Logbook · 6 entries
The logbook
Debriefs, build notes and the occasional post-mortem. We publish the numbers that did not work as well as the ones that did — a logbook that only records good flights is not a logbook.
- Flight test
LAG-4 successful flight
Twelve minutes, manual and autonomous, landed safely — after early test flights that were far from promising.
Greylag · 2 min
- Flight test
LAG-X first flight
Our autonomous quadcopter delivery drone for SUAS 2026 flew manual and autonomous phases on its first outing.
Greylag · 2 min
- Build
LAG-4 assembly process
Once every component is produced, the real challenge begins: bringing everything together into a flight-ready system.
Greylag · 3 min
- Build
Vacuum infusion testing
A month of testing produced a full carbon-fiber UAV body that is both highly durable and lightweight.
Greylag · 3 min
- Build
Wing coating
A NACA 4412 profile cut from foam, coated in fiberglass and spared with carbon — stable, durable and efficient at once.
Greylag · 2 min
- Competition
Teknofest 2025 finalist
Top 20 out of more than 2,500 teams — and nine broken prototypes on the way there.
Greylag · 2 min
Keep the fleet flying
Carbon cloth, motors, batteries and a competition entry fee. The logbook only fills up if the aircraft leave the ground.