Sonerai II

Overview

The Monnett Sonerai II is a high-performance, mid-wing, tandem two-seat experimental aircraft originally derived from a Formula V racer. Designed by John Monnett, it is famous for its use of modified Volkswagen automotive engines, offering a high-speed, sporty flying experience on a budget. Its wings are designed to fold back against the fuselage, allowing for easy towing and storage in a standard garage.

Key Features for GA Buyers

• Folding Wings: Significantly reduces ownership costs by allowing garage storage and eliminating hangar fees.
• Operational Economy: Consumes only 4-5 gallons of fuel per hour using a VW-based engine, making it one of the most affordable cross-country cruisers.
• Sporty Handling: Exceptional roll rates and responsiveness; stressed for limited aerobatics when flown solo.
• Versatility: Available in mid-wing or low-wing (II-L) configurations, and as a taildragger or tricycle gear (II-LT).

Trade-offs

• Payload Constraints: With two adults and fuel, the aircraft often nears its gross weight limits; baggage space is very limited.
• Cockpit Comfort: The tandem cockpit is narrow (approx. 23 inches), which may be cramped for larger pilots or long trips.
• Maintenance: As a plans-built experimental aircraft, build quality varies significantly between units, requiring thorough pre-buy inspections of the 4130 steel frame and fabric covering.