Cessna 337: Definition, Specs, Cons, Operation

Cessna 337 is a twin-engine, fixed-wing aircraft known for its unique push-pull configuration. The design places one engine at the front and another at the rear of the fuselage. Cessna 337 operates as a high-performance light aircraft suitable for various missions. The aircraft exhibits notable dimensions, weight distribution, engine performance, and payload capacity. Learn about Cessna 337's size, weight, engine specifications, and operational capabilities.

The Cessna 337 Skymaster features a length of 29 feet 9 inches (9.07 meters) and a wingspan of 38 feet (11.58 meters), contributing to its lift and versatility. Continental IO-360-C/D/G engines generate 210 horsepower each, with constant-speed propellers optimizing performance across flight conditions. The fuel system holds 93 gallons (352 liters) of Avgas, maintaining a range of 922 miles (1484 kilometers) under optimal conditions. The aircraft accommodates one pilot and up to five passengers, achieving a maximum speed of 172 knots and cruising efficiently at 169 knots. A service ceiling of 18,000 feet (5,486 meters) ensures effective operation at high altitudes.

Common problems with the Cessna 337 include engine overheating caused by rear engine cooling inefficiency, in hot climates. Fuel system contamination arises from water or debris entering aging components, leading to engine starvation or pump failures. Electrical system faults result from aging wiring near the rear engine, causing short circuits or battery drainage. Avionics malfunctions occur due to outdated components or software glitches, while landing gear issues stem from hydraulic leaks or mechanism jams. Structural fatigue affects wing spar attachments and engine mounts after extended flight hours, with corrosion accelerating deterioration in humid environments.

The Cessna 337 operates in extreme weather conditions within defined limits. Temperatures ranging from -20°C (-4°F) to 40°C (104°F) are manageable, but pilots must avoid known icing conditions due to limited de-icing systems. Crosswinds up to 15 knots are acceptable for proficient pilots, while gusts over 30 knots pose risks to stability. Heavy rain or storms reduce visibility and increase vulnerabilities, requiring reliance on instrument flight rules. Manufacturer guidelines emphasize adherence to temperature and wind tolerances, along with proper pre-flight checks.

To find a Cessna 337 for sale, explore online marketplaces: Trade-A-Plane, Controller.com, and ASO.com. Listings on Controller.com show prices ranging from $99,000 to $115,000, while Barnstormers.com offers models like the 1975 Cessna 337P at $40,000 and the Reims Rocket P337 at $179,500. Western Skymasters LLC specializes in rare models, providing access to inventory across regions including Florida and Utah. Aircraft brokers and dedicated forums connect buyers to specific models, with detailed listings including condition reports, engine hours, and maintenance logs.

What is the Cessna 337?

The Cessna 337 is a twin-engine civil utility aircraft known as the Skymaster, featuring a unique push-pull configuration with engines mounted in the nose and rear of its pod-style fuselage. The Cessna 337 features a centerline thrust design with engines mounted in both the nose and rear of its pod-style fuselage. Twin booms extend aft of the wings, connecting to the vertical stabilizers and maximizing the aircraft's stability. The rear engine is positioned between the booms, to ensure balanced weight distribution during flight. The horizontal stabilizer connects the booms aft of the pusher propeller, completing the aerodynamic structure. The aircraft measures 29 ft 9 in (9.07 m) in length and has a wingspan of 38 ft (11.58 m), providing excellent lift and versatility.

The push-pull configuration engine arrangement of the Cessna 337 provides centerline thrust for balanced weight distribution during flight. This design cancels out the adverse effects of engine failure, guaranteeing safety for pilots operating the aircraft. The twin-boom structure connects to vertical stabilizers and contributes to stability, while the horizontal stabilizer links the booms aft of the pusher propeller. The centerline thrust design ensures longitudinal stability, offering a smoother flight experience. The Cessna 337 fuselage accommodates a crew of one and up to five passengers, making it versatile for both personal flying and small group transportation needs.

