Aircraft Design & Certification

Type Certification

The Lightwing AC4 is the first EASA certified CS-LSA airplane with a Rotax 912iS engine. Low fuel consumption, light weight and low noise as well as comfortable seating; sufficient payload, and modern avionics - it is an airplane you will like to fly just for fun or enroute.

The Swiss production organisation, Lightwing AG (POA), delivers highest quality and uses mainly local suppliers.

If you are a user/operator of an AC4 and you want to report an occurance, please use our contact form with the subject "Lightwing AC4 Occurance".


  • Two seater side-by-side
  • high wing configuration
  • MTOW 600 kg, payload 240 kg
  • 100 hp fuel injection Rotax 912 iS
Stall speed FLAP DWN   VS0   76 km/h
Stall speed Clean  VS1  81 km/h
Flap Speed  VF 152 km/h
Manoeuvring Speed  VA 163 km/h
Cruise Speed  VC 163 km/h
Never Exceed Speed  VNE 196 km/h


  • Consumption 14l/h
  • Covering on wing and empennage
  • Carbon fuselage fairing and wheel shoes
  • Carbon fuel tank (100 liter)
  • Carbon body-contoured seat
  • Dynon Skyview
  • Becker radio und transponder
  • Stork Flight digital EMU 912iS


If you are interested or you have any question about this product please use the contact form with the subject "Lightwing AC4". 

Pictures Lightwing AC4

From Concept

to Certification.

Contact us!