Quencher’s hourly operating cost is dramatically lower than any crewed water-bomber — less than half the Fire Boss and nearly one-tenth the CL-415/CL-515.

Sources: Fire Boss LLC specifications; Bombardier CL-415 and De Havilland CL-515 manufacturer data; ICAO Carbon Emission Factor (3.16 kg CO₂/kg fuel); Marcos Aerospace internal model (2025).

Quencher delivers the lowest carbon footprint of any aerial firefighting aircraft — less than half the emissions of Fire Boss, CL-415, or CL-515.

Sources: Fire Boss LLC specifications; Bombardier CL-415 and De Havilland CL-515 manufacturer data; ICAO Carbon Emission Factor (3.16 kg CO₂/kg fuel); Marcos Aerospace internal model (2025).

Quencher delivers each tonne of water 3× cheaper than the Fire Boss and over 6× cheaper than CL-415/515, under the same mission conditions.

Values based on a standard scenario of six drops per hour. Water mass calculated as 1 tonne per 1,000 L. Aircraft capacities sourced from Fire Boss LLC, Bombardier CL-415, and De Havilland CL-515 data. Operating cost inputs reflect Marcos Aerospace’s internal 2025 model.

Quencher’s full 10-year cost is lower than the Fire Boss — and almost one-tenth the cost of a CL-515. This makes large-scale national deployment financially achievable for the first time.

10-year cost includes operating expenses based on 400 flight hours/year and straight-line depreciation of each aircraft’s purchase price over 20 years with a 10% residual value. Hourly operating costs use Marcos Aerospace’s internal 2025 model and publicly available aircraft specifications. Values shown are indicative for comparative analysis only.