Made with passion
for flight


The LAK-17C FES experience summary

Simple and safe. Does not matter where you fly, the new LAK-17C FES will get you airborne or get you home. Designed for the new FAI 15 m and 18 m classes.

50 years of sailplane design experience.

Modern composite materials, tested manufacturing techniques and, just in case, an option for an engine. The FES propulsion system has no known reports of in-flight failures, allowing you to stay confident in areas of no-lift . And yes, it is still a glider.

No sweat from rigging to landing. All controls hook up automatically. We off er to choose one of 4 our standard instrument panels. It is possible to get a self-designed instrument panel as well. Pedals and seat-back are adjustable.

TIn this highly-maneuverable glider fits 160 liters of ballast in the wings and 8 liters of ballast in the tail. The FES engine and batteries are easy to remove in case a pilot wants to fly pure glider in competition. In this case possible tp have extra ballast the fuselage. With the propeller removed, a clean and sleek nose cone is mounted on the front.

Technical data

15 M
18 M
Max TOW, kg
Wing area
Never exceed speed, km/h
G limits
Engine type
Overall propulsion system weight
  • BLDC brushless synchronous permanent magnet motor with electronically controlled commutation on system 3 phase
  • 20 kW continuous power
  • length: 100 mm
  • diameter: 180 mm
  • weight: only 7 kg
  • carbon fibre foldable propeller
  • blades shaped to the front surface of the fuselage
  • diameter: 1 m
  • automatically opens when motor starts
  • 32 lithium polymer cells
  • Average capacity of each cell: 41 Ah
  • 2 battery boxes, each weighting 17.6 kg
  • life expectancy: more than 10 years
  • battery packs supply power for all instrumentation on board
  • charger: Special Li-Po with active BMS
  • charging time:
  • 3 hours each box, if fully discharged with standard 1000 W charger
  • 1 hour each pack with op tional 3000 W charger