In Case You Missed It
Build Your Own Leak-Down Tester
Converting a Harbor Freight compression tester for aircraft engine use.
Around the Patch
Editor-in-Chief Marc Cook saw some reasons to be cheerful at AirVenture, especially the upcoming refinement of the 51% rule for homebuilders.
Tweaking an Engine/Airframe For Efficiency
When an aircraft engine is tightly cowled without cowl flaps, running hot can be a problem. But there are solutions, as author Amy Laboda found out after much research and experimentation.