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- HANS Device
- 20LS Large
- Fixed Tether
- (Top) The unrestrained head begins to pitch forward. The elongation of the belts allows the dummy's torso to slide further forward in the seat.
- (Bottom) The friction rubber on the legs of the HANS has engaged the belts to straighten and load the tethers, enabling the helmet and head to move with the torso. The HANS keeps the head and helmet in normal relationship to the torso despite the elongation of the belts.
4-Second Mark: - (Top) The neck loading increases as the unrestrained head reaches maximum excursion, increasing tension in the neck beyond the threshold for serious or fatal injury.
- (Bottom) The HANS continues to be held in place by the friction rubber on the legs during the forward movement of the torso. The tethers straighten fully and remain substantially horizontal, keeping the head in normal relationship to the torso.
5-Second Mark: - (Top) Instrumentation in dummy confirms the neck tension threshold for a serious or fatal injury - 4,000 Newtons - has been crossed.
- (Bottom) The HANS restrains the head and instrumentation in dummy confirms neck tension is kept far below the threshold for serious or fatal injury.
The HANS Device is the most trusted head and neck restraint in the world. The HANS Device was first used in competition in 1986 and has been continually developed and tested to the level of performance it is today. It is the only head and neck restraint that exceeds both the SFI and FIA specifications for performance. Also, the HANS Device is one of only two devices approved for use by NASCAR.
There are two specific models of the HANS Device currently available, the Professional Series and the Sport Series. Professional Series devices are made with high modulous carbon fiber and higher performance epoxy resins to achieve the lowest weight possible. The Sport Series is an injection molded carbon composite and weighs a little more than a like configured Professional model. Either series can be used with SA (predrilled or no hole) and SAH (predrilled threaded hole) helmet systems. All HANS Devices have the same performance that exceeds the stringent SFI and FIA performance parameters. Kits includes anchors, sliding tether, foam padding, Loc-tite, special wrench and instructions. Available with standard post style anchors or with the Quick Click anchors that allow instant connect or disconnect.
SFI 38.1 Approved.
 
 
CAPE Test Dec. 2012 With/Without Head Restraint 42mph from Professor HANS on Vimeo.
NOTE: This is a high-speed video replayed in slow motion. The elapsed times on the video are marking points for the slow motion replay. Five seconds in this video equate to 100 milliseconds in real time. (An eye blink lasts 400 milliseconds.)1-Second Mark:The torso is held in the seat by properly tightened belts. Helmets are properly fastened.
2-Second Mark:The torso begins to move forward due to belt elongation and compression of the dummy.
3-Second Mark:
