The Airframer Bulletin

DLR HAP-alpha

All news ✕ Clear ‹ Current edition

Every Bulletin story and press release covering DLR HAP-alpha, newest first.

5 items

2026

3 September

ReleaseDLR's HAP-alpha high-altitude platform takes off for the first time

2025

8 December

ReleaseDrone testing – from everyday applications to defence

5 December

ReleaseDLR conducts ground roll tests with HAP-alpha – the uncrewed high-altitude solar aircraft

24 July

HAP-alpha will fly at around 20 kilometres in the lower stratosphere.

DLR completes vibration test for solar HAP-alpha aircraft

The stratospheric platform project has passed vibration testing in Cochstedt as DLR now works towards future sensor trials and 2026 flight readiness.

2021

21 April

ReleaseDLR develops an unmanned stratospheric aircraft