Heart ES-30

[rb1957]

another electric "pipe-dream".

I don't know the installed power, but they say 30 pax has a range (with reserves) of 200km and a recharge time of 30 minutes.
They do have an ugly pannier, presumably for the batteries ... at least convenient for ground re-charge.

And with a strutted wing, max speed will be low.

"Hoffen wir mal, dass alles gut geht !"
General Paulus, Nov 1942, outside Stalingrad after the launch of Operation Uranus.

 

[IRstuff]

The hybrid approach seems like a plausible way to deal with the reserve capacity problem, but they'll need to contantly exercising it to ensure it works when needed

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert!

https://www.youtube.com/watch?v=BKorP55Aqvg

faq731-376 forum1529 Entire Forum list

http://www.eng-tips.com/forumlist.cfm

 

[rb1957]

I can see some logic for an APU charging batteries (it'd be working at its optimum design point, so most efficient)
but it is an ugly compromise ... this approach has been disregarded in cars.

but they also say electric only operation. I guess adding the range extender gives them some tolerance to electric only "foul ups".

But certifying this isn't going to be easy.

"Hoffen wir mal, dass alles gut geht !"
General Paulus, Nov 1942, outside Stalingrad after the launch of Operation Uranus.

 

[IRstuff]

The APU is supposedly for reserve; I read somewhere, possibly here, that the A/C needs something like a 30 minute reserve flight capacity; which would be a killer if it were battery-based.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert!

https://www.youtube.com/watch?v=BKorP55Aqvg

faq731-376 forum1529 Entire Forum list

http://www.eng-tips.com/forumlist.cfm

 

[rb1957]

yeah, I used "APU" as shorthand for "some gasoline engine that's only driving generators"

"Hoffen wir mal, dass alles gut geht !"
General Paulus, Nov 1942, outside Stalingrad after the launch of Operation Uranus.

 

[verymadmac]

The Far out there thought being given its a 45 minute reserve @ cruise (Part 135 & Part 121) I wonder what the installed weight would look like with say a dozen small solid fuel rockets and regenerative breaking om the props & flying the aircraft on a saw tooth flight profile. GA manages to cope with rockets for airframe chutes so its not impossible.

 

[moon161]

What about a hydrazine motor like the F16 for emergency power?

 

[MintJulep]

I don't think this, and "Alice" are pipe dreams.

Rather, they are business bets on future battery advances.

Get the design done. Get the aircraft certified.

Be first on the market when batteries get good enough to make commercial electric flight viable.

 

[RoarkS]

https://patentimages.storage.googleapis.com/fc/48/13/d1c83e1631325d/US20180047462A1.pdf

Just saying... That's been a minute.

 

[rb1957]

ok, now That is a pipe dream ! along the lines of a fission power plant for a plane.

"Hoffen wir mal, dass alles gut geht !"
General Paulus, Nov 1942, outside Stalingrad after the launch of Operation Uranus.