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Author Topic: NASA projects  (Read 116877 times)

Offline hesham

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NASA projects
« on: September 02, 2007, 09:59:46 am »
Hi,

We can speak about NASA projects which was never built.

During the end of 1970s,NASA had launched a program for Energy Efficient Aircraft,
a joint NASA/US industry research and development project to reduce by 50 per cent
the fuel consumption of future generation civil transport aircraft,the project was
for airliner aircraft powered by four rear mounted engines (look like Vickers VC-10),
I have a picture for the model but I can't send it.

Offline Jemiba

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Re: NASA projects
« Reply #1 on: November 09, 2007, 01:01:39 pm »
From Aviation Week October 1974, a photo of a model for an
energy efficient airliner, using composites, supercritical aerodynamics,
laminar flow control and fuselage boundary layer injection. Fuel savings
of about 55 % were expected ( against the 1974 standard) !
I think, this number already shows, that these concepts shouldn't be
regarded as "projects", but more as research for principles and techniques.   
It takes a long time, before all mistakes are made ...

Offline hesham

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Re: NASA projects
« Reply #2 on: November 10, 2007, 10:40:48 am »
Good find my dear Jemiba,

and the picture for the model which I have,was look like Vickers VC-10
with four rear mounted engines.

Offline hesham

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Re: NASA projects
« Reply #3 on: December 31, 2007, 10:11:42 am »
Hi,

the NASA high-speed tilt-rotor X-wing project,it is new for me.

http://www.flightglobal.com/PDFArchive/View/1988/1988%20-%200132.html
« Last Edit: March 15, 2011, 04:56:38 am by hesham »

Offline Jemiba

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Re: NASA projects
« Reply #4 on: January 01, 2008, 03:47:02 am »
Looks remarkably similar to the Bell-Boeing "supersonic combat tilt-rotor"
we had here http://www.secretprojects.co.uk/forum/index.php/topic,2140.15.html :
 
It takes a long time, before all mistakes are made ...

Offline hesham

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Re: NASA projects
« Reply #5 on: January 04, 2008, 08:42:30 am »
« Last Edit: March 15, 2011, 04:57:03 am by hesham »

Offline lantinian

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Re: NASA projects
« Reply #6 on: January 04, 2008, 09:57:04 am »
I will just make sure we don't miss the X-33

A subscale model (1/3) of a Single Stage To Orbit (SSTO) unmaned shuttle called the Venture Star.

The X-33 was designed to demonstrate several technologies that will enable low cost to orbit possible:
- aerospike engine (success)
- metallic thermal protection system (success)
- all composite fuel tank (failure)

After the good advice of the engineers, the program managers kept on with the composite tanks which failed in two consecutive test. By this time, the engineers have come up with a all aluminium design that was even lighter but did not have a chance to implement it.
A well known NASA official spoke to the Congress that is not worth to proceed unless all tree technologies can be tested. The importance of the composite tanks was due to the large civilian involvement in their fabrication.

An excellent article on the cancellation is here:
http://www.nasaspaceflight.com/content/?cid=4180

I found, flaterich had also a tread going on the X-33 here
http://www.secretprojects.co.uk/forum/index.php/topic,2756.0.html
« Last Edit: January 04, 2008, 09:59:10 am by lantinian »
We have to shape the future or others will do it for us.....Cdr. Ivanova, Babylon 5

Offline hesham

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Re: NASA projects
« Reply #7 on: January 15, 2008, 09:46:06 am »
Yes my dear Jemiba,

and here is some NASA HSCT and SST.

Offline agricola64

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Re: NASA projects
« Reply #8 on: January 15, 2008, 10:37:11 am »
the second picture is the X47A scramjet demonstrator - a very short time after separation form its pegasus booster ..

Offline sferrin

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Re: NASA projects
« Reply #9 on: January 15, 2008, 11:20:33 am »
X-43
"DARPA Hard"  It ain't what it use to be.

Offline agricola64

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Re: NASA projects
« Reply #10 on: January 15, 2008, 12:24:08 pm »
yep . X43a .. sorry for the typo ..

Offline Antonio

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Re: NASA projects
« Reply #11 on: January 23, 2008, 05:35:14 am »
Many thanks for the link Hesham, what I really love from that document it's the Bell L-39 sweep wing research aircraft. I've never seen it before in flight and looks wonderful.

Offline Antonio

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Re: NASA projects
« Reply #12 on: March 21, 2008, 05:39:30 am »
Great finding Hesham! :)

Could you please post the source?

Thanks in advance

Offline hesham

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Re: NASA projects
« Reply #13 on: March 23, 2008, 10:14:56 am »
My dear Pometablava,

I found to you the ex-projects source;
http://history.nasa.gov/SP-4302/ch1.11.htm

And here is anther Ogee wing and delta wing SST projects.
http://history.nasa.gov/SP-4302/ch3.9.htm

Offline hesham

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Re: NASA projects
« Reply #14 on: March 25, 2008, 04:54:29 am »
Hi,

V-tail jet propulsion aircraft model and supersonic ramjet artist,
also the X-15 for hypersonic and a hypersonic model.
http://history.nasa.gov/SP-4305/ch8.htm
http://history.nasa.gov/SP-4305/ch10.htm
http://history.nasa.gov/SP-4305/ch12.htm
« Last Edit: March 25, 2008, 05:11:01 am by hesham »