancillary

A tilting 36-tube manometer for use with the AF1300 Series Subsonic Wind Tunnel, other TecQuipment products, or as a general purpose instrument.

AF1300T - Ancillary

A three-component balance designed for use with the AF1300 Subsonic Wind Tunnel.

AF1300U - Ancillary

The AF1300U Angle Feedback Unit is an optional ancillary for use with an AF1300T Three-Component Balance to measure the angular position of models mounted on the balance in an AF1300 Subsonic Wind Tunnel.

AF1300V - Ancillary

The AF1300V Differential Pressure Transducer is an optional ancillary for TecQuipment's AF1300 Subsonic Wind Tunnel to measure and display pressures with respect to the atmosphere or differential pressures.

AF1300W - Ancillary

The AF1300W 32-Way Pressure Display Unit is an optional ancillary to the AF1300 Subsonic Wind Tunnel that measures and displays up to 32 different pressures from models Pitot-static tubes and other measuring instruments fitted to a wind tunnel.

AF1300X - Ancillary

A traversing pitot static tube with electronic position measurement. For use with TecQuipment's AF1300 wind tunnel.

AF1300Y - Ancillary

This smoke generator and probe is an optional ancillary to TecQuipment's AF1300 Subsonic Wind Tunnel to allow the observation of airflow in subsonic wind tunnels and other airflow situations.

VDAS-F (mkII) - Ancillary

A frame mounting versatile data acquisition system (VDAS) to allow computer-based data capture for a wide range of TecQuipment products.

AF1300Z - Ancillary

A two component balance to measure the lift and drag forces on models mounted in an AF1300 Subsonic Wind Tunnel.

AF10 - Base Unit

A fully mobile bench to provide basic airflow facilities to enable a wide range of practical airflow investigations. Suitable for demonstration, laboratory and project work at a basic level.

VDAS AF300 - Experiment

The AF300 is an intermittent operation induction type supersonic wind tunnel that allows investigations into the flow around 2-dimensional models at supersonic airspeeds.

VDAS AF302 - Experiment

The AF302 is a suction type continuous operation supersonic wind tunnel with a working section of 101.6 mm x 25.4 mm that allows investigations into supersonic airflow around 2-dimensional models.

AF41 - Experiment

An open-circuit wind tunnel incorporating a suspended aircraft model with realistic controls for classroom demonstrations and student investigations into a variety of aircraft flight principles.

AF80 - Experiment

A floor standing suction type subsonic wind tunnel with smoke visualisation. It allows demonstrations and student investigations into the flow of air around a wide variety of different shaped models.