Brewster Buffalo Fuel Pumps

[Leo Etgen]

Hi guys

I am hoping that some knowledgeable persons can help me with a question about the Brewster Buffalo Mk I (B-339E) concerning the Pratt & Whitney Hornet fuel pumps that are stated to have been fitted to some aircraft. Is it known approximately how many aircraft were fitted with these? Did only the aircraft fitted with reconditioned engines (approximately 50 of the 70 AN-series) have these fuel pumps installed? I understand that the fuel system of the B-339E was unpressurized thus forcing pilots to utilize a cockpit toggle pump at altitudes above 15,000 feet and did this have anything to do with having the inadequate Pratt & Whitney Hornet fuel pump installed? Many thanks for any help.

Horrido!

Leo