The aircraft's cockpit is designed to accommodate the pilot comfortably while enabling optimal visibility during Cessna 337 takeoff. Twin engines, mounted in the front and rear of the fuselage, produce 210 horsepower each, to maintain performance metrics like speed and climb rate. The constant-speed propellers optimize performance across various flight regimes, addressing common associated with variable speeds and conditions. The Cessna 337 range extends 922 miles (1484 kilometers) under optimal conditions, showcasing its ability to handle diverse mission requirements.

The Cessna 337 Super Skymaster belongs to the Skymaster aircraft series and features specific enhancements, including pressurization, appealing to those prioritizing comfort at higher altitudes. The twin-engine design allows for redundancy, vital during potential engine issues. Regular maintenance ensures safe operation, with engine time between overhauls around 1,500 hours or 12 years. The Cessna 337 model achieves a maximum speed of 172 knots and cruises efficiently at about 169 knots under normal conditions. A service ceiling of 18,000 feet (5,486 meters) highlights its ability to operate effectively at high altitudes where thinner air poses difficulties. The Cessna Aircraft Company manufacturer designed the aircraft to excel in light aircraft class operations, emphasizing reliability and versatility.

What are the specs of the Cessna Skymaster?

The specs of the Cessna Skymaster are given in the table below.

Each engine of the Cessna Skymaster generates 210 horsepower, utilizing Continental IO-360-C/D/G engines. The fuel system capacity of the Cessna Skymaster holds 93 gallons (352 liters), operating exclusively on Avgas.

What is the performance of the Cessna 337?

The performance of the Cessna 337 is given in the table below.

The balanced field length and precise landing requirements reflect the aircraft's ability to operate efficiently in diverse settings. Cruise speed and range demonstrate the versatility of the Cessna 337 across standard and turbocharged models. The maximum cruise speed reaches up to 195 knots for turbocharged versions like the T 337 C Skymaster, while standard models achieve speeds of 167 to 169 knots under normal conditions. The range extends to 922 nautical miles for standard models and 920 nautical miles for turbocharged variants. The rate of climb performance for the Cessna 337 is 940 feet per minute (286.5 meters per minute) under standard conditions, reducing to 300 feet per minute (91.44 meters per minute) with one engine inoperable. The service ceiling altitude limit is 18,000 feet (5,486 meters) for standard models and up to 30,100 feet (9,175 meters) for turbocharged versions. Performance variations under different load conditions highlight the aircraft's reliability in single-engine scenarios. The twin-engine push-pull configuration ensures consistent climb rates and altitude capabilities, maintaining safety and operational stability. Engine performance and reliability metrics underscore the Cessna 337's efficiency and adaptability. Modifications or updates to the aircraft enhance overall versatility in terms of fuel consumption and operational costs. The optimal cruise altitude of 10,000 feet (3,048 meters) balances speed and fuel efficiency, guaranteeing consistent performance across various missions. Industry-specific advancements contribute to sustained engine reliability, reinforcing the aircraft's suitability for personal and small charter operations.

What are the common problems with the Cessna 337?

The common problems with the Cessna 337 are outlined below.

• Engine overheating in the Cessna 337: Rear engine cooling inefficiency during high-power operations or in hot climates leads to overheating, exacerbated by aging seals and gaskets causing oil leaks.
• Fuel system contamination in the Cessna 337: Water or debris entering aging components causes engine starvation, pump failures, or in-flight emergencies, often due to extended storage or inconsistent maintenance.
• Electrical system faults in the Cessna 337: Aging wiring near the rear engine suffers from chafing, cracking, or moisture ingress, leading to short circuits or battery drainage from parasitic loads.
• Avionics malfunctions in the Cessna 337: Outdated components or software glitches in retrofitted systems cause instrument failures, requiring consistent updates for reliability.
• Landing gear issues in the Cessna 337: Hydraulic leaks, failed pumps, or mechanism jams complicate safe operations, while shock absorber wear increases rough landings and airframe stress.
• Airframe structural fatigue and corrosion problems in the Cessna 337: Wing spar attachments, bulkheads, engine mounts and fasteners weaken after 5,000 to 10,000 flight hours, with corrosion, accelerating deterioration in high humidity or salt exposure and demanding thorough inspections and timely replacements, especially in poorly maintained examples.
• Maintenance neglect in the Cessna 337: Inconsistent record keeping and skipped routine maintenance accelerate issues in engines, fuel systems, and electrical systems, reducing long-term reliability.
• Non-metallic material degradation in the Cessna 337: Seals and hoses degrade over time, increasing maintenance needs and contributing to fuel or hydraulic system leaks.
• Engine vibration issues in the Cessna 337: Misalignment or worn engine mounts cause excessive vibration, affecting performance and potentially damaging surrounding structures.

