Letter, John Whitehead to Stella Randolph, Sept. 3, 1934 p.4 (numbered 3)
Flying Machines we decided to build a flying
fish type aeroplane, designed together an
improved steering device incorporating a
joint control of wing tips and both horizontal
an[d] vertical rudder, we made a fair sized
model of body with wings and tail, flew it as
a kite, had also a photo taken of same.
Letter, John Whitehead to Stella Randolph, Aug. 6, 1934, p.3
Rudder was a combination of horizontal
and vertical finlike affaire, the principle the
same as in up to date Aeroplanes. For steering
there was a rope from on [of] the most forward Wingtip ri[b] to the one opposed running over a pull[e]y, in front of operator a lever was connected to pull[e]y, the same pully controlled also the tail rudder at the same time.