TunnelTech TT52 – Exceptional Indoor Skydiving Experience and World-Class Safety Features

Suitable for all modern competition disciplines including 8way Formation. Advanced marketing opportunities comparing to 14ft class tunnels. Best suitable for highly populated areas with competing 14ft projects. Discover the TT52, a top-of-the-line indoor skydiving wind tunnel by TunnelTech. Offering unparalleled safety, energy efficiency, and flying experience, it’s perfect for hosting world championships and dynamic flying disciplines.

Unmatched Performance, Energy Efficiency, and Safety – Perfect for Hosting the World Championship

Introducing the TT52, a state-of-the-art indoor skydiving wind tunnel from TunnelTech’s Pro-line series, designed to deliver unparalleled performance, safety, and energy efficiency. With its impressive 5.2-meter diameter flight chamber and industry-tallest 24-meter height, the TT52 offers a unique and exhilarating flying experience for both amateur and professional flyers.

Power Efficiency

One of the key features of the TT52 is its outstanding energy efficiency. As operational costs are a significant factor in the success of any indoor skydiving project, investing in a wind tunnel with low power consumption and high energy efficiency is crucial. The TT52 boasts a Darcy-Weißbach Friction Factor of just 0.245, ensuring lower running costs and a greener approach to indoor skydiving.


Safety is paramount at TunnelTech, and the TT52 is no exception. With a flight chamber diffusion ratio of 2, well-balanced safety nets with large strokes close to the walls, and a curved entrance to the flight chamber to avoid injuries, the TT52SL ensures a secure and enjoyable experience for all flyers. Additionally, noise levels of 55 dB-A in close proximity to the flight chamber minimize disturbance for bystanders and create a more pleasant environment.

World Championship Suitability

The TT52 is the perfect venue to host world championships and other high-level indoor skydiving competitions. Its large flight chamber and industry-leading height enable dynamic disciplines and provide an unparalleled flying experience for athletes. The exceptional performance, safety, and energy efficiency features of the TT52 make it an attractive choice for event organizers and competitors alike.

With its cutting-edge technology and design, the TT52 is a top choice for any indoor skydiving project. From shopping malls to dedicated skydiving centers, the TT52 offers a world-class experience that attracts enthusiasts and casual flyers alike. With its visually striking appearance and exceptional flying capabilities, this wind tunnel is a fantastic investment for businesses looking to create unforgettable experiences for their customers.

The Pro-line series, including the TT52SL, is equipped with an outright ventilation system and an optional active cooling system. These features ensure a comfortable environment for flyers, instructors, and spectators alike, regardless of the weather outside. 

The TT52 is more than just a wind tunnel; it’s a symbol of innovation, performance, and safety in the indoor skydiving industry. By choosing the TT52 for your project, you are investing in a world-class flying experience that will captivate and inspire flyers for years to come.


General parameters

Flight сhamber inner diameter 5.2 m (17″)
Glass height default 8 m (26’2″)
Glass height maximum 20 m (65’6″)

Dimensions Double Loop

Flight сhamber inner diameter 5.2 m (17″)
Glass height default 8 m (26’2″)
Glass height maximum 20 m (65’6″)

Dimensions Single Loop

Height38.5 m (126’3″)
Length28.5 m (93’5″)
Width11.2 m (36’7″)

Power Requirements

Power capacity (min) 1800 kW
Average time-weighted power consumption 680 kW
Power consumption @ 180 km/h 500 kW
Standard power capacity 1800 kW
Advanced power capacity 2000 kW
Beast power capacity 2240 kW


Noise level 60 dBa (optional)
Darcy-Weissbach drag coefficient, Xi 0.245
Max. Speed @ Standard power capacity 275 km/h
Max. Speed @ Advanced power capacity 286 km/h
Max. Speed @ Beast power capacity 296 km/h

Flight Chamber

Diameter 5.2 m (17′)
Height (minimum) 21.2 m (69’6″)
Area 21.22 m (69’6″)
Default glass height 8 m (26’2″)
Glass type chemically strengthened, non-shattering
Glass total thickness ≥50 mm
Low iron glass yes
Optional maximum glass height up to 20 m (65’6″)
BASE jumping chamber height 18 m (59′)
Patented safety net maintains long stroke in close proximity to the walls
Safety net tensioner 2 per cable
Speed drop (Diffusion rate) 1.9
Portal entrance shape curved, collision safe
Portal entrance material impact-dampening rubber
Entrance area speed drop ≤1%

Decompression Chamber

Airlock doors automated
Airlock emergency exit yes
Smooth decompression yes

Axial Fans

Supplier Tunneltech , Germany
Quantity 4
Power (per fan) @ Standard power capaccity 450 kW
Power (per fan) @ Advanced power capacity 500 kW
Power (per fan) @ Beast power capacity 560 kW
Location return vertical airduct
Axel orientation vertical
Diameter 3.37 m (11′)
Effective crossectional area 7.68 sq.m.
Blades material carbon fibre
Blades count 8
Automated lubrication yes


Material of FC Airjet (FC Contraction) FRP
Material of FC Diffuser glass
Material of return vertical airducts FRP/steel

Climate Control

Ventilation (a.k.a. Passive Cooling) yes
Max ventilation to airflow ratio 22%
Active Cooling System yes (optional)
Additional drag, caused by active cooling system 0 Pa (No drag)
Active Cooling type through turning vanes
Recommended Chiller Cooling Capacity 1200 kW (4,094,570 BTU/h)


Color LED backlight strips between glass panels yes, flicker-free (optional)
LED Strips power per m 10 W
LED Strips frame rate 60 fps
LED Projectors yes, flicker-free (optional)
LED projectors default number installed (optional) 8 – 32 (optional)
LED projectors max. power 90 W
LED projectors max. luminous flux power R:1950 G:2700 B:750 lumen
LED projector dimming capability 0 – 100%
LED control from Main Panel yes
LED anti-flicker function high frequency PWM
LED projector PWM frequency 1 kHz
LED color depth 24 bit, 16,777,216 colors
LED projector color depth 36 bit, 64 bln colors


Main panel control display 28″
Touch screen main panel yes
Flight chamber info display 31.5″
Operator desk speed controller autonomous knob
Waiting zone speed controller autonomous knob
Base chamber speed controller autonomous knob
Speed controller knob resolution 0.1%

Turning Vanes

Chord 500 mm
Chord-to-Spacing ratio ≥3:1
Material aluminium
Surface treatment anodized
Cooling channels 6
Turning vane heat transfer ratio, per meter @ 10-35m/s airflow speed >105 (±15) W/(m*K)


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