LZ Design d.o.o.

Office and workshop address:

LZ design d.o.o.,
Obrtniška 6G,
1370 Logatec,
tel:+386 59 948 898
mob tel:+386 41 449 194

Official address:

LZ design d.o.o.,
Brod 3D,
1370 Logatec,

Our websites:, main website of LZ design company, website dedicated to FES product

VAT number: SI81409052
Bank account: IBAN: SI56 2900 0005 5815 694 (UniCredit Banka Slovenija d.d.)

The inventors of the FES system are Luka Žnidaršič and his father Matija Žnidaršič. Both are experienced glider pilots, and engineers.

Luka Žnidaršič

From early youth Luka was passionate builder and designer of many free flying and RC models. At age 15 he started with gliding and soon he become the winner of his first nationals as the youngest competitor. Luka participated on many international gliding competitions, including four WGC. Winner or Euroglide 2018, and E-glide 2019. He achieved 1000km diploma, 3200 flying hours, on more than 40 different sailplane types. His favourite glider is Ventus 3 FES "LZ".

He completed secondary school of Electrical engineering, and graduated from Aeronautical engineering at the University of Ljubljana. He is also a specialist in CAD/CAM technologies and experienced in sailplane tuning and repairs.

Matija Žnidaršič

Luka's father Matija was also a model builder. He began gliding in 1970 but soon stopped due to family and lack of time. In 1988 his oldest daughter Nina started gliding. He couldn't resist to stay on the ground anymore. The following year he bought an old Open Cirrus and was back in the sport! He is experienced cross country pilot, and gliding instructor with about 3000 gliding hours.

He completed secondary school of Electrical engineering and later graduated from Mechanical engineering at the University of Ljubljana. He is experienced plastic injection mold maker. Electric motors are his passion, so FES brushless motor is mainly his development. He is flying usually with his Duo Discus "ZM"