Online E-Learning Course

Our team

Nice to meet you!

Let’s introduce ourselves

Welcome to the Earth & Flight Composites team. Click on the “MORE INFORMATION” button to familiarize yourself with the expertise of each team member.

Bert Groenewoud

Founder and CEO of Earth & Flight Composites

Alex Gil Rojas

Instructor and experianced design & tooling Engineer

Robert Otterspoor

Instructor and Repair Specialist -Certifying Staff

Rolf Alexander Hovenener

Business Development & Purchasing Manager

Do You..
want to know more about EFC?
Today engineers, certifying staff, managers and technicians live in a world of increasing deadlines with an ever growing need for deep and immediate technical knowledge. EFC understands these needs and has created short, intensive programs with your best interest in mind.

Read more about EFC in our flyer, You can download this via the link next to this box.

EFC Mission statement

Our mission is to provide the highest level of understanding and expertise in the aerospace and advanced composites community. By fulfilling our mission we will improve the life’s of those trusting us with their technical training, engineering support, and research development.

We also believe in a sustainable relationship with our customers, based on trust and high quality service from which the best solutions for companies and private individuals can be reached.


EFC operates from  Hoofddorp nearby Amsterdam Schiphol Airport, and Earth & Flight Composites BV, (EFC) Training & Consultancy offers you the opportunity to learn the latest updates in the industry

Training locations: In partnership, EFC has agreed sins 2017 with HEICO, Aircraft Maintenace a Part 145 org. Located in Leipzig, Germany and in 2020 with GTM Advanced Structures in the Hague, The Netherlands, to conduct hands-on classes in their Composite shops. Furthermore, in August 2021, we can also conduct theoretical and  Hand-on training at 4UExperts a Part 21J  and Part 145 org. in Frankfurt Airport, Germany.
We also have a long-lasting partnership, and sins 2020 represent GMI Aeroin Paris, France, in the Netherlands using their Hot bonding and equipment for our composites training.

Visit our NEW Online elearning website (Click this link) sins April 2021 with interesting information and composites e-learning courses and BLOG post information in Aviation composite Repair to update your current knowledge.

On request, we can organize training on every spot in the world. So if you require local training, don't hesitate to get in touch with us at