Grumman AA1/A/B/C Spinner

Description

These composite materials spinners and bulkheads are FAA/PMA approved and STCs to replace aluminum spinners and bulkheads on the Grumman aircraft models listed below. Bulkheads are constructed for maximum strength and resistance to fatigue due to vibration. Grummans metal versions often crack in 200-300 hours, whereas the composite assemblies have been tested over 4000 hours on a PA-28 with no failure. Spinners for twins & all bulkheads are warrantied against vibration fatigue for 5 years of the aircraft by the factory. Includes Washers.