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

Registered: 12/12/02
Posts: 39455
Loc: 'Stralia

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

Registered: 12/15/17
Posts: 526
Loc: US
Very interesting indeed!

Edited by JLTD (05/15/18 04:17 PM)
2015 4Runner SR5 1GR-FE
Testing: Amsoil OE, 5w20 vs 5w30...then longer OCI on SS

#4758060 - 05/15/18 05:01 PM Re: Aurora D8 - looks interesting. [Re: Shannow]
Danno Online   content

Registered: 10/07/12
Posts: 1960
Loc: 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
2010 Mazda 3 2.0L
2009 Venza V6 AWD
2013 Sonata 2.4L RIP in write-off crash

#4758071 - 05/15/18 05:11 PM Re: Aurora D8 - looks interesting. [Re: Shannow]
Reddy45 Offline

Registered: 08/15/08
Posts: 2898
Loc: USA
I want to believe..

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

Registered: 09/02/05
Posts: 5298
Loc: MIchigan
Wasn't Aurora a top secret aircraft?

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

Registered: 10/01/10
Posts: 6901
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.
1985 Z51 Corvette track car
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2001 Dodge Ram 2500 diesel
1972 GMC 1500 shortbed project truck

#4758118 - 05/15/18 06:12 PM Re: Aurora D8 - looks interesting. [Re: Shannow]
Reddy45 Offline

Registered: 08/15/08
Posts: 2898
Loc: USA
Still waiting for someone to make this:


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

Registered: 02/15/03
Posts: 7071
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)

#4761391 - 05/18/18 08:15 PM Re: Aurora D8 - looks interesting. [Re: Shannow]
Reddy45 Offline

Registered: 08/15/08
Posts: 2898
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?