Boeing 737 MAX 10: 230-Seat Specs, LEAP-1B Engines & 2026 FAA Certification Status

The Boeing 737 MAX 10, the largest member of the 737 family, is entering its final and most critical certification phase with the FAA as of January 2026. Designed to directly challenge the Airbus A321neo, this stretched narrow-body aims to deliver maximum capacity and efficiency. Here is the complete technical breakdown based on the latest data.

1. Dimensions & Capacity

As the "stretched" variant, the MAX 10 maximizes the 737 platform's potential.

  • Passenger Capacity (Max): 230 passengers in a single-class, high-density configuration.
  • Typical 2-Class Capacity: 188-204 passengers.
  • Overall Length: 143 ft 8 in (43.8 m) – making it the longest 737 ever built.
  • Wingspan: 117 ft 10 in (35.9 m) with Advanced Technology Winglets.

2. Powertrain & Propulsion

The MAX 10 is powered exclusively by CFM International's LEAP-1B engines, designed for maximum fuel efficiency.

  • Engine Model: 2x CFM International LEAP-1B.
  • Thrust per Engine: Up to 29,300 lbf (130 kN).
  • Fan Diameter: 69.4 in (1.76 m).
  • Fuel Efficiency: Delivers 20% lower fuel consumption and CO₂ emissions compared to the previous generation (737 NG).
  • Engine Anti-Ice System: Currently undergoing final FAA certification fixes to prevent overheating in composite inlets.

3. Performance Figures

  • Range (Max Payload): 3,300 nmi (6,110 km).
  • Maximum Takeoff Weight (MTOW): 197,900 lb (89,800 kg).
  • Maximum Landing Weight: 178,800 lb (81,100 kg).
  • Typical Cruise Speed: Mach 0.79 (453 kn; 839 km/h).
  • Ceiling: 41,000 ft (12,500 m).

4. Key Design Features

To accommodate its longer fuselage, the MAX 10 introduces a unique undercarriage feature:

  • Levered Main Landing Gear: A telescoping mechanism allows the landing gear to extend longer during takeoff rotation, providing up to 8 inches (20 cm) of additional clearance to prevent tail strikes.
  • Advanced Technology Winglets: 9.5 ft (2.9 m) tall winglets for reduced drag and improved fuel burn.

5. Cockpit & Avionics

The flight deck features Boeing's latest advancements based on 787 Dreamliner technology.

  • Displays: 4 large-format (15.1 inch) landscape LCD screens.
  • Enhanced Crew Alerting System: Redesigned software to prioritize critical alerts and reduce pilot confusion during non-normal situations.
  • Angle of Attack (AoA) Sensors: Improved sensor logic and alerting to minimize nuisance warnings while maintaining safety margins.

CERTIFICATION STATUS: FAA Phase 2 (Jan 2026)

As of January 2026, FAA pilots are conducting Operational Readiness Flights (Phase 2) to evaluate real-world handling characteristics. Final certification is expected in late 2026, with first deliveries to customers like Alaska Airlines and WestJet projected for 2027.

Complete Specs Summary Table

Specification Detail
Variant737 MAX 10
Length143 ft 8 in (43.8 m)
Wingspan117 ft 10 in (35.9 m) with winglets
Max Capacity230 passengers
Engines2x CFM LEAP-1B (29,300 lbf each)
Range3,300 nmi (6,110 km)
MTOW197,900 lb (89,800 kg)
Cruise SpeedMach 0.79 (453 kn)
Ceiling41,000 ft (12,500 m)
Certification StatusFAA Phase 2 (as of Jan 2026)
First Delivery (est.)2027

Conclusion: Boeing's Strategic Answer to Airbus

The 737 MAX 10 is more than just a larger 737; it's Boeing's strategic weapon to compete in the high-density narrow-body market against the A321neo. With 230 seats, 20% better fuel efficiency than its predecessor, and a redesigned landing gear, it offers airlines the lowest seat-mile cost in its class. Successfully navigating the final FAA certification hurdles in 2026 will be critical for Boeing to start deliveries in 2027 and regain financial footing.

Source: Boeing Technical Data | CFM International | FAA | Speedo Science Database

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