|Category:||Head-Mounted Equipment [HMD/NVG/Glasses]|
|Object Name:||Helmet Mounted Display|
|Year of Manufacture:||Unknown|
|Location:||Archive Object Store|
This is the outer shell showing the Optical Head Tracker. The bumps on the shell house an LED and these are pulsed at intervals to be picked up by three cockpit mounted sensors; two forward looking back at the pilot and one at the back of the cockpit looking forward at the helmet, such that the pilot’s head position and line of sight can be determined.
The assembly also has the umbilical cable terminating in a Quick Release Connector; absolutely vital to release the cable on ejection.