Typed notes on “Written communication by F.W. Lanchester … relating to paper on “Profile Drag …”

Scope and Content

Published in the Journal of the Royal Aeronautical Society (Vol. 41, 1937, pp. 363 – 365). Comments on: boundary layer, in particular Prof. Jones’ distinction between “Viscous sub layer” and “displacement layer”; drag on an aerofoil; effect of change of pressure on stability of flow’ correctness or otherwise of figure 6 in Jones’ paper; theory of roughness. Figures A and B referred to in the communication and in LAN/1/2/29 and LAN/1/2/30 do not appear in these documents, but do appear in the Journal of the Royal Aeronautical Society.