I am an Airport Lighting Design Consultant and have been asked to undertake the design for PAPI systems for a number of aerodromes.

To undertake the PAPI system design I need to have specific information about the DHC-6 aircraft that will operation at the aerodrome; in particular the pilot eye to wheel height (Eye Path to Wheel Path) when the aircraft is in approach configuration. I require the pilot eye to wheel height (Eye Path to Wheel Path) when the aircraft is at Vref on a 3.0 degree approach.

Can anyone assist me with my inquiry.