Large Amphibious Aircraft with 60 Tons Maximum Takeoff Weight, 12 Tons Water Carrying Capacity, and 4,500 km Maximum Range

• Overall length: 37 m, wingspan: 38.8 m, height: 12.1 m
• Configuration: Single-hull amphibious aircraft with high-mounted wings and retractable tricycle landing gear
• Capable of both land and water takeoff and landing
• Powerplant: Four domestic turboprop engines with six-blade composite propellers
• Crew capacity: 3 operators (captain, co-pilot, mission specialist)

• Maximum takeoff weight: 60 tons
• Maximum water carrying capacity: 12 tons
• Fully filled with water after 20 seconds of water surface taxiing
• Fully refilled on land within 12 minutes
• Total water delivery capacity per full-fuel sortie: around 370 tons
• Single water drop covers a fire area of about 4,000 square meters
• Maritime rescue capacity: Accommodates up to 50 survivors
• Optional onboard medical rescue cabin

• Cruising speed: 480-500 km/h
• Minimum safe flight speed: 220 km/h for stable low-altitude water dropping
• Maximum range: 4,500 km, maximum endurance: 12 hours
• Rescue coverage radius over open sea reaches 1,600 km
• Sea state tolerance: Safe takeoff and landing in wave heights of at least 2 meters
• Operating water depth: Inland lakes require water depth over 1.5 m; coastal operations need at least 2 m of water
• No requirement for deep-water dedicated docks
• Pressurized cabin ceiling altitude: 7,600 m, supporting long-distance cross-regional deployment

• Largest in-service amphibious aircraft by maximum takeoff weight globally
• Superior to overseas counterparts in tonnage, with far larger water carrying capacity
• Lifting fire suppression efficiency by 30%-50% per sortie
• Dual land-water operation with minimal site restrictions
• Outstanding rough sea adaptability
• Long range and endurance for rapid cross-regional emergency response
• Complete domestic supporting supply chain
• Cost advantage in procurement

• Optimized platform for forest fire suppression
• Multi-functional open-ocean search and rescue capabilities
• Expandable multi-variant platform with 30+ year service life
• Policy-backed domestic market demand

• Higher fuel consumption from four-engine turboprop layout
• Complex anti-corrosion maintenance for waterborne operations
• Reliance on open water areas for operations
• Barriers to overseas airworthiness certification
• Slow production capacity ramp-up

• Fuel expense accounts for the majority of hourly costs
• Remaining costs cover crew salaries, lubricants and routine consumables

• Routine scheduled inspection and anti-corrosion upkeep
• Engine overhaul cycle every 3,000 flight hours
• Spare parts stock and ground support requirements

• 30-year service lifespan
• Cumulative operation and maintenance expenses: 1.8-2.2 times the base procurement cost
• Bulk government procurement can reduce costs by 15%-20%

The core competitiveness of this large amphibious aircraft lies in heavy payload, long endurance, strong rough sea adaptability and cost-effective localized manufacturing alternatives. It serves as an irreplaceable strategic equipment for domestic forest fire suppression and open-sea search and rescue.

Despite higher hourly operation costs, its drastically improved efficiency in fire suppression and rescue makes it the more economical choice for large-scale emergency missions when measured by unit task output.