To test wing
lift data, the Wright Brothers
placed a wheel horizontally on the front of a bike. They placed wing models
on opposite sides of the wheel (left and right) at certain angles to test
data that Otto Lilienthal
produced in 1889.
In this experiment
you will also try to obtain the lift experienced by models. Rather than
attaching a wheel, a bar attachment will be easier, especially since you
attached a bar to a bicycle in a previous
experiment which qualitatively measured lift.
Attach a horizontal
bar to the bike frame so that the bar stretches over the front tire. On
the bar, attach an additional bar that is hinged upward. Attach the wing
model as far out on the bar as possible. This allows for maximum torque
and for lift to be easily observed. A hook for masses should be attached
to the bar directly under the model wing attachment sight.
The diagram shown
below will help you produce the bar attachments.