American Legend AL11

American Legend AL11

The American Legend AL11 reimagines the classic tandem-seat high-wing sport aircraft with modern materials, upgraded systems, and enhanced utility. Introduced in 2017 by Legend Aircraft Company, the AL11 carries forward the spirit of the Aeronca Champ lineage while delivering contemporary performance and comfort. Pilots seeking backcountry versatility, vintage aesthetics, and reliable power find the AL11 equally adept on grass strips, paved runways, and soft-field environments.

Combining a welded 4130 chromoly steel fuselage, fabric-covered wings, and a potent Lycoming engine, the AL11 strikes a balance between nostalgia and capability. Its generous cockpit dimensions, straightforward controls, and low-speed handling make it a natural choice for tailwheel training, sport flying, and photographic missions.

Design and Development

Origins and Vision

Legend Aircraft Company conceived the AL11 to fill a gap in the light-sport and experimental market: an aircraft that echoes the simplicity of 1940s taildraggers, yet embraces modern engineering. Drawing on customer feedback in bush- and sport-flying communities, designers prioritized:

• Increased useful load for two occupants and gear
• Improved climb and cruise performance
• Simplified maintenance procedures

Throughout the development process, extensive prototype testing validated aerodynamic refinements and structural upgrades in real-world bush flying.

Airframe Configuration

The AL11 adopts a strut-braced, high-wing monoplane layout. Key structural features include:

• Fuselage: Welded 4130 chromoly steel tubing for excellent crashworthiness
• Wings: Two-piece aluminum spars with fabric covering and sealed rib construction
• Tail: Steel-tube elevator and rudder assemblies with mass-balanced control surfaces

Removable panels in the upper wing center section enable easy rigging inspections, while quick-release wing struts facilitate transport and storage.

Structural Details

Fuselage and Cabin

The cabin occupies a deep-chord center section, providing headroom and shoulder space for pilots up to 1.9 m tall. Floorbuck panels and baggage area are built from aluminum sheet stiffened with tubular frames, supporting up to 45 kg of gear aft of the rear seat. A lightweight windshield and generous side windows ensure excellent all-around visibility.

Plexiglas doors with friction latches hinge forward, granting unobstructed cockpit access. Seats feature four-point harnesses, and the adjustable rudder pedals accommodate a wide range of pilot leg lengths. Optional heater ducts channel warmed air from the cabin heater through firewall-mounted exhaust recuperators.

Wings and Control Surfaces

The AL11’s wing employs a brand-new airfoil designed for enhanced lift at low Reynolds numbers. Features include:

• 2.95 m chord at the root tapering to 2.3 m at the tip
• Flaperons spanning 75 % of the trailing edge for combined aileron and flap functionality
• Vortex generators ahead of the flaperons to improve low-speed control
• Interchangeable wingtips permitting either extended-span or clipped-tip configurations

Control linkages use rigid push-pull tubes in the center section, transitioning to streamlined cables in the outboard panels for weight savings.

Powerplant and Propulsion

Engine Configuration

At the heart of the AL11 sits a Lycoming O-320-A2B four-cylinder, horizontally opposed engine producing 160 hp at 2,700 rpm. This time-tested powerplant offers:

• Proven reliability with TBO of 2,000 hours
• Dual magneto ignition for redundancy
• Carbureted and fuel-injected options to suit climate and altitude requirements

FADEC-compatible electronic ignition and throttle controls are available as a factory option, delivering smoother starts and optimized fuel consumption.

Propeller System

Standard AL11s rotate a Sensenich two-blade, fixed-pitch wooden propeller with a diameter of 1.83 m. For pilots seeking enhanced climb or cruise performance, an optional Warp Drive three-blade composite propeller can be fitted. Both choices feature:

• Ground-adjustable pitch settings
• NP range up to 2,700 rpm
• Lightweight hubs designed to dampen vibration

A spinner fairing reduces aerodynamic drag and improves cockpit noise levels.

Landing Gear and Brakes

Taildragger Configuration

The AL11 preserves the classic tailwheel arrangement, favored for its simplicity and ruggedness. Main landing gear consist of tapered spring-steel legs, providing shock absorption without hydraulic complexity. The steerable tailwheel attaches via a spring-steel leaf, enabling tight turns on confined taxiways.

