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Aurora D8 - looks interesting. #4758022
05/15/18 03:58 PM
05/15/18 03:58 PM
Joined: Dec 2002
Posts: 41,185
'Stralia
Shannow Offline OP
Shannow  Offline OP
Joined: Dec 2002
Posts: 41,185
'Stralia

Re: Aurora D8 - looks interesting. [Re: Shannow] #4758037
05/15/18 04:16 PM
05/15/18 04:16 PM
Joined: Dec 2017
Posts: 1,149
US
JLTD Offline
JLTD  Offline
Joined: Dec 2017
Posts: 1,149
US
Very interesting indeed!

Last edited by JLTD; 05/15/18 04:17 PM.

I'm a thickie; assimilate
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Re: Aurora D8 - looks interesting. [Re: Shannow] #4758060
05/15/18 05:01 PM
05/15/18 05:01 PM
Joined: Oct 2012
Posts: 2,170
Northern Ontario, Canada
Danno Offline
Danno  Offline
Joined: Oct 2012
Posts: 2,170
Northern Ontario, Canada
Who's funding it as they will be burning mega billions before it ever carries a paying passenger


2016 Sorento SX V6 AWD
2015 KIA RIO SX
2010 Mazda 3 2.0L
2009 Venza V6 AWD
2013 Sonata 2.4L RIP in write-off crash
Re: Aurora D8 - looks interesting. [Re: Shannow] #4758071
05/15/18 05:11 PM
05/15/18 05:11 PM
Joined: Aug 2008
Posts: 3,220
Where the wind comes sweepin'
Reddy45 Offline
Reddy45  Offline
Joined: Aug 2008
Posts: 3,220
Where the wind comes sweepin'
I want to believe..

Re: Aurora D8 - looks interesting. [Re: Shannow] #4758081
05/15/18 05:31 PM
05/15/18 05:31 PM
Joined: Sep 2005
Posts: 5,757
MIchigan
Warstud Offline
Warstud  Offline
Joined: Sep 2005
Posts: 5,757
MIchigan
Wasn't Aurora a top secret aircraft?

Re: Aurora D8 - looks interesting. [Re: Shannow] #4758096
05/15/18 05:46 PM
05/15/18 05:46 PM
Joined: Oct 2010
Posts: 7,033
Michigan
A_Harman Offline
A_Harman  Offline
Joined: Oct 2010
Posts: 7,033
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.


1985 Z51 Corvette track car
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Re: Aurora D8 - looks interesting. [Re: Shannow] #4758118
05/15/18 06:12 PM
05/15/18 06:12 PM
Joined: Aug 2008
Posts: 3,220
Where the wind comes sweepin'
Reddy45 Offline
Reddy45  Offline
Joined: Aug 2008
Posts: 3,220
Where the wind comes sweepin'
Still waiting for someone to make this:



LOL

Re: Aurora D8 - looks interesting. [Re: Shannow] #4760676
05/18/18 08:13 AM
05/18/18 08:13 AM
Joined: Feb 2003
Posts: 7,530
Jupiter, Florida
Cujet Offline
Cujet  Offline
Joined: Feb 2003
Posts: 7,530
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.

Last edited by Cujet; 05/18/18 08:21 AM.

People who count on their fingers should maintain a discreet silence.
Re: Aurora D8 - looks interesting. [Re: Shannow] #4761391
05/18/18 08:15 PM
05/18/18 08:15 PM
Joined: Aug 2008
Posts: 3,220
Where the wind comes sweepin'
Reddy45 Offline
Reddy45  Offline
Joined: Aug 2008
Posts: 3,220
Where the wind comes sweepin'
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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