Surface is shaped to have the greatest possible span, i.e., distance from wing-tip
to wing-tip, it then engages more air and produces both a maximum Reaction and
a better proportion of Lift to Drift.
``That being so, we can then well afford to lose a little Reaction by reducing
the Angle of Incidence to a degree giving a still better proportion of Lift
to Drift than would otherwise be the case; for you must understand that the
Lift-Drift Ratio depends very much upon the size of the Angle of Incidence,
which should be as small as possible within certain limits. So what I say is,
make the surface of Infinite Span with no width or chord, as they call it. That's
all I require, I assure you, to make me quite perfect and of infinite service
to Miss Efficiency.''
``That's not practical politics,'' said the Surface. ``The way you talk one
would think you were drawing L400 a year at Westminster, and working up a reputation
as an Aeronautical Expert. I must have some depth and chord to take my Spars
and Ribs, a
