Firewall Forward

Other Engines Discussion of other, non-factory approved, engines (Revmaster, Great Plains, Hummel, Corvair, Viking, etc.) Aerovee Discussion of the Aerovee kit engine. Rotax Discussion of the Rotax 912 series engines. Fuel System Discussion related to fuel system design, installation, and maintenance. Propellers Discussion of propellers. ULPower Discussion of the UL Power engines. Jabiru Discussion of the Jabiru 2200 / 3300 engines.