In Case You Missed It
Build A Spark Plug Resistance Tester
Checking resistance is an important part of plug maintenance. By Michel Suire.
Light Stuff
This month, Light Stuff columnist Dave Martin briefly reviews the history of single-seat ultralights and predicts their future as ELSAs. Assuming they are neither fat nor too fast, getting the required training may still be a stickler.
25th Anniversary: Engine Monitoring Comes of Age
Whats happening behind that firewall? Marc Cook traces the lineage of engine monitors over the past 25 years.