ABOUT THE CESSNA 337

Understanding the unique push-pull Skymaster design and why it remains a compelling choice for serious pilots.

The Centerline Thrust Advantage

The Cessna 337 Skymaster represents a unique solution to the challenges of light twin-engine aircraft. By placing one engine in the nose and another in the rear fuselage, both mounted on the aircraft's centerline, Cessna eliminated the critical engine problem that complicates conventional twin operations.

In a conventional twin, losing one engine creates asymmetric thrust that can lead to loss of control if not managed properly. The Skymaster's centerline thrust configuration means that losing either engine results in straightforward, predictable handling with no asymmetric thrust to manage.

This design philosophy earned the Skymaster the nickname "the twin-engine aircraft that flies like a single" - combining the safety and redundancy of twin engines with handling characteristics closer to a high-performance single.

Development History

Origins (1961-1963)

Cessna began development of the Model 336 in the early 1960s, seeking to create a twin-engine aircraft that would be easier and safer to fly than conventional twins. The original 336 featured fixed landing gear and was introduced in 1963.

Model 337 Evolution (1965-1980)

The Model 337 introduced retractable landing gear in 1965, improving performance and giving the aircraft its distinctive profile. The 337C variant, produced from 1968-1970, featured refinements including improved engine cooling and updated systems. Production continued through various models until 1980, with over 2,900 aircraft built.

Military Service

The U.S. Air Force operated the O-2 Skymaster (military designation for the 337) extensively during the Vietnam War for forward air control missions. The aircraft's reliability, visibility, and ability to operate from short fields made it ideal for this role. Military Skymasters accumulated millions of flight hours, proving the design's durability.

Key Advantages

No critical engine - centerline thrust eliminates asymmetric thrust

Simplified engine-out procedures compared to conventional twins

Better single-engine performance than most light twins

Excellent visibility with high-wing design

Spacious cabin with comfortable seating for 6

Long-range capability with optional fuel tanks

Proven reliability in military and civilian service

Strong type club support and parts availability

Typical 337C Specifications

Engines
2 × Continental IO-360, 210 HP each
Cruise Speed
173-180 mph
Range
900-1,200 miles (depending on tanks)
Service Ceiling
19,500 ft
Rate of Climb
1,340 fpm (both engines)
Stall Speed
61 mph (clean)
Takeoff Distance
1,790 ft
Landing Distance
1,395 ft

Ownership Considerations

Maintenance Advantages

The Skymaster's proven design is well-supported by experienced mechanics nationwide. N2645S benefits from expert care by an A&P/IA with over 3,000 hours of Skymaster experience, ensuring proper maintenance of this reliable twin. The type's straightforward systems and robust construction make it an excellent long-term ownership proposition.

Smart Operating Economics

The Skymaster delivers twin-engine safety at remarkably efficient operating costs. Fuel consumption of 20-25 GPH combined is significantly lower than conventional twins like the Baron or Seneca. Insurance costs are typically 20-30% less than standard twins thanks to the forgiving centerline thrust configuration. You get true multi-engine redundancy and safety without the premium operating costs of conventional twins.

Easy Transition & Safety

The Skymaster is renowned as the easiest twin to fly, making it perfect for pilots transitioning from singles. The centerline thrust eliminates critical engine concerns and VMC rollover risks that plague conventional twins. Most pilots complete transition training in just 5-10 hours. The forgiving handling characteristics and no asymmetric thrust issues mean you focus on enjoying twin-engine safety and capability, not wrestling with complex emergency procedures.

Community & Support

The Cessna Skymaster enjoys strong community support through active type clubs and owner groups. The Cessna Pilots Association and dedicated Skymaster forums provide valuable resources for maintenance, modifications, and operational advice.

Parts availability remains good for most components, with both OEM and aftermarket suppliers supporting the fleet. The aircraft's long production run and military service history ensure continued support for the foreseeable future.

Why N2645S Stands Out

This particular 337C represents an exceptional example of the type, combining low total time, modern avionics, mid-time engines, and expert type-specific maintenance. The substantial investment in glass cockpit technology and careful restoration make it a turnkey aircraft ready for serious cross-country IFR operations.