Koos Liebenberg

When the need for training pilot students became clear in Robertson, Koos Liebenberg, a retired headmaster from Tulbagh High School, founded Jaffie (SACAA/1201/ATO).  Oom Koos served for 28 years in the SAAF as a citizen pilot on Harvards and Impalas and the teaching of flight skills made it a natural fit.

Johann Bruwer

Johann is Head of Flight X Projects and Business Development at Incomar in Robertson. He’s played a key role in modernising flight operations, introducing new technologies and smarter ways of working. With a career spanning from the South African Air Force to senior roles in Comair, he brings deep experience in both flying and management. Since joining Incomar in 2020, he’s built a strong safety culture and helped establish the company’s Aviation Training and Maintenance Organisations. A passionate mentor, Johann continues to inspire and train upcoming pilots as a Flight Instructor Grade 1 and Designate Flight examinator.

Madelein de Kock

Madelein is a dedicated Grade III flight instructor and Commercial Pilot Licence holder with 500 hours of flight experience. She began her aviation journey at Jaffie Aviation in 2018, where she completed her PPL and went on to obtain a single‑engine VFR CPL in 2022. In 2023, she expanded her skills by completing her Instrument Rating in Gauteng and returned to Jaffie in 2024 to obtain her Instructor Rating. She’s currently employed as a flight instructor at where she provides ab initio and advanced training to student pilots.

In this role, she is involved in primary training and refresher training, student progress monitoring and pre‑flight and post‑flight briefings. Professionalism and safety are at the core of her flying. She maintains a clean safety record and actively promotes a culture of disciplined flying, thorough preparation, and continuous learning. Madelein regularly participate in safety meetings and standardisation activities and contributes to developing training material and briefing guides to support consistent, high‑quality instruction.