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Old 07-10-2019, 11:53 PM   #1 (permalink)
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Down the Rabbit Hole with Eviation's Alice

Wowsers.



Check out the skin radiators at https://youtu.be/W0DHhiwvatQ?t=104 and consider the architectural advantage of an ME-262 shark-like shape to the fuselage for headroom in a small cabin.

Props positioned to accelerate the three wake-producing areas, with [high frequency] torque vectoring because landing can be tricky. At https://youtu.be/W0DHhiwvatQ?t=145 the rendering shows two- and three-bladed props.

So what do you think? How will they look with advertising all over them?

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Old 07-11-2019, 11:02 AM   #2 (permalink)
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Somebody needs to call bill lear, they stole his plane.

I think I will be optimistic/ skeptical until type certified and produced.
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Old 07-11-2019, 12:58 PM   #3 (permalink)
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The Lear Jet had two turbojets on the fuselage and a T-tail. ....and a round fuselage. I'm more reminded of Scaled Composites.
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Old 07-12-2019, 11:37 AM   #4 (permalink)
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LEAR FAN. Two intakes on fuselage, I believe a pair PT-6 turbo shaft inside, "Y" tail. The black engineering prototype was across the street from my old job.

Maybe your right, does have that scaled composites look.
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Old 07-15-2019, 10:53 AM   #5 (permalink)
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Pretty amazing plane!
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Old 07-15-2019, 11:41 AM   #6 (permalink)
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I mean, kind of? But also not really?

SC definitely does the non-tubular fuselage thing a lot though... nothing like this either, really.


Last edited by samwichse; 07-15-2019 at 11:54 AM..
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Old 07-15-2019, 03:34 PM   #7 (permalink)
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https://en.wikipedia.org/wiki/Learjet#Timeline

I looked at the link I provided, there was a major redesign a one point. Isn't there some disadvantage to the V-tail? Maybe compared to Y- or T-tail?

There's airframe and there's power plant. Those skin radiators need a lot of wetted area.
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Old 07-15-2019, 10:36 PM   #8 (permalink)
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A V tail has less drag than a conventional tail, because there are fewer intersecting surfaces. A T tail is slightly lower drag, I think, because the intersections are farther apart? But the structural simplicity of the V tail gives it a bit of a weight advantage, maybe?

I am surprised a bit by the slim wings, and slender wing section.

The wing tip motor pods would seem to alleviate the vortex drag, I think?
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Old 07-15-2019, 10:47 PM   #9 (permalink)
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Quote:
Originally Posted by NeilBlanchard View Post
I am surprised a bit by the slim wings, and slender wing section.
I wouldn't be. If you're looking for maximum efficiency but not necessarily maximum speed.



Or high altitude and maximizing dwell time on not much fuel.

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Old 07-15-2019, 11:18 PM   #10 (permalink)
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https://duckduckgo.com/?q=aircraft+V-tail+disadvantage

Apparently less interference drag but more wetted area required. And more complicated control linkages.

It looks like all the air sees is high-efficiency airfoils and propellers sucking any detached airflow for lunch.

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