In Case You Missed It
Build Your Skills: Composites (Part 7)
Author Bob Fritz explains how to set up a vacuum-bagging operation in your home shop, using readily available equipment and supplies, which will get you great results on small- to medium-size parts. The object is to mechanically squeeze out excess epoxy for a good-ratio part with maximum weight savings and strength.
Wind Tunnel
Once designers had addressed every other drag-producing aspect of the biplane, they decided to get rid of the struts and wires bracing the wings—and the switch to the monoplane was made.