Tag: 737

Coulson Aviation is adding not only additional air tankers to its fleet, but is branching out into a different model of aircraft. The company has purchased six 737-300s and intends to convert them into 4,000-gallon “Fireliner” airtankers. Britt Coulson said they saw an opportunity when Southwest Airlines made a decision to replace their 737-300s with the new 737-Max. Because the FAA only allows Southwest pilots to fly two of the 737s with the same rating, the airline opted to sell the 737-300s even though they have a relatively low number of hours in the sky.

The first conversion has started, with a freshly painted 737 scheduled to roll out of the paint shop in Spokane on May 22, 2017. The next step is to add the gravity-based tanks that will have the same technology used on their C-130s.

The airtanker is being designed as a multi-use aircraft with the ability to haul passengers. Mr. Coulson said, “With a full retardant load and 4.5 hours of fuel we are so far under max gross weight we are going to leave the full interior and galleys in even when just in airtanker mode.”

The company likes the three C-130s they have already converted to airtankers, but finding additional C-130s for the civilian market is very difficult.

A 737 will be able to use some tanker bases that larger aircraft, like the C-130, can’t, with a wingspan that is about 38 feet shorter.

Mr. Coulson said they expect to begin installing the retardant system in June with a completion date of December of this year. When that is complete they will start on another. The first conversion will be done by Coulson Aircrane Canada.

More photos of the aircraft.