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| EPS 100 | ●●●●●●●●●● | Why is this obscured? |
| BRM AERO Bristell | ●●●●●●●●●● | ●●●●●●●●●● | Why is this obscured? |
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| Smartflyer SF1 | ●●●●●●●●●● | ●●●●●●●●●● |
| 18/03/2026 | Press Release: H55 battery technology helps power progress of RTX Hybrid-Electric Flight Demonstrator | |
| 05/02/2026 | NEWS: H55 clears key battery certification hurdle | |
| 12/09/2025 | Press Release: Smartflyer and H55 partner to power the SF-1 | |
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