'In 1907 Paul Cornu became the first man to fly freely in one of these horizontally rotored aircraft'
a helicopter
ADVENTURES IN THE AIR: In 1907 Paul Cornu became the first man to fly freely in one of these horizontally rotored aircraft
In 1907 Paul Cornu became the first man to fly freely in one of these horizontally rotored aircraft
In 1907 Paul Cornu became the first man to fly freely in one of these horizontally rotored aircraft
ADVENTURES IN THE AIR
a helicopter
ADVENTURES IN THE AIR