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#4758022 - 05/15/18 03:58 PM Aurora D8 - looks interesting.
Shannow Online   content


Registered: 12/12/02
Posts: 40464
Loc: 'Stralia

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#4758037 - 05/15/18 04:16 PM Re: Aurora D8 - looks interesting. [Re: Shannow]
JLTD Offline


Registered: 12/15/17
Posts: 929
Loc: US
Very interesting indeed!


Edited by JLTD (05/15/18 04:17 PM)
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#4758060 - 05/15/18 05:01 PM Re: Aurora D8 - looks interesting. [Re: Shannow]
Danno Offline


Registered: 10/07/12
Posts: 2048
Loc: Northern Ontario, Canada
Who's funding it as they will be burning mega billions before it ever carries a paying passenger
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#4758071 - 05/15/18 05:11 PM Re: Aurora D8 - looks interesting. [Re: Shannow]
Reddy45 Offline


Registered: 08/15/08
Posts: 3070
Loc: USA
I want to believe..

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#4758081 - 05/15/18 05:31 PM Re: Aurora D8 - looks interesting. [Re: Shannow]
Warstud Offline


Registered: 09/02/05
Posts: 5571
Loc: MIchigan
Wasn't Aurora a top secret aircraft?

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#4758096 - 05/15/18 05:46 PM Re: Aurora D8 - looks interesting. [Re: Shannow]
A_Harman Offline


Registered: 10/01/10
Posts: 6972
Loc: Michigan
If the drag of the twin vertical tails doesn't cancel out the reduction in drag realized by the boundary layer ingestion, they may have something. And the T-tail design long ago demonstrated that it causes pitch instability at high angles of attack, but perhaps airliners never reach those conditions. The wings don't look well integrated in their attachment to the fuselage. I thought blended-wing designs were all the rage in aviation these days.
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#4758118 - 05/15/18 06:12 PM Re: Aurora D8 - looks interesting. [Re: Shannow]
Reddy45 Offline


Registered: 08/15/08
Posts: 3070
Loc: USA
Still waiting for someone to make this:



LOL

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#4760676 - 05/18/18 08:13 AM Re: Aurora D8 - looks interesting. [Re: Shannow]
Cujet Offline


Registered: 02/15/03
Posts: 7300
Loc: Jupiter, Florida
I love aviation vaporware. All sorts of crazy claims, with not one shred of actual aerodynamic reality.

The Honda jet is a prime example. Crazy claims, sub-par real world speed, payload and range. Today's passenger aircraft are very well refined, highly aerodynamic, and today's engines maximize the ability to convert jet fuel into high speed thrust.


One more interesting example. GE's Passport engine initially claimed 25% improvement in fuel specifics, due to the use of ceramics and other technologies such as bladed discs (one piece rotors and blades) . The claim was then reduced to 8% improvement in TSFC (take off thrust fuel specifics) Reality is another story altogether, it seems we are looking at a 2-4% improvement over older designs, and possibly a difficult to discern improvement over the BR725 in real world use. GE and Bombardier made claims of incredible range and speeds. The reality is that their newest aircraft falls short of the speed, range and fuel consumption of the BR725 powered G650ER Gulfstream has been selling for years.

My point is that we've spent a lot of effort getting it right over the last 70 years. I'll be surprised if we see any substantial gains in passenger MPG, which hovers around 100 passenger MPG on our best aircraft and routes today.


Edited by Cujet (05/18/18 08:21 AM)
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#4761391 - 05/18/18 08:15 PM Re: Aurora D8 - looks interesting. [Re: Shannow]
Reddy45 Offline


Registered: 08/15/08
Posts: 3070
Loc: USA
Makes you wonder what planes would be like if they could run on nuclear energy. With efficiency not being a concern, could we make planes a lot more comfortable?

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