Aircraft program
Single piston motor glider with retractable nose mounted propeller. Developed from the Stemme S10-VTX, and formerly called Ecarys ES15. Also see Safran Patroller.
The aircraft as engineered: what it is built from, the systems it flies with, and its configuration — each box a theme.
Notable technologies — each tag names a technology on our research record for this aircraft, with its fitting status: Primary, Standard, Option or Planned.
Technical reference compiled with AI research; a value appears only where two independent research passes and a web fact-check agree. Gaps are deliberate.
Supplier geography and market analysis for this program — shown free on sponsored programs, or with an Analytics subscription.
See Analytics rates| Variant | Launch / first flight | Production end | Notes |
|---|---|---|---|
| Stemme ES15 | 1996 / 2006 | Surveillence aircraft, capable of being optionally or autonomously piloted. First automatic flight achieved in 2012. | |
| CADG Helix | 2018 / 2018 | Variant with added single (or optionally two) hardpoint(s) under each wing, includes improved Helix 2. |
| Stemme GmbH | News | Manufacture airframe for professional customers only |
| CADG Aeronautical Innovations - Helix ISR | Airframer (Helix) |
| Stemme S12 Twin Voyager |
The program’s dated history — milestones, contracts, supplier selections and facilities, each linked to its source. Log in to view.
Information on this page is compiled from a variety of published sources; links do not necessarily imply recommendation or confirmation by the airframe manufacturer.
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