[Bobalu]

The Martin Mars is a huge WW2 amphibian that has seen extensive service fighting fires...I think they are still in operating condition...just a handful were manufactured.

[Oil Object Insp]

The Martian is a large airplane, but carries less payload and can only be filled by lake skimming process.

Straight water isn’t nearly as effective as retardant mixed water.

The super tanker use is largely caused by political wrangling.