Wind tunnel pressure distribution tests on a series of biplane wing models

Montgomery Knight, Richard Noyes
naca-tn-310
Jul 1929

This report is on the changes in forces on each wing of a biplane cellule when either the stagger or the gap is varied. Since each test was carried up to a 90 degree angle of attack, the results may be used in the study of stalled flight and of spinning as well as in the structural design of biplane wings.

An Adobe Acrobat (PDF) file of the entire report:
http://naca.central.cranfield.ac.uk/reports/1929/naca-tn-310.pdf