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Sling Unveils Details of Planned MOSAIC Light Twin Aircraft

Sling Unveils Details of Planned MOSAIC Light Twin Aircraft
Sling Aircraft, the South African manufacturer known for its innovative light aircraft, has revealed initial technical details of its forthcoming twin-engine piston model designed to comply with the Federal Aviation Administration’s (FAA) new Modernization of Special Airworthiness Certification (MOSAIC) standards. This development marks a significant expansion of Sling’s product range, with plans to offer both a four-seat light-sport aircraft (LSA) variant and a six-seat Experimental Amateur-Built (EA-B) configuration.
Design and Technical Specifications
The new aircraft will be powered by a pair of turbocharged Rotax 916 iS engines, each capable of delivering 160 horsepower for takeoff and 137 horsepower during continuous operation. These engines, paired with constant-speed propellers, are designed to run on both 100LL avgas and unleaded automotive fuel, maintaining full takeoff power up to an altitude of 15,000 feet. The cockpit will be equipped with Garmin AXIS 11.6-inch displays, and the aircraft will incorporate a whole-airplane parachute system as a standard safety feature.
Conceptual renderings released by Sling depict a conventional low-wing design featuring wing-mounted engines and retractable tricycle landing gear. The cabin extends behind the wing, suggesting a spacious interior layout. However, Sling has emphasized that these images are preliminary and may not fully represent the final production model. Critical details such as exact performance metrics, dimensions, pricing, and the timeline for the first flight and customer deliveries have yet to be disclosed.
Context Within Sling’s Product Line and the MOSAIC Framework
Sling’s current portfolio includes the two-seat Sling LSA and Sling 2, alongside the four-seat Sling TSi and Sling High Wing models, both of which already utilize the Rotax 916 iS engine. At the 2026 EAA AirVenture Oshkosh event, Sling also introduced the Sling 2M, a MOSAIC-compliant version of its two-seat trainer aircraft.
The FAA’s MOSAIC rule change represents a pivotal shift in light-sport aircraft certification by removing the previous limitation that restricted LSAs to a single reciprocating engine. This regulatory update now permits manufacturers to develop multi-engine LSA models with up to four seats. The FAA specifically highlighted twin-engine airplanes equipped with feathering propellers as a configuration enabled by the new standards. Despite this, sport pilots will remain restricted to single-engine privileges and may carry only one passenger. Operating the Sling twin with more than one passenger will require a pilot to hold a multiengine rating and at least a private pilot certificate.
Greg Blyth, Sling Aircraft’s representative for Business Development, Distribution, and Marketing, clarified that the initial announcement was intended to confirm ongoing development rather than provide comprehensive specifications. The company’s strategy involves offering the four-seat version under the LSA category while providing a six-seat option for EA-B builders.
Challenges and Market Implications
Adapting to the MOSAIC certification requirements presents notable challenges for Sling, particularly in managing production schedules to meet a targeted delivery date in August 2026. The MOSAIC Light Twin is anticipated to generate considerable interest among flight schools and training institutions, given the increased affordability and accessibility enabled by the new regulations. This development may prompt competitors to update their own product lines to maintain relevance in the evolving light-sport aircraft market.
Sling has yet to specify whether the twin-engine model will employ the ASTM-compliant or separately certified version of the Rotax 916 iS engine. As the project advances, further information regarding performance, pricing, and availability is expected to be released.

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