jjsylvestre

7 ms·

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by jjsylvestre 6y ago
Theoretically, yes I think so. There are some key enabling technologies (energy storage and electric propulsion) that need to be developed further before something like that could be built.
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by jjsylvestre 6y ago
Paging Elon..
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by jjsylvestre 6y ago
I'll let @mliben comment on the motor questions. The motor inductance is relatively low so we're running a high switching frequency (40-60kHz) to maintain reasonable phase current ripple. No output filter is used. Also, our phase
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by jjsylvestre 6y ago
Absolutely. Appreciate the advice Nate!
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by jjsylvestre 6y ago
We are planning to add a MW-class machine to our portfolio in the next five years which could serve as a nice replacement for the dirty diesel engines on these larger ships. Looking at Taiga Motor's electric jet ski, 250kW would be a b
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by jjsylvestre 6y ago
Yeah this is definitely a market we're looking into - both KERs and Formula E drive units. Great product-market fit.
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by jjsylvestre 6y ago
Love the brainstorming. As you mentioned, "decoupling" the cruise mode from the takeoff mode could make a lot of sense. One of the most innovative and feasible solutions I've seen is from a former YC company called Talyn Air
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by jjsylvestre 6y ago
Love what they are doing. I would consider them one of the leaders in the pack right now. Val has a practical vision to get to market on a timeline that is very compelling. Hydrogen FC is very promising for long-range flight applications du
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by jjsylvestre 6y ago
The big advantage of using existing airframes is that you dramatically reduce certification costs and commercialization time. If you can "retrofit" an existing airframe with electric propulsion, then you can get to market a lot fa
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by jjsylvestre 6y ago
1. There are parts that are certainly harder and there is one part I can think of that may be easier. - Harder: Longer and more expensive iteration cycles, MVP can be expensive, manufacturing and production required to scale, expensive ce
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by jjsylvestre 6y ago
Also, cargo UAV is a big one right now. Many UAM companies are using this as a stepping stone to start generating revenue while they certify their aircraft. Marine is a big one though.. especially in Scandinavia. Lots of interest in electri
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by jjsylvestre 6y ago
Thanks! Yes, high-altitude UAVs is a great application for our motors. We're developing a new insulation system for our coils so we have spent a lot of time looking into the challenges high altitude poses - corona, cooling, all sorts
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by jjsylvestre 6y ago
This is an excellent question. For narrow body aircraft we've studied, they require high propulsive power during the takeoff and climb phases, and a fraction of the peak propulsive power during the cruise phase. One aircraft we looked
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Launch HN: H3X (YC W21) – High power density electric aircraft motors
229 points by jjsylvestre 6y ago|164 comments