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WarAnalyst's avatar

Hi Jared, following and enjoying your work very much.

Reading this and also having met Levinson a few times, I feel something is missing here, and it makes me categorize this claim on the marketing side of things and less on the evidence/analysis side.

The main issue is the power paradigm:

"When asked about the power requirements for airborne lasers weapons and associated challenges that Griffin described in 2020, Levinson responded that the company's Z1's 1.2 kw hydrogen fuel cell "provides for a lot of onboard power for payloads and devices not associated with simply keeping the aircraft flying."

"That's one of the other nice things about fuel cells: they can sustain higher power output for much longer than batteries," he added. "For larger operational requirements, [Heven's] Raider is expected to have 9 kw of onboard power output from its fuel cells. We're continually developing fuel cell technologies to provide higher power output, more efficiency, and better power management across our platforms.""

It sounds like he solved a problem that even ground systems don't solve with the power source alone - power burst. From what I understood (also from your own writings) HEL systems use a hybrid approach where batteries are not just used for power storage but mainly for the power burst/pulse, and the generator or grid recharges them. I am not aware of a fuel cell based system that does it without batteries. So realistically it would be a hybrid fuel cell + battery system on the drone too, and then the question becomes how much battery the drone can carry.

So I would say even as hybrid, the fuel cell helps with endurance between engagements, but the burst still comes from the battery, and the drone has to carry that weight.

—comment only fine tuned with ai—

jaycee's avatar

I've been writing about this for at least 2 years. In fact, I have an article about drone motherships on here.

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