A99S
The A99S (series generator system), is currently under development. It utilizes A99 core triple inline architecture, based off Cobra Aero’s A33 combustion system. It features the same great benefits of the core A99, with a purpose-designed, liquid cooled 3-phase brushless alternator.
TRL: 6
• Based off of the proven A33N core platform
• Years of combustion system development
• Flight testing with major airframe manufacturers underway.


