Found this on a post flight inspection after sending off the Trike Globetrotters. Apparently the 1/8" aluminum had enough vibration where mounted that it fatigued the metal and it cracked straight through. Always to a post flight, You never know what you might find.
Jaggies are due to panorama mode of camera. @Ttabs led us on a geologic expedtion down to RockLake. Stepto is an old volcano now partially burried in the plains...