The LAK 17B FES is a single seat high performance EASA certified sailplane for the FAI 18/15m class, designed according to CS-22 'U' specification. The sailplane is constructed from hybrid composite materials such as Kevlar, carbon and glass fibre).
The wing spar is made of GRAPHLITE SM315 carbon rods bonded into a double T section. The airbrakes are located on the upper wing surface only.
The retractable landing gear has a 5005 6PR ply tyre and shock absorber and the hydraulic main wheel brake is actuated by the air brake handle. The rudder pedals are adjustable in flight, and all the controls, connect automatically.
The wings incorporate fork-type spar tips, joined with two pins. The T-tail (fixed stabilizer with elevator) of the LAK 17B FES provides stable and responsive pitch characteristics. The elevator hooks up automatically during assembly.
The cockpit is of monocoque construction. The manually controlled seat back and an adjustable head rest together with optimally arranged controls offer notable comfort for long flights.
The one piece Weiss canopy hinges forward and on the left side there is a sliding window with ventilation scoop. The instrument panel lifts up together with the canopy.