AOPA Namibia
Board of Directors
Meet the dedicated aviation champions who volunteer their time to lead AOPA Namibia in order to protect, promote, and grow aviation across Namibia.
President: Riaan Burger
Riaan Burger has been a private pilot since 1990 and an aircraft owner since 1995. He followed a career in the aviation and mining industries and is currently the CEO of Namdeb Diamond Corporation. A born Namibian, he is passionate about the country, its people and its natural beauty that offer incredible flying opportunities.
Vice President: Christian "Jochie" Sell
Christian "Jochie" Sell started his career as an air traffic controller in 1983. After a short stint as radar controller in South Africa, he accepted the post of Chief ATC at the Directorate of Civil Aviation, Namibia in 1991. Since then, he's served on various technical committees, not only in Namibia, but also within the SADC Region.
In 2008 Jochie accepted a position as ANS Project Manager in the UAE until his retirement in 2021. This did not stop him from being part of a project team in Qatar in 2022. He is presently managing a project for the total upgrade of Air Navigation Systems in Afghanistan.
CEO: Matt Totten Jr
Matt Totten Jr is a geologist, marketing specialist and life-long aviation enthusiast. A native-son of General Aviation's light-aircraft capital of the world – Wichita, Kansas – Matt grew up on the flight line with an unwavering passion to protect the right to fly.
He earned his PPL in 2005 and bought into his first aircraft partnership (a Citabria) in 2012. Matt is a longtime member of EAA AOPA USA and has been a proud member of AOPA Namibia since 2021. Though his logbook includes all the usual Cessna and Piper suspects, his real passion is for flying taildraggers.
A resident of Namibia since 2019, Matt completed his Namibian PPL conversion in 2023. He's often spotted exploring the country’s vast skies in a distinctive zebra-striped Skyreach Bushcat, combining his love of aviation with the adventure of exploring Namibia’s remarkable backcountry.
Arnulf Winsauer
Arnulf Winsauer was born and raised in Namibia, where his passion for aviation began early. He earned his PPL in 1977 and went on to have a professional flying career spanning more than four decades. From 1981 until his retirement in 2025, Arnulf flew professionally, including 31 years as an airline pilot.
Today, Arnulf explores Namibia in his Savannah LSA, enjoying the freedom of light sport aviation to take in the country’s vast and breathtaking landscapes from the skies.
Juline Boois
Juline Boois has over 22 years of aviation industry experience as both an ex-Airline Pilot, and now Senior Corporate Pilot captaining both fixed and rotor-wing aircraft.
Her dedication to growing Namibian aviation is rivaled only by her commitment to aviation safety, expert aeronautical performance and stakeholder satisfaction.
Jacqueline Stiemert
Jacqueline Stiemert is an aviation professional with more than 23 years of experience across operational aviation, regulatory oversight, and aviation safety management in Africa and the Middle East. A third-generation member of an aviation family, she began her career at 17 and later qualified as an Air Traffic Controller, becoming the youngest controller in Namibia at the time to obtain an Aerodrome Control Rating.
She later served as a Senior Air Traffic Services Inspector at the Namibia Civil Aviation Authority, overseeing Air Navigation Services providers and Namibia’s compliance with international aviation standards under the International Civil Aviation Organization safety oversight framework.
Jacqueline currently works in the Middle East in Air Traffic Compliance and serves on the board of AOPA Namibia, supporting initiatives that strengthen aviation safety, regulatory engagement, and the sustainable growth of aviation in Namibia.
Alwyn Biermann
About Alwyn coming soon.
