This Altitude Compensation Induction System is lightweight and efficient, allowing the RI 162F engine to maintain standard sea level performance up to higher density altitude than ever before. By not demanding any more power at altitude than is produced at sea level, the life of the engine is unaffected, while its performance at higher altitude is enhanced. Utilizing a belt-driven supercharger concept, cooler outside air is compressed to a set pressure. This method does away with the hotter intake air and lag associated with a turbocharger. The pressurized air from the ACIS is made available to the intake system through the throttle valve.
Manifold pressure is limited only by the amount of compressed air available.
Unique to this system is the continued redundancy of the RI 162F engine. This follows RotorWay's goal to provide a failsafe system for the Exec 162F . The ACIS system is the result of hundreds of hours of research and successful testing, meeting strict standards set by RotorWay International for all new products. It was subsequently upgraded to Exec 90 standard with a large number of detailed alterations. Over 200 Execs are flying.