Ernest Christley wrote:

Heh, Matt. Why build the complexity of a channel. Use a coolant that
doesn't evaporate and just spray the coolant on the inside of the wing.
Collect it in a sump at the wing root. Considerable dihedral would be
beneficial.

Seems like there'd be considerable danger of sucking air into the
sytem during an ucoordinated turn though, unless you had a LOT of
extra coolant in the system.

Mark Hickey