Engine overheating issues in the Cessna 337 affect the rear engine, which suffers from cooling inefficiency during high-power operations or in hot climates. Fuel contamination arises from water or debris entering aging components, leading to pump failures and line blockages. Avionics instrument malfunctions arise from outdated components or hardware failures, while avionics software glitches affect retrofitted digital systems. Software updates address these glitches but require consistent attention for reliability. Airframe deterioration includes corrosion and material degradation, exacerbated by high humidity or salt exposure.

The common problems with the Cessna 337 include engine overheating, fuel contamination, and electrical system faults.

What is a turbine conversion for the Cessna 337?

A turbine conversion for the Cessna 337 is a modification process that replaces piston engines with turbine engines like the Allison TPE-331, which produces 715 horsepower. Structural changes include reinforcing engine mounts and adapting fuel systems for jet fuel compatibility, which has an energy density of 44.4 megajoules per kilogram. Systems integration incorporates new cooling mechanisms, electrical setups, and fuel tanks to support the turbine engine's higher power output. The process requires rigorous testing and obtaining a Supplemental Type Certificate to assure regulatory compliance and safety standards. Turbine conversions enhance climb rates, increase speeds up to 200 knots, and enhance fuel efficiency at higher altitudes.


Safety and regulatory compliance remain significant during the turbine conversion process. Rigorous testing ensures the modified airframe meets strict aviation standards. A Supplemental Type Certificate guarantees supplemental type certificate safety compliance and regulatory certification. The Cessna 337 airframe compatibility with centerline thrust design aids in maintaining balance during single-engine operations, elevating safety during testing phases. Companies like Basler demonstrate feasibility through conversions like the Spectrum SA 550, reinforcing the Cessna 337 conversion platform's suitability for major modifications.

Financial investment in specialized parts like engine mounts reinforced for turbine engine high power output and adapting fuel systems for jet fuel compatibility. Skilled labor is necessary for engineering new systems, including cooling mechanisms and electrical setups. Logistical issues arise from coordinating these modifications while adhering to supplemental type regulatory certification requirements. Engine conversion kits feature modular designs that simplify installation but require comprehensive certification packages to meet engine conversion kit certification package criteria.

Can a Cessna 337 be modified for STOL (short takeoff and landing)?

Yes, a Cessna 337 can be modified for STOL (short takeoff and landing) through wing modifications, engine upgrades, and propeller optimization. The Robertson STOL kit reduces stall speed by 8-10 mph (12.87-16.09 kph), improving lift and stability. Winglets decrease takeoff and landing distances by 100 feet (30.48 meters) while increasing cruise speed by up to 8 mph (12.87 kilometers per hour) at higher altitudes. Wing alterations include leading-edge cuffs, stall fences, and winglets to enhance lift and reduce takeoff and landing distances. Leading-edge cuffs ameliorate aileron control and shorten landing distances by allowing slower approach speeds without stalling. Stall fences maintain airflow parallel to the wing, assuring consistent lift during low-speed flight. Winglets decrease takeoff and landing roll distances by 100 feet (30.48 meters). Engine upgrades to a 310 hp (231 kW) IO-550 model boost climb performance by over 75 feet (23 meters) per minute. Flap adjustments optimize deflection angles for better low-speed control, contributing to shorter landing distances and greater lift during pivotal phases of flight.

Evaluation of airframe stress and weight distribution is crucial when modifying the Cessna 337 aircraft. Modifications must remain within structural limits to guarantee safety and prevent damage. FAA or regulatory approval requires thorough documentation and adherence to guidelines for STOL certification compliance. Acquiring field approvals involves managing intricate procedures due to current regulatory climates. Landing gear modifications focus on shock absorption and gear configuration to handle increased stresses during short landings.



Compliance problems arise from long-term operational costs associated with maintaining modified components like wing modifications and flap enhancements. Documented cases show Cessna 337 conversions achieving takeoff and landing distances under 400 feet (121.92 meters) at sea level. Aerodynamic modifications focus on aspect ratio and wing area to maximize lift improvement. Propeller optimization complements engine upgrades, assuring thrust enhancement aligns with overall flight goals. Maintenance complexity decreases through gear door mods, addressing aspects of Cessna 337 weight distribution and simplifying routine inspections.

Is the Cessna 337 equipped with fuel injection?

Yes, the Cessna 337 is equipped with a continuous-flow fuel injection system that enhances engine performance. Two Continental IO-360 engines, each producing 200 horsepower, rely on this system for precise fuel delivery. Fuel is injected into the intake ports, enabling efficient combustion and consistent power output. The system includes a fuel servo with a metering jet controlled by the pilot’s mixture settings. A network of tanks, pumps, and valves ensures balanced fuel distribution to both the front and rear engines.

Does the Cessna Skymaster have amphibious capabilities?

No, the Cessna Skymaster does not have amphibious capabilities in its standard configuration. The aircraft is designed exclusively for land-based operations. The landing gear lacks hydrodynamic features necessary for water stabilization. Structural reinforcements required for water landings are absent in the Skymaster's design. Modifications for amphibious capabilities demand extensive engineering changes. Such modifications are not performed due to cost and complexity.

Amphibious functionality is not an original feature of the Cessna Skymaster. The aircraft's design focuses on land-based operations, evident in its fixed gear system and structural configuration. No known examples exist of successful conversions to enable water operability. Amphibious conversion kit integration compatibility remains limited due to the Skymaster’s structural limitations for water operations. Modifications require installing aircraft floats with sufficient buoyancy provision and reinforcing the airframe to handle water impact stresses. Such engineering efforts are extensive and costly, making amphibious conversion kit retrofit adaptability impractical for this model.

Performance on water differs from its optimal operation on land, where it achieves a maximum speed of 172 knots (318.54 kilometers per hour) and a rate of climb of 940 feet per minute (286.512 meters per minute). Theoretical water performance cannot match the efficiency demonstrated in its non-amphibious configuration.

Can the Cessna 337 operate in extreme weather conditions?

The Cessna 337 can operate in extreme weather conditions, but its performance depends on factors like wind intensity, icing conditions, and temperature range. The Cessna 337 handles temperatures from -20°C (-4°F) to 40°C (104°F), staying within operational limitations temperature limits. Pilots must avoid known icing conditions to provide weather resilience and environmental preparedness. The aircraft lacks advanced de-icing systems, impacting its de-icing systems coverage and resilience. General aviation guidelines suggest crosswinds up to 15 knots are manageable for proficient pilots, but Cessna 337 wind tolerance must be carefully observed.

The Cessna 337 lacks advanced de-icing systems, relying on external methods like wing and tail boot de-icers for ice protection. These methods provide limited de-icing systems efficiency, in severe icing conditions. Pilots must adhere to operational temperature limits, avoiding temperatures below -20°C (-4°F) where structural integrity is compromised. Cold weather procedures require removing frost and ice from control surfaces before flight to maintain weather resilience and structural integrity.

High winds and turbulence present difficulties within the Cessna 337 operational envelope. Crosswinds exceeding 15 knots demand heightened pilot proficiency during takeoff and landing operations. Structural resilience is tested under extreme weather conditions wind intensity, with gusts over 30 knots posing risks to safe flight operations. The push-pull engine configuration enhances Cessna 337 engine reliability but does not compensate for reduced stability in turbulent conditions. Operational guidelines dictate careful observation of wind tolerances to provide consistent Cessna 337 performance.

Heavy rain or storms reduce visibility and increase system vulnerabilities, impacting Cessna 337 avionics functionality. The aircraft operates effectively within its defined operational envelope but faces limitations during adverse weather events like thunderstorms. Reduced visibility requires reliance on instrument flight rules (IFR) capabilities, which expand the operational parameters despite limited avionics upgrades. Safety protocols mandate avoidance of severe weather conditions, including storms with high precipitation rates. Adherence to these protocols ensures compliance with Cessna 337 flight parameters and mitigates risks associated with extreme weather conditions icing conditions.

Manufacturer guidelines outline modifications necessary for safe operations in temperature extremes and high winds. Additional fuel tanks extend the Cessna 337 range up to 920 nautical miles, augmenting endurance during long flights in challenging environments. Pilots must understand extreme weather conditions, temperature range constraints and monitor operational limitations and wind tolerance to maintain safety. Weather resilience environmental preparedness depends on accurate forecasts, proper pre-flight checks, and adherence to defined limitations for optimal performance across varying conditions.

Is the Cessna 337 certified for instrument flight rules (IFR)?

Yes, the Cessna 337 is certified for instrument flight rules (IFR) when equipped with IFR-approved avionics and instrumentation. The Cessna 337 requires IFR-approved avionics, including navigation systems like GPS and VOR receivers. Communication equipment features VHF radios for clear transmissions. Flight instruments consist of altimeters, airspeed indicators, and heading indicators for precise control. Autopilot systems assist pilots during instrument procedures. Federal Aviation Administration regulations assure all systems meet strict safety standards.

Federal aviation administration (FAA) regulatory oversight mandates that all avionics systems meet specific standards for instrument flight rules (IFR) operations. The Cessna 337 model requires IFR-approved avionics equipment, including GPS technology, VOR receivers, and VHF radios. Pilots operating the aircraft must hold an IFR rating and complete recurrent training to maintain proficiency. Navigation systems integrate advanced tools like instrument landing system receivers, which support precision approaches during low-visibility conditions.

Cessna 337 avionics equipment includes primary flight displays or analog instruments essential for safe navigation. Altimeters, airspeed indicators, and heading indicators provide data for precise control during IFR flights. Autopilot systems assist pilots in managing difficult procedures, boosting operational efficiency. The Cessna 337 achieves a cruise airspeed of 165 knots, balancing speed and fuel efficiency while maintaining long-distance flights. Emergency procedures are clearly defined, for engine failure scenarios during instrument meteorological conditions.

Instrument flight rules (IFR) flight instrumentation ensures safe operation in adverse weather. The Cessna 337 type incorporates twin engines with a unique center-thrust configuration, combining a front tractor engine and rear pusher engine. This design influences flight dynamics and requires pilots to master takeoff and landing procedures under instrument conditions. Precision is key during Cessna 337 takeoff operations, especially when visibility is limited.

Is the Cessna 337 suitable for cargo operations?

The Cessna 337 is suitable for cargo operations depending on modifications, regulatory compliance, and operational efficiency. The Cessna 337 Skymaster features a unique push-pull engine configuration, providing redundancy and augmenting safety during cargo operations. Seating removal and structural reinforcement increase the aircraft's payload capacity to 720 kg (1587 pounds). Cargo conversions include adding a cargo door and optimizing the loading configuration for efficient handling. FAA Part 135 regulations govern commercial cargo operations, assuring compliance with strict safety standards. The aircraft’s range of up to 1,000 nautical miles supports regional logistics, making it suitable for niche cargo roles.

Modifications including seating removal, structural reinforcement, and cargo door installation optimize the Cessna 337 Skymaster for cargo operations. Structural modifications conversion adaptability ensures the airframe withstands stresses from heavier payloads. Loading configuration cargo door design facilitates efficient handling of goods, while cargo conversion interior modification transforms the cabin into a functional cargo area Cessna 337 door modifications increase accessibility, enabling seamless loading and unloading processes.

Reinforcement requirements address areas prone to wear and tear caused by heavier loads. Cessna 337 performance includes a range of up to 1,000 nautical miles, enabling regional logistics without frequent refueling stops. The service ceiling of around 20,000 feet (6,096 meters) enhances operational flexibility. Cargo operations logistics compatibility ensures the aircraft integrates efficiently into supply chains. Operational safety maintenance requirements dictate regular inspections and upkeep to prevent potential hazards.

Loading configuration accessibility focuses on streamlining cargo movement in and out of the aircraft. The push-pull engine configuration enhances redundancy, providing operational confidence during engine-out scenarios. Cessna 337 features include twin-engine reliability, which contributes to consistent performance in demanding roles.

Real-world evidence demonstrates the Cessna 337 Skymaster’s reliability and safety in cargo operations. Structural modifications reinforce the airframe, accommodating stresses from cargo duties. Payload capacity defines the physical limitations for transporting goods. The aircraft’s range and endurance align with regional market demands, making it suitable for niche logistics roles. Operational safety features incorporate advanced systems designed to protect crew and cargo.

Where to find Cessna 337 for sale?

To find a Cessna 337 for sale, explore online marketplaces like Trade-A-Plane and Controller.com, where listings detail various models and prices. Controller.com provides a range of listings, with prices spanning from $99,000 to $115,000. Barnstormers.com includes unique models like the 1975 Cessna 337P at $40,000 and the Reims Rocket P337 priced at $179,500. ASO.com offers detailed listings, featuring a 1979 Cessna P337H for $129,500. Aircraft dealerships: Western Skymasters LLC specialize in Cessna inventory, providing access to rare models. Partnering with dedicated forums connects buyers to network leads and user recommendations.

Western Skymasters LLC specializes in Cessna inventory, offering access to rare models like the Reims Rocket P337 through an extensive dealer network. Aircraft dealership locations span across regions including Florida and Utah, promoting availability of specific models. Trade-A-Plane, Controller.com, and ASO.com provide online aircraft marketplace listings with pricing ranges from $40,000 to over $179,500. Advanced search filters on these platforms allow narrowing results by model, year, price, and condition. Aviation classifieds advertisements and local listings on Barnstormers.com or Trade-A-Plane.com expand options for buyers seeking a Cessna 337G (1056.48 kg) or other variants. Aircraft broker expertise connects buyers to specific models, with brokers like Michael Rodriguez handling inquiries about Cessna aircraft. Auction sites occasionally feature used aircraft, though direct sales dominate the market. Used aircraft listings detail condition reports, engine hours, and maintenance logs for transparency for models like the 1979 Cessna P337H.

What is the price of a Cessna Skymaster?

The price of a Cessna Skymaster varies depending on the model year, condition, and specific features, with prices ranging from $99,000 to $115,000 for standard, well-maintained used models. A 1969 Cessna Turbo 337D Skymaster lists at $109,500 for a new listing. A 1968 Cessna Turbo 337C Skymaster is priced at $55,000 for a new listing. A 1967 Cessna 337B lacks detailed listings but aligns with late-1960s models, valued between $40,000 and $80,000 depending on condition. The low-end market price for a used Cessna 337 starts at $99,000. The high-end market price for a well-maintained used Cessna 337 reaches $115,000. Rare or upgraded models, for example, the RARE Reims Rocket P337, command prices exceeding $179,500. A used 1973 Cessna Skymaster 337 with 3,445 total time is available for $114,999. The average price for a pre-owned Cessna 337H remains around $100,000. Historical data shows the base purchase price for a new Cessna 337 Super Skymaster was $50,000. The Cessna 337 series aircraft begin at $429,500 for custom or extensively modified variants.