From The Collaborative International Dictionary of English v.0.48 :
Sky pilot \Sky pilot\ (Aeronautics)
A person licensed as an airplane pilot. [Slang]
[Webster 1913 Suppl.]
From WordNet (r) 3.0 (2006) :
sky pilot
n 1: a chaplain in one of the military services [syn: military
chaplain, padre, Holy Joe, sky pilot]