“Report No. 49. National Advisory Committee for Aeronautics, 1920, p. 30: Metering Characteristics of Carburetors.

Technical Notes No. 40, National Advisory Committee for Aeronautics, 1921, p. 3: Effect of Reversal of Air Flow Upon the Discharge Coefficient of Durley Orifices, Marsden Ware.”

Reference Data:

Bulletin, Issues 17-24, by Ohio State Univeristy, Engineering Experiment Station, 1917, page 52