Pratt & Northrop Success

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Pratt & Northrop Success

Postby ryguy » Fri Jan 09, 2009 5:20 pm

Pratt & Northrop X-47B

"The most technologically advanced unmanned air vehicle in development."

Champagne all around - eh Ray? :)

-Ry
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Re: Pratt & Northrop Success

Postby You Can Call Me Ray » Fri Jan 09, 2009 5:35 pm

ryguy wrote:Pratt & Northrop X-47B

"The most technologically advanced unmanned air vehicle in development."

Champagne all around - eh Ray? :)


No doubt, Ry! I did the intial design of the engine sequencing and throttle control laws within the Vehicle Management System (VMS) for the X-47B before moving on to other projects. I think the champagne will REALLY start to flow at first flight, and we will have really accomplished something when we see the very first time an autonomous, unmanned vehicle (this one!) lands on an aircraft carrier. That is when I will take a break to be proud of what we have done. ;)

I really liked working with the Pratt guys on that program, and a couple of them have moved on to the same program I am working now. You've got some great people there!

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Re: Pratt & Northrop Success

Postby longhaircowboy » Wed Mar 25, 2009 10:05 pm

Hey is that the same one I've seen refered to as Pegasus and is it in the air yet?
Oh and that link above sends you to a subscription page.
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Re: Pratt & Northrop Success

Postby You Can Call Me Ray » Thu Mar 26, 2009 2:39 am

Hi LHC,

longhaircowboy wrote:Hey is that the same one I've seen refered to as Pegasus and is it in the air yet?
Oh and that link above sends you to a subscription page.


Pegasus was the X-47A, and yes it flew several flights. We threw that together in a matter of 2 years time just to show the GOV what we were capable of. Here are some links to a few X-47A pages:

http://www.airforce-technology.com/projects/x47/

http://www.youtube.com/watch?v=crfLkasFp68

The X-47B is the next generation, and you can see we went from a plain "kite" planform to a more efficient "cranked kite" planform, mostly because the increase wingspan will help a great deal with low speed maneuvering characteristics which are necessary for carrier landings.

http://www.is.northropgrumman.com/syste ... sx47b.html

http://www.youtube.com/watch?v=qbbMMAThTiY

This second video is CGI artwork. The X-47B has not flown yet, and will not go to the carrier until it has done a LOT of practice carrier landings in Virginia at NAS Patuxent River.

Oh, and BTW... both the X-47A and B are autonomous UAVs... that means there is no guy somewhere flying it remotely with a control stick. The vehicle is "thinking and reacting" all by itself in that video, even during taxi. The X-47B will even have various contingency modes where, when something goes wrong, it can figure out what to do and where to go....for example, if it loses all communications with the ground station that controls it, it is smart enough to know where to divert to and land all by itself.

Some of the most fun stuff I have ever worked on!
Ray
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Re: Pratt & Northrop Success

Postby longhaircowboy » Thu Mar 26, 2009 10:33 pm

I saw that yuotube vid, pretty cool stuff. Man, wish I had a job like that.
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