"This is an option to extend the range of any type of aircraft -- it requires a special license from FAA, and that permission is per-flight."
I don't think you'll find many airlines that fly passengers with bladder tanks in the main cabin. This was a 737-200 (an advanced version I think, but that's likely 1970s or 80s advanced). The 737s that fly between the mainland and Hawaii are more modern and larger variations of the 737 with a much longer range.
I don't think you'll find many airlines that fly passengers with bladder tanks in the main cabin. This was a 737-200 (an advanced version I think, but that's likely 1970s or 80s advanced). The 737s that fly between the mainland and Hawaii are more modern and larger variations of the 737 with a much longer range.