The retrofitting of a cockpit with a Head-Up-Display (HUD) raises potential accommodation and perceptual issues for pilots that must be addressed. For maximum optical efficiency, the goal is to be able to place every pilot’s eye into the HUD Eye Motion Box (EMB) given a seat adjustment range. Initially, the Eye Reference Point (ERP) of the EMB should theoretically be located on the aircraft’s original cockpit Design Eye Point (DEP) while horizontal and vertical seat adjustment would allow pilots to position their eyes inside the EMB. However, human postures vary, and HUD systems may not be optimally placed. In reality there is a distribution of pilot eyes around the DEP (which is dominant eye dependent) therefore this must be accounted for in order to obtain appropriate visibility of all of the symbology based on photonic characteristics of the HUD. Pilot size and postural variation need to be taken into consideration when positioning the HUD system to ensure proper vision of all HUD symbology in addition to meeting the basic physical accommodation requirements of the cockpit. The innovative process and data collection methods for maximizing accommodation and pilot perception on a new “tactical airlift” platform are discussed as well as the related neurocognitive factors and the effects of information display design on cognitive phenomena.
Harbour, S. D.,
Hudson, J. A.,
& Zehner, G. F.
(2013). Perceptual and Adaptation Implications with Display 3-D Spatial Location: Retrofit of HUD on a Tactical Airlift Platform. 17th International Symposium on Aviation Psychology, 627-632.