Brad, first let me say you are a master of pre-shading! You are so right
about the amount of masking, but the way you are progressing, it will be
worth it!
I was snooping around google regarding the little airscrew pump setup
and about all I could find was a bit on it in the write-up about the tripe on
the flight global website. Basically it said that the fuel was pumped to the
engine by the little propeller mounted on the right side fuselage strut.
Sorry I couldn't help more.

Cheers,
Ernie
