![SR-1 cowl being integrated with spinner and cooling ducts. The cowl is assembled to itself/to the fuse primarily with countersunk #8 screws. [All images credited to Eric Stewart]](https://www.kitplanes.com/wp-content/uploads/2026/09/1KP.jpg?w=534&h=462&crop=1 "Custom Cowl Fabrication: Building the SR-1 Composite Cowl")
![Trimming composites gets the full PPE job. [Credit: Eric Stewart]](https://www.kitplanes.com/wp-content/uploads/2026/07/7-2.jpg?w=265&h=198&crop=1 "A Few of My Favorite Tools")
![Lowell Farrand spent years serving as an FAA DAR and is in the EAA Hall of Fame. He offers sound advise to builders. [Credit: Bill Wilson]](https://www.kitplanes.com/wp-content/uploads/2026/05/unnamed-4.jpg?w=265&h=198&crop=1 "Think Like a Builder")
![Author Bill Wilson takes a break from measuring and cutting the Lexan windshield during his Onex build. [All Images Credit to Bill Wilson]](https://www.kitplanes.com/wp-content/uploads/2026/04/image-2.jpg?w=265&h=198&crop=1 "Think Like A Builder")
Unairworthy: Loose Tail Attach Bolt
This is a very critical bolt that attaches the horizontal stabilizer to the fuselage in an aerobatic airplane. The bolt is not tight, and...
In Case You Missed It
Down to Earth
Amy Laboda discovers that a newly installed EFIS, six-weeks away from her RV-10 and an acute caffeine deficiency challenge her inner student.
A Baker’s Dozen
Vic shares his decision process for both choosing another RV-10 as well as choosing some of the “upgrades.”
Ask the DAR
DAR Mel Asberry clarifies what notification the FAA expects when a prop has been changed. His advice? Treat it like a major mod.