The Modular Aerial Fire Fighting Systems (MAFFS) have been instrumental in transforming military transport aircraft into effective aerial firefighters. David Sarnoff, Executive Director for the MAFFS program, explained the system's operation and benefits in an interview with Simple Flying.
MAFFS is a "roll-on, roll-off solution" that can be installed on aircraft like the C-130 Hercules without structural modifications. This system allows these planes to function as water bombers, capable of dropping retardant or water to combat wildfires. The California Air National Guard regularly conducts exercises to practice this installation and usage.
Sarnoff detailed that MAFFS is most effective when used to lay down retardant ahead of flames, allowing ground crews to create firebreaks. The system is employed after traditional waterbomber resources are exhausted by agencies such as Cal Fire and contracted providers like Coulson Aviation.