Brake System

Hydraulically actuated disc brakes on the main wheels offer positive stopping power, even on wet grass. Brake lines route through stainless-steel tubing to minimize corrosion. A hand-operated parking brake locks the discs when parked on slopes or soft ground.

Cockpit and Avionics

Instrument Panel Layout

Pilots encounter a thoughtfully arranged panel, balancing vintage good looks with modern functionality. Standard instrumentation includes:

• Airspeed indicator, altimeter, and vertical-speed indicator
• Turn coordinator and magnetic compass
• Tachometer, oil pressure, and cylinder-head-temperature gauges
• Fuel quantity gauges for each wing tank

Optional glass cockpit packages integrate dual 7- or 10-inch displays supporting navigation, engine monitoring, and synthetic vision.

Communication and Navigation

Factory-installed avionics bundles include:

• VHF COM/NAV transceiver with ILS capability
• GPS with WAAS approach certification
• ADS-B Out transponder meeting 2020 mandates
• 406 MHz ELT with automatic crash sensing

A removable center-panel allows easy upgrades to handheld radios or experimental devices.

Performance Characteristics

Speed and Climb

The AL11’s aerodynamic efficiency and powerplant combine for robust performance:

• Maximum cruise speed: 210 km/h at 3,000 m
• Economy cruise (65 % power): 185 km/h
• Rate of climb at sea level: 5.5 m/s
• Service ceiling: 4,900 m

The optional three-blade propeller enhances climb rate by up to 10 % under standard conditions.

Short-Field Operations

With flaperons fully extended to 30 degrees and a light load, the AL11 demonstrates:

• Takeoff distance over 15 m obstacle: 110 m
• Landing distance from 15 m obstacle: 95 m
• Stall speed (flaps down): 50 km/h

These figures make the AL11 well suited for backcountry strips, remote lodges, and unimproved airfields.

Range and Endurance

Two fuel tanks integrated into the wings hold a combined 113 L of avgas. At economy cruise settings, fuel burn of 28 L/h yields:

• Maximum range with 30-minute reserve: 1,000 km
• Endurance: 4 hours
• Ferry range with auxiliary bladder tanks: 1,250 km

Standard fuel system design includes a center-mounted selector and a reserve position.

Operational Roles and Use Cases

Backcountry and Bush Flying

Bush pilots value the AL11’s low stall speed, generous payload, and rugged landing gear. Cargo baskets, cargo pods, and spray booms can be installed on wing hardpoints to support aerial application, pipeline patrol, or wildlife census missions.

Flight Training and Sport Flying

Flight schools adopt the AL11 for tailwheel endorsements and introductory aerobatics. Its responsive controls, coupled with predictable stall breakup, instill confidence in new pilots. Transition courses emphasize ground handling, crosswind operations, and soft-field techniques.

Recreational Touring

Private owners appreciate the AL11’s retro styling and modern comforts. Heated cabin options, USB power outlets, and deluxe upholstery make longer cross-country flights enjoyable. Removable doors allow open-cockpit freedom on scenic mountain or coastal routes.

Maintenance and Support

Ease of Inspection

The AL11’s fabric covering can be inspected and repaired in the field using standard aircraft fabric repair kits. Engine cowlings hinge open without tools, granting full access to spark plugs, oil filter, and accessory drives. Wing root inspection panels simplify rigging checks and control-cable tension adjustments.

Parts and Service Network

Legend Aircraft maintains a global supply chain for airframe components, Lycoming parts, and avionics modules. Factory-authorized service centers provide annual inspections, major repairs, and avionics upgrades. Online technical manuals and video tutorials assist owner-builders and maintenance shops alike.

Technical Specifications Summary

Conclusion

The American Legend AL11 redefines what a modern taildragger can achieve, marrying vintage charm with contemporary performance and support. Its robust construction, potent powerplant, and adaptable design suit a wide spectrum of missions—from backcountry exploration to basic aerobatic training. With a global network of parts and service, pilots can enjoy peace of mind alongside the pure joy of open-cockpit flying.