In the early 1990s, the TwinStar MK II was introduced as a significant upgrade over the original TwinStar design.
This twin-engine ultralight aircraft quickly gained attention for its unique configuration, placing engines on each wing rather than a single pusher setup. This layout not only provided improved thrust and better weight distribution but also allowed for enhanced control during flight, especially in crosswind conditions.
Specification
Empty weight:
441 lbs (200 kg)
MTOW:
992 lbs (450 kg)
Stall speed:
27 kts (31 mph) (50 kph)
Cruise speed:
70 kts (81 mph) (130 kph)
VNE:
92 kts (106 mph) (170 kph)
Climb:
984 ft/min (5 m/s)
Take-off distance:
164 ft (50 m)
Landing distance:
131 ft (40 m)
Engine:
Rotax 503
Fuel consumption:
4 GPH (15.1 LPH)
Introduction
The TwinStar MK II made an immediate impact in the ultralight market, thanks to its twin-engine configuration and refined structural updates.
Key improvements included the dual-engine mounts on the wings, providing redundancy and safety, along with improved performance during takeoff and climb. The aircraft featured a redesigned cockpit area with a low-profile windshield, optional full enclosure, and upgraded spring landing gear for smoother ground handling.
Build Time: Approx. 400 hrs.
Factory Quick Build Option (by Custom Air): Approx. 200 hrs.
Images Of TwinStar MK II
FROM THE MANUFACTURER: Lockwood Aircraft
The TwinStar MK II is an easy-to-build twin-engine ultralight aircraft designed for pilots who want added power, safety, and confidence during flight. Built with performance and dependability in mind, the MK II often comes equipped with twin Rotax 447 or 503 engines, offering outstanding climb rates and the reassurance of redundancy in the event of engine failure. With a gross weight of 950 lbs. and a low stall speed, the aircraft comfortably qualifies as an experimental light sport aircraft — making it ideal for Sport Pilot certification.
The standard engine setup includes two Rotax 447s with gear reduction drives, each turning a 60-inch fixed-pitch propeller. This powerful combination allows the MK II to achieve impressive climb performance and a cruise speed of up to 75 mph, all while maintaining excellent fuel efficiency.
HIGH PERFORMANCE
The TwinStar MK II is built for serious performance. Its dual-engine layout gives it a unique edge in both takeoff and climb, making it suitable for short fields and rough runways. The light airframe and wide wing area contribute to an excellent power-to-weight ratio, which translates to strong acceleration and responsive flight characteristics. With both propellers pulling in tandem, the aircraft launches off the ground swiftly and climbs with ease, even at full load.
This level of performance opens the door for safe flying in variable conditions — something solo-engine ultralights often can’t provide. The aircraft also performs reliably in warmer altitudes and slight crosswinds, adding to its overall operational versatility.
STURDY CONSTRUCTION
The TwinStar MK II features a rugged and lightweight frame composed of aircraft-grade aluminum and high-strength steel in all key load-bearing areas. The fuselage cage is factory-welded using 4130 chromoly steel, ensuring durability and crash resistance.
Its wings use a robust 5″ aluminum spar with precision-built ribs and are covered with UV-resistant aircraft fabric. These construction choices offer structural strength without compromising weight — a crucial factor in ultralight performance. Every component is made with longevity and safety in mind, reflecting the manufacturer’s attention to detail.
SMOOTH & RESPONSIVE HANDLING
Like all Lockwood designs, the TwinStar MK II uses traditional cable and push-pull tube controls, delivering a confident, mechanical feedback that pilots appreciate. The aircraft handles responsively at all speeds, with powerful full-span ailerons that allow for smooth turns and excellent control even at low speeds or during stalls.
Despite being a twin-engine aircraft, the MK II is surprisingly nimble. Minimal rudder input is required for coordinated flight, and its predictable behavior in the air makes it accessible to both seasoned and transitioning pilots. Optional toe or heel brakes add to the aircraft’s maneuverability on the ground, enabling tight turns and controlled taxiing.
EXCEPTIONAL VISIBILITY
With its open cockpit design and pusher-style engine configuration, the TwinStar MK II provides outstanding visibility in every direction. Pilots enjoy a panoramic 360-degree view, ideal for sightseeing flights, aerial photography, or simply enjoying the open sky.
Optional full enclosures are available for colder climates and can be easily installed or removed depending on the season. With the engine and exhaust positioned behind the pilot, cabin noise is reduced and visibility is unobstructed — making every flight more enjoyable.
FOLDING WINGS & TRANSPORTABILITY
One of the most appreciated features of the TwinStar MK II is its folding wing and tail system. Designed for convenience, the wings fold back along the fuselage, and the tail folds upward in under 20 minutes — all without the need for a hangar. This feature allows owners to easily transport or store the aircraft in standard garages or trailers.
Owners also have the option to install a second seat (tandem style) after initial construction, offering flexibility for those who plan to fly with a passenger in the future.
