Science: Maple Seed Wing

An ingenious aerial-delivery gadget was announced by the Air Technical Service Command last week. It is a rotary wing, shaped much like an ordinary maple seed, that twirls to earth without benefit of “umbrella” or rigging. The bulbous plastic container, hitched to the wooden blade, can hold 65 lbs. The rate of fall is slightly faster than a parachute’s, but the “Sky Hook” is not subject to the wind drift that makes parachuting of supplies inaccurate from high (safe) altitudes.