1122

On Flying machines.

Man when flying must stand free from the waist upwards so as to be able to balance himself as he does in a boat so that the centre of gravity in himself and in the machine may counterbalance each other, and be shifted as necessity demands for the changes of its centre of resistance.

Taken from The Notebooks of Leonardo da Vinci edited by Jean Paul Richter, 1880.

Notebooks of Leonoardo da Vinci
XVIII: Naval Warfare.--Mechanical Appliances.--Music.
. . .
The ship’s logs of Vitruvius, of Alberti and of Leonardo.
1113
Methods of staying and moving in water.
1114
On naval warfare.
1115,
1116
The use of swimming belts.
1117
On the gravity of water.
1118
Diving apparatus and Skating.
1119,
1120,
1121
On Flying machines.
1122,
1123,
1124,
1125,
1126
Of mining.
1127
Of Greek fire.
1128
Of Music.
1129,
1130
Of decorations.
1131