RAT 5
Indeed! Note in my original post I said I was wanting to quantify the energy WASTED by having the lights extended.
At the moment it is standard company procedure to have them extended below 10,000 ft regardless of airspeed, and yes it is for anticollision purposes! I am hoping to have some influence to change this policy by pointing out how much energy and hence fuel is being wasted on a fleet-wide basis every day.
I need the collective knowledge of pprune to help me with this endeavor.