/sci/ - Science & Math » Thread #11002420

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Anonymous Wed 25 Sep 13:21:17 2019 No.11002420 View Reply Original Report

Quoted By: >>11002684 >>11002731 >>11002737 >>11002756 >>11002796 >>11002812 >>11005964

Here’s your electric airliner bro

Anonymous

Anonymous Wed 25 Sep 2019 14:21:54 No.11002559 Report

Quoted By:

>airliner
>seats 8

Anonymous

Anonymous Wed 25 Sep 2019 15:22:35 No.11002684 Report

Quoted By: >>11004837

>>11002420
Give some deets. I gotta admit. Usually I told you so but I never thought we'd get this far and I have said as much. And this is my line of "expertise." I shall be eating crow for breakfast, lunch and dinner. We are still miles away from practicality but, thos ain't going nowhere.

Anonymous

Anonymous Wed 25 Sep 2019 15:41:53 No.11002731 Report

Quoted By: >>11004837

>>11002420
cruising range?

Anonymous

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Anonymous Wed 25 Sep 2019 15:43:41 No.11002737 Report

Quoted By: >>11002749

>>11002420
>Alice Commuter
Designed to take 9 passengers up to 650 miles at a cruise speed of 240 knots. Alice will redefine regional transportation as an all-electric aircraft.

interesting

Anonymous

Anonymous Wed 25 Sep 2019 15:48:41 No.11002749 Report

Quoted By: >>11002772

>>11002737
An airline I'm hoping to work for might get these, but it'll be after I'm hopefully done with that stage of my flying career.

They're going to replace piston twins on ultra-low density, low altitude, short range runs. Piston aircraft are maintenance hogs and so the extra cost of electric will be more than made up for by the greatly reduced maintenance regimens required to keep them flying.

That said, we're still a great many decades away from electric ever being able to disrupt jets and turboprops.

Anonymous

Anonymous Wed 25 Sep 2019 15:51:11 No.11002756 Report

Quoted By: >>11002777 >>11002807

>>11002420
That rear-mounted propellor looks like it'll be a maintenance nightmare. These sorts of aircraft are flown by fresh pilots in marginal conditions, and any aircraft design that risks a propstrike from over-rotation on takeoff or an over-flare on landing seems absolutely retarded. Hopefully they give this thing a big ventral vertical stabilizer with a nice sturdy skid plate on it.

Anonymous

Anonymous Wed 25 Sep 2019 15:58:18 No.11002772 Report

Quoted By:

>>11002749
The expectation of quality has plummeted in regards to electric morors. It isn't like they didn't have plastic and skateboard bearings in the 60s. Loss of life is simply factored in to the bottom line. In the good old days, people actually avoided killing each other, unless on purpose.

Anonymous

Anonymous Wed 25 Sep 2019 16:00:54 No.11002777 Report

Quoted By:

>>11002756
I looked over you. Good point. Sure you can't afford to put anything sturdy on it. But hey, a little more advancement in the near impossible and, we're there.

Anonymous

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Anonymous Wed 25 Sep 2019 16:08:41 No.11002796 Report

Quoted By: >>11002842

>>11002420
https://en.wikipedia.org/wiki/Eviation_Alice
Role Electric aircraft
National origin Israel
Manufacturer Eviation Aircraft
First flight planned May/June 2019[1]
Introduction planned 2021-2022[2]
Status Under development
Unit cost
$4 million.[3]

General characteristics

Crew: 2
Capacity: 9 passengers, maximum payload of 1,250kg (2,750lb)[1]
Length: 12.2 m (40 ft 0 in)
Wingspan: 16.12 m (52 ft 11 in)
Max takeoff weight: 6,350 kg (13,999 lb)
Fuel capacity: 900 kWh, Li-ion
Powerplant: 3 × electric motors , 260 kW (350 hp) each

Performance

Cruise speed: 482 km/h (300 mph, 260 kn) at 3,000 m (10,000 ft)
Never exceed speed: 630 km/h (390 mph, 340 kn)
Range: 1,046 km (650 mi, 565 nmi) including IFR reserve
Service ceiling: 9,100 m (29,900 ft)
Approach speed: 185 km/h; 115 mph (100 kn)

Anonymous

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Anonymous Wed 25 Sep 2019 16:11:18 No.11002807 Report

Quoted By: >>11002827 >>11003009 >>11003047 >>11004328 >>11006073

>>11002756
>rear-mounted propellor
Wait what? *peers closer* Hahaha, holy shit. I'd scrap that shit off on the 1st take off let alone trying to land the fucking thing.

Anonymous

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Anonymous Wed 25 Sep 2019 16:13:00 No.11002812 Report

Quoted By:

>>11002420
>op posts cgi version
>all the support is on the front of the aircraft
>literally nothing holding it up in the back

Anonymous

Anonymous Wed 25 Sep 2019 16:19:45 No.11002827 Report

Quoted By: >>11002849

>>11002807
Thats a better pic. I guess you may reach take off before you get the seemingly five inches of attitude to propstrike the rear. But, Im in an optimistic mode at the moment. Where are you guys coming from? I felt like the aviation expert here and now I feel like a dummy in good company.

