A red and green light, marking the wing tips of a plane, were visible.
He and Bill went too close, and tore one of their wing tips.
Members of the ground crew took up their stations at the wing tips.
Save the neck, wing tips, heart, gizzard and liver for soup.
The side-to-side balance was maintained by ailerons in the form of wing tips set at the outer rear edges of the main planes.
Normally the wing tips are held horizontal by stiff springs introduced in the cables outside of the device.
The wing tips are held in place with a special two-piece casting which forms a hinge, and makes a quick detachable joint.
A last adjustment was made of the planes, wing tips and rudders, and the motor was given a try-out.
Later, when work was begun on these wing tips, the boys fully understood Hawke's theory.
This model measured a little more than 12 feet across its wing tips, and was about 16 feet long.