External Auxiliary Tanks:

Two externally mounted Kevlar® fuel tanks providing an additional 140 gallons of usable fuel, extending endurance by 1.5 hours. This system is compatible with internal auxiliary fuel system for military and commercial aircraft and is compatible with OEM float systems. Complete utilization of 13 passenger seats, or all cabin volume for cargo.

Internal Auxiliary Tanks:

Two internally mounted aluminum fuel tanks providing an additional 280 gallons of usable fuel, extending endurance additional 3.1 hours.