Flightstar
Original mid-1980s single seat ultralight with an empty weight of 250 lb (113 kg), powered by the 26 hp (19 kW) Rotax 277 engine
Flightstar Formula
Improved single seat version with complete fairing and an empty weight of 320 lb (145 kg).
First flown in 1987 Powered by the 42 hp (31 kW) Rotax 447 or 50 hp (37 kW) Rotax 503 engine
Flightstar Spyder
Further refined single seat version first flown in 1993.
Partial or complete fairing and an empty weight of 280 lb (127 kg) with the 42 hp (31 kW) Rotax 447.
Can be operated in the US ultralight vehicle category if equipped with a lighter single-cylinder engine
Flightstar Loadstar
Fuselage, wings and tail of the Flightstar II with just a single seat fitted, intended for use on floats or to tow hang gliders.
Empty weight of 340 lb (154 kg) with the 50 hp (37 kW) Rotax 503.

Flightstar e-Spyder
Electric aircraft development of the Spyder in conjunction with Yuneec International of China.
Equipped with a Yuneec Power Drive 20 20 kW (27 hp) electric motor and two 28 lb (13 kg) lithium-polymer battery packs which provide a 40 minute endurance.
First flown in July 2009.
Qualifies as a US single seat ultralight with an empty weight of 253 lb (115 kg).
In June 2013 it was announced that the aircraft would be produced, marketed and supported by GreenWing International.
In July 2013 the aircraft received German DULV certification, to become the first electric-powered aircraft to be certified by a national authority.
By 2014 GreenWing was out of business.
Flightstar
Original mid-1980s single seat ultralight with an empty weight of 250 lb (113 kg), powered by the 26 hp (19 kW) Rotax 277 engine
Flightstar Formula
Improved single seat version with complete fairing and an empty weight of 320 lb (145 kg). First flown in 1987 Powered by the 42 hp (31 kW) Rotax 447 or 50 hp (37 kW) Rotax 503 engine
Flightstar Spyder
Further refined single seat version first flown in 1993. Partial or complete fairing and an empty weight of 280 lb (127 kg) with the 42 hp (31 kW) Rotax 447. Can be operated in the US ultralight vehicle category if equipped with a lighter single-cylinder engine
Flightstar Loadstar
Fuselage, wings and tail of the Flightstar II with just a single seat fitted, intended for use on floats or to tow hang gliders. Empty weight of 340 lb (154 kg) with the 50 hp (37 kW) Rotax 503.
Flightstar e-Spyder
Electric aircraft development of the Spyder in conjunction with Yuneec International of China. Equipped with a Yuneec Power Drive 20 20 kW (27 hp) electric motor and two 28 lb (13 kg) lithium-polymer battery packs which provide a 40 minute endurance. First flown in July 2009. Qualifies as a US single seat ultralight with an empty weight of 253 lb (115 kg). In June 2013 it was announced that the aircraft would be produced, marketed and supported by GreenWing International. In July 2013 the aircraft received German DULV certification, to become the first electric-powered aircraft to be certified by a national authority. By 2014 GreenWing was out of business.
Flightstar