This week the investors that own the Global SuperTanker just informed me that they have made the difficult decision to cease operations of the company, effective this week…This is extremely disappointing as the aircraft has been configured and tuned with a new digital drop system and other upgrades to make it more safe and efficient. //
In an April 2020 letter posted on the National Wildfire Coordinating Group’s website the Chair of the National Interagency Aviation Committee, Joel Kerley of the Bureau of Indian Affairs, wrote to Global Supertanker Services saying the Committee would not issue a seventh interim approval of the aircraft’s retardant delivery system:
The Interagency Air Tanker Subcommittee does not support any further interim approvals without correcting some issues originally identified in the 2009 test of the system that included failure to meet coverage level 3 & 6, retention of retardant in the system after drop, aeration of the retardant causing trail off, and inconsistent flight profiles affecting retardant coverage.
Due to the current national situation regarding the Coronavirus (COVID-19), NIAC will issue an eighth interim approval to GSTS. However, NIAC will not support, nor issue a ninth interim until GSTS successfully passes all requirements of the 2013 IABS Criteria. This must be completed prior to December 31, 2020. //
Most large air tankers carry up to 3,000 gallons of retardant. The 747 is capable of carrying far more retardant than any other. When first introduced it was listed at 20,000 gallons. Then the federal government certified it at 19,200 gallons. More recently it was required to carry no more than 17,500 gallons. The second-largest capacity air tanker is the Russian-made Ilysushin IL-76 at 11,574 gallons. The DC-10 until a couple of years ago was allowed to hold 11,600 but federal officials now restrict it to 9,400. //
I asked a Lead Plane Pilot who has worked with Tanker 944 for his impressions of the aircraft. He is currently active and not authorized to comment publicly:
It’s a specialized tool, and as such it has a niche that it fills and in that niche there’s nothing else any better. That is, it puts out a huge amount of retardant in one pass, and that sometimes can be a great thing. It can travel halfway around the world and deliver product. Having said that it is also a specialized tool in that it isn’t very good at doing the little stuff.
I asked him about the retardant that sometimes trails off after a drop:
That trail off, that’s something they can beat them over the head with, but at the end of the day hardly anybody I know gives a s**t about it. Ok, well, it’s not a perfect tank.
