We have one AB-139 with an AUX fuel tank. The irony is that until we get a gross weight upgrade beyond 14,110 lbs...the tank is essentially unusable:
With a 400 lb. crew weight and enough weight in the front row of seats to bring it into CG with a full AUX tank, you are over MGW. Nearly 3700 lbs. of fuel would allow the AB-139 longer legs offshore than an S-76C+, but not until the gross weight is increased.
We hear the increase in gross weight is coming...but then, Agusta has promised us the 4th AFCS cue for years without delivering...
