This is a very critical bolt that attaches the horizontal stabilizer to the fuselage in an aerobatic airplane. The bolt is not tight, and the hole is out of round!
In Case You Missed It
Engine Beat
Steve Ells explains the science of alternators, and offers some tips for understanding and troubleshooting problems with the system.
Meet the Bull Moose
All Moose, no bull—a throaty American V-8 motivates this outsized Canadian bush plane.
Understanding Experimental Light Sport Aircraft
Dave Martin explains the different designations of factory-built and Experimental Light Sport Aircraft and how they continue to evolve.