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Caleb James DeLisle

Hmm.. 2KG per KW...

Gasoline is 0.7489 KG and 8.76 KW per liter. If the engine is 20% efficient that's going to be 1.75 KW usable per 0.7489 KG, or 0.42 KG per KW.

So with this battery chemistry you might get near 1/4 the range per weight of gasoline... It's creeping up there... CC: @CliffSecord

Replying to @cjd@pkteerium.xyz

Caleb James DeLisle

@cjd@pkteerium.xyz remote

You know where this could potentially have an application would be like trainers or club aircraft where you go up and putter around, but nobody's really trying to GO anywhere in particular - and you want to save money on fuel...

Also catastrophic failure in EV motors & batteries is more-or-less unheard of so that eliminates one source of anxiety.

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Replying to @cjd@pkteerium.xyz

Cliff "It Never Happened" Secord 🇺🇸🇷🇺

@CliffSecord@nicecrew.digital remote

Rolls-Royce modified a Nemesis NXT with a couple YASA 750R motors (we have one such motor at our shop that we scored at an estate sale) and set a speed record. Its endurance time is not known...but cannot imagine it being much.

https://youtu.be/4hapBP-Cdis

Replying to @CliffSecord@nicecrew.digital

Caleb James DeLisle

@cjd@pkteerium.xyz remote

It's a nice demo, but of course they're showing off a solution to the easy problem here. Power density in EV motors is pretty insane, and battery discharge rates as well - since they need all of that in order to fast charge.

I was thinking is it's probably possible to fit prismatic cells in the wings if they're re-engineered a little bit, then you don't need that giant nose. Whatever weight you were holding in fuel is the weight of batteries you can hold, so your range is 1/4 or 1/5 of what it was.