DEFTECH-DAYS High Altitude Platforms

September 17th 2020


High Altitude Platforms

High altitude platforms (HAPs) are aircraft, airships or balloons situated in the stratosphere (from 17 to 22 km above the ground) and can provide applications over regional areas of coverage.

They can be used for a variety of services, including wireless communication, remote sensing, navigation or atmospheric science research. They can provide real-time monitoring of ground-based infrastructure or environmental features, or can be used to enhance position signals.

HAPs have the potential capability to serve a large number of users in the civilian and military communities. Their high altitude, longevity, and autonomous control are advantages for the civilian applications, while their detectability could present weaknesses for defence uses.


08:30 – 09:00

Registration and Coffee

09:00 – 09:15


Dr. Quentin Ladetto, armasuisse S+T
Dr. Ulrich Langer, armasuisse S+T

09:15 – 10:45

Platform Part 1


Mrs. Roser Roca Toha, HAPS Alliance

Mr. Andy Elson, Elson Space Engineering, UK

Mr. Mikkel Vestergaard, Sceye, CH

Mikkel Vestergaard

10:45 – 11:15

Networking Coffee

11:15 – 12:45

Platform Part 2

Mr. Léonard Buygues, Loon LLC, USA

Mr. Adolf Vetterli, Stratobus / Thales, FR

Mrs. Roser Roca Toha, Zephyr / Airbus, UK

12:45 – 13:45

Lunch & Demonstration

Mr. Lucien Moser, Dpendent, CH

13:45 – 15:15

Payload & Applications

Dr. David Grace, Centre for High Altitude Platform Applications, UK

Dr. Micheal Brandfass, Hensoldt, DE

Dr. Holger Schumann, German Aerospace Center, DE

15:15 – 16:00

Operations & Legal Questions

Mr. Michael Anger, Unisphere GmbH, DE

Mrs. Andreea Perca, Federal Office of Civil Aviation, CH

16:00 – 16:30

Conclusion & Networking Coffee


End of the Day


  • The event is free of charge

  • You can join physically (limited number of participants) or follow it online (NEW) !

  • Registration is MANDATORY

  • Registration deadline (for physical participation):  September 6th 2020

Place of venue

Bus Line: 4
Bus Stop: Waldeck

Parking: Feuerwerkerstrasse 39
3602 Thun