Anonymous

Anonymous Wed 25 Sep 2019 16:23:33 No.11002842 Report

Quoted By: >>11002849

>>11002796
>National origin Israel
into the trash it goes

Anonymous

Anonymous Wed 25 Sep 2019 16:26:45 No.11002849 Report

Quoted By: >>11002944 >>11002974

>>11002827
>Thats a better pic.
It is a real pic, unlike the OP CGI image with the steps holding up the rear via levitation.

>Where are you guys coming from?
Everything except actual piloting. You learn a massive amount of shit, in only like 30 mins of playing around with a simple RC plane you carved out of a block of foam with a hot wire and slapped RC shit onto it.

>>11002842
>made with US funds & protection
Does that make it better? lol

Anonymous

Anonymous Wed 25 Sep 2019 17:16:41 No.11002944 Report

Quoted By:

>>11002849
Based. Probably know more than 99 percent of aircraft mechanics.

Anonymous

Anonymous Wed 25 Sep 2019 17:30:06 No.11002974 Report

Quoted By: >>11003009

>>11002849
>unlike the OP CGI image with the steps holding up the rear via levitation.
???
its a trike with a front wheel in the op cgi pic lol

Anonymous

Anonymous Wed 25 Sep 2019 17:43:01 No.11003009 Report

Quoted By: >>11003047

>>11002974
There's too much mass past those rear wheels for that specific design to work for any kind of takeoff. Check >>11002807 for a better configuration.

Anonymous

Anonymous Wed 25 Sep 2019 17:58:51 No.11003047 Report

Quoted By: >>11003079 >>11003083

>>11003009
>There's too much mass past those rear wheels for that specific design to work for any kind of takeoff
You can tell all that from a CGI render from a shitty angle? Are you a wizard?
Really though, the rear wheels would be just behind the CG.
It's hard to tell but looks pretty close to me.
>Check >>11002807 for a better configuration.
Obviously the real one is the better design with that rear engine.
I'm just saying its not levitating holy shit.

Anonymous

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Anonymous Wed 25 Sep 2019 18:11:55 No.11003079 Report

Quoted By: >>11003202

>>11003047
>You can tell all that from a CGI render from a shitty angle?
Of course. Why do you think they changed it? It isn't even swept up in the back like it'd need to be with that configuration. It is terrible. Here is what a correct design looks like with that type of wheel configuration.

Anonymous

Anonymous Wed 25 Sep 2019 18:13:41 No.11003083 Report

Quoted By:

>>11003047
I already gave Anon due respect (not Anon.) do you dare challenge me???

Anonymous

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Anonymous Wed 25 Sep 2019 18:57:00 No.11003202 Report

Quoted By: >>11003501

>>11003079
I didn't disagree that its a shit design...
All I'm saying is that It could sit there just fine in that configuration without levitation, assuming the center of gravity is in front of the rear wheels.

Anonymous

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Anonymous Wed 25 Sep 2019 20:43:51 No.11003501 Report

Quoted By: >>11004542 >>11005100

>>11003202
>assuming the center of gravity is in front of the rear wheels.
It obviously isn't. Even the actual first flying model was slightly different from this hot CG mess.

Anonymous

Anonymous Thu 26 Sep 2019 00:36:57 No.11004328 Report

Quoted By:

>>11002807
Imagine landing that fucking thing in a crosswind. God help those poor passengers.

Anonymous

Anonymous Thu 26 Sep 2019 01:36:55 No.11004542 Report

Quoted By: >>11006067

>>11003501
>It obviously isn't.
Depends where the batteries are, I'd think.

Anonymous

Anonymous Thu 26 Sep 2019 03:42:24 No.11004798 Report

Quoted By:

i think it's a cute plane. please don't bully it.

Anonymous

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Anonymous Thu 26 Sep 2019 03:57:39 No.11004837 Report

Quoted By:

>>11002684
>>11002731
You know, you don't *have* to rely on 4Chan for your info, though it's good for introductions.

Anonymous

Anonymous Thu 26 Sep 2019 06:32:51 No.11005100 Report

Quoted By: >>11006067

>>11003501
>It obviously isn't
kek. good thing pilots don't check their cg by looking at a fucking pic

Anonymous

Anonymous Thu 26 Sep 2019 15:21:56 No.11005964 Report

Quoted By: >>11006028 >>11006073

>>11002420
annoying, I can't find a single non-rendered picture of it actually flying, not even short takeoffs or landings.

Anonymous

Anonymous Thu 26 Sep 2019 15:49:02 No.11006028 Report

Quoted By: >>11006073

>>11005964
That's because it hasn't flown yet.

Anonymous

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Anonymous Thu 26 Sep 2019 16:04:32 No.11006067 Report

Quoted By: >>11006440

>>11004542
And how fat the passengers in the back are.

>>11005100
It was designed by a gay physicist Israeli, with a BS in History, who doesn't even have a pilot's license. I guess some details just need to be, "worked out," or something. kek

https://www.eviation.co/

Anonymous

Anonymous Thu 26 Sep 2019 16:07:13 No.11006073 Report

Quoted By: >>11006440

>>11006028
>>11005964
The only thing they flew was the initial protoptype which is a scale model to ensure the aerodynamics would work. They immediately redesigned it to what you see in >>11002807 of course. lol

Anonymous

Anonymous Thu 26 Sep 2019 18:10:20 No.11006440 Report

Quoted By:

>>11006067
>>11006073

With Jews you, well, you know...

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