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 31 
 on: Yesterday at 07:31:01 PM 
Started by Howard Rush - Last post by Duke.Johnson
Sorry Randy, but Howard is funny! Layingdown

 32 
 on: Yesterday at 07:22:22 PM 
Started by Andrew Tinsley - Last post by Bob Heywood
Lord Kelvin did marry.

But, he did err on a few things, especially considering the subject of this particular thread.

"I am afraid I am not in the flight for “aerial navigation”. I was greatly interested in your work with kites; but I have not the smallest molecule of faith in aerial navigation other than ballooning or of expectation of good results from any of the trials we hear of. So you will understand that I would not care to be a member of the aëronautical Society."

                                                                                              ~ Lord Kelvin

 33 
 on: Yesterday at 07:16:46 PM 
Started by Brian Massey - Last post by Brett Buck
The new propellant grain they were using had been tested on the ground up through full duration firings.  The new grain was a plastic that eliminated some issues they had with the original synthetic rubber propellant.  At this point its hard to tell if the engine or oxidizer tank failed.  Either way its a sad ending to a unique plane and the loss of a good pilot.

  If you read the reports on the nitrous oxide handling from the ground test accident, the grain was not implicated, it was decomposition of the nitrous due to water-hammer. Combustion instability can be a tricky business, you can test it 200 times and it might not go unstable until 201. Of course we don't know and may not ever know what the real problem was.

  There's a reason, Burt, why NASA has hundreds of thousands of pages of rules and analysis.

    Brett

 34 
 on: Yesterday at 07:10:17 PM 
Started by Allen Goff - Last post by peabody
The only OLD Super Ring that I have seen was something that Pat Frangella drug by....as I recall, it had "C" tube construction?

 35 
 on: Yesterday at 06:58:09 PM 
Started by Steve Fitton - Last post by Steve Fitton
Looks like you can add one more to your collection courtesy of Virgin Galactic.

At least Orbital's mishap did not get anyone hurt or killed.  Rutan's people have a real tragedy on their hands out there at Mohave.

 36 
 on: Yesterday at 06:55:24 PM 
Started by Brian Massey - Last post by Steve Fitton
The new propellant grain they were using had been tested on the ground up through full duration firings.  The new grain was a plastic that eliminated some issues they had with the original synthetic rubber propellant.  At this point its hard to tell if the engine or oxidizