Vans RV-9 and RV-9A Standard Aircraft Equipment List

The Van’s RV-4 is the tailwheel version of this tandem two-seat kit aircraft, staying true to Van’s original performance-oriented design. The RV-4A refers to a builder-modified tricycle-gear variant, created through aftermarket conversions, as Van’s Aircraft never produced an official RV-4A kit. Both versions share the same fuselage and wing structure, but the gear layout significantly impacts ground handling and pilot preference. The tailwheel RV-4 is favored by pilots with taildragger experience, while the tricycle version may offer a gentler landing profile for some builders. Regardless of gear, both deliver the same well-balanced flight characteristics in the air.

The Van’s RV-4 series offers a rare combination of tandem seating, cross-country range, and efficient performance in a compact, all-metal airframe. It balances light handling with real travel capability, offering space for two people, baggage, and fuel in a design that still performs like a sport aircraft. The RV-4 is also one of the most respected aircraft in the experimental category, with a long history of successful builds and reliable flight behavior. Its low stall speed, sleek canopy, and builder-friendly construction continue to attract pilots looking for a hands-on flying experience. It delivers capability without complexity.

The RV-4 series benefits from stable flight characteristics, low stall speeds, and excellent visibility from the front seat. Its strong all-metal airframe is known for durability and predictability, even in challenging conditions. The aircraft’s responsive controls make it easy to stay ahead of the flight path, while its wide center-of-gravity range allows for flexible loading. Builders often equip their RV-4s with modern avionics like ADS-B, engine monitors, and angle-of-attack indicators for added situational awareness. Safety in the RV-4 comes from both good design and the builder’s attention to detail.

The RV-4 series is known for strong cruise speeds, efficient fuel burn, and excellent climb rates for its size. Typical cruise speeds range from 160 to 175 knots (184 to 201 mph, or 296 to 323 km/h), depending on the engine, propeller, and build configuration. The aircraft’s light weight and aerodynamic shape help it outperform many certified two-seaters in terms of speed and range. Climb rates are generally well over 1,500 feet per minute, and the controls remain smooth and responsive in all phases of flight. It offers real performance without requiring a large engine or complex systems.

As an experimental aircraft, the Van’s RV-4 series is not subject to the same certification and inspection requirements as aircraft with standard airworthiness certificates, according to FAR Part 43. It requires a condition inspection every 12 months, which covers the same areas as a standard annual and 100-hour inspection but is performed by an A&P mechanic or the original builder holding a Repairman Certificate. Routine maintenance like oil changes is typically performed every 50 hours, and many owners voluntarily follow 100-hour intervals to ensure continued airworthiness. While anyone may legally perform maintenance on an experimental aircraft, proper documentation, recordkeeping, and builder care remain essential. Van’s service bulletins are not mandatory but are widely followed as best practice.

The RV-4 series is highly customizable, which is a core part of its appeal for homebuilders. Builders choose their preferred engine, propeller, avionics, seating arrangement, and interior finishes to match mission needs. Some opt for lightweight, VFR-only builds, while others equip their aircraft for IFR cross-country flying with glass panels and autopilot. Engine choices usually range from 150 to 180-horsepower, and both fixed-pitch and constant-speed propellers are commonly used. The kit’s simplicity allows for creativity without sacrificing reliability.

The RV-4 series performs best in VFR conditions with moderate winds, offering crisp control and predictable behavior. Its tandem seating and light airframe mean it can be more sensitive to turbulence compared to heavier aircraft, but it remains stable and controllable throughout typical general aviation weather. Tailwheel models require careful handling in gusty conditions or on narrow runways, especially for less experienced pilots. Tricycle gear RV-4A builds may reduce ground-handling challenges in crosswinds. Regardless of configuration, the RV-4 series flies confidently when operated within its limits.

The RV-4 series typically has a range between 600 and 750 nautical miles (1,111 to 1,389 km), depending on engine, propeller, and cruise settings. With a fuel capacity of around 36 gallons (136 liters) and fuel burns of 7 to 9 gallons (26 to 34 liters) per hour, it offers practical endurance for regional or cross-country travel. Pilots often plan for 3.5- to 4.5-hour legs with reserve fuel on board. The RV-4’s range rivals many certified touring aircraft while offering lower operating costs. It is well-suited for real-world missions beyond the local pattern.

The Van’s RV-4 series is a two-seat aircraft with tandem seating, meaning one seat in front and one directly behind. The pilot typically flies from the front, and the rear seat may have full or partial controls, depending on the build. It comfortably carries two adults for local or cross-country flights, though baggage space and rear seat legroom may vary. Builders can tailor seat ergonomics and upholstery to enhance comfort. It’s a capable two-place design for solo or shared flights.

As a kit aircraft, the Van’s RV-4 series allows builders to select their preferred engine within a recommended range. Most use Lycoming O-320 or O-360 series engines producing between 150 and 180-horsepower, but other experimental engines may be installed depending on builder goals. Propeller selection is equally flexible, with both fixed-pitch and constant-speed options supported by the airframe. The chosen engine has a direct impact on cruise speed, climb rate, and fuel burn. This flexibility is a major reason the RV-4 series remains so popular.

The useful load of the RV-4 series typically ranges from 650 to 800 lb (295 to 363 kg), depending on installed equipment and engine choice. With full fuel, which weighs approximately 216 lb (98 kg), there is still capacity for two adults and some baggage. The wide center-of-gravity range allows for flexible loading, and careful preflight planning helps ensure safe operation. Builders focused on cross-country travel often prioritize higher useful load during the build process. It provides enough payload for real missions without sacrificing flight performance.

Yes, the RV-4 series is capable of operating from short, grass, or lightly maintained strips, depending on pilot proficiency and field conditions. Takeoff and landing distances often fall under 1,000 ft (305 m), especially with a lightly loaded aircraft and proper technique. Tailwheel models may require more experience on turf or uneven surfaces, while builder-modified tricycle gear variants may be easier to manage. The aircraft’s light weight, strong brakes, and low stall speed make it very capable on smaller runways. Many RV-4s are operated from private fields and rural airports.

The RV-4 series cabin is compact but offers adequate comfort for most average-sized pilots and passengers. The front seat provides excellent visibility and access to the controls, while the rear seat’s space depends on builder customization and panel design. The bubble canopy creates a spacious feel in flight and offers excellent forward and side visibility. Though narrower than side-by-side aircraft, the tandem layout helps with centerline visibility and drag reduction. Comfort improves significantly when builders personalize seats, ventilation, and insulation.

Avionics in the RV-4 series range from basic analog panels to fully integrated glass cockpits, depending on the builder’s preference and mission. Many RV-4s are equipped with GPS, ADS-B, digital engine monitoring, and autopilot functions for extended travel. Tandem seating limits panel space, encouraging efficient layout and minimalist design. Compact EFIS units like the Garmin G5 or Dynon D3 are popular in the RV community. Builders can tailor their avionics to match IFR readiness, VFR simplicity, or anything in between.

The RV-4 series includes a baggage compartment behind the rear seat, often rated for up to 75 lb (34 kg), depending on center-of-gravity limits. It’s suitable for duffels, tools, soft cases, or overnight travel gear. Builders often install tie-downs, cargo nets, or lighting to improve usability. While not spacious, it accommodates enough for weekend trips or regional hops. As always, weight and balance must be verified during preflight planning.