In Case You Missed It
Carbon Monoxide Blues
Although not a huge factor in airplane crashes, carbon monoxide poisoning does contribute to accidents each year. This is entirely avoidable with a good, functional carbon monoxide detector in the cockpit. The choices in these units have increased over the years, so now there's no excuse to do without this useful tool; by Rick Lindstrom.
Stressing Structure Series Reference Library
The engineering publications referenced in the KITPLANES series "Stressing Structures" by David Paule.
Two-axis Electric Trim Controller for Under $50
This homebuilt two-axis electric trim controller has all the functions of the fanciest commercial units, yet it costs less than $50 for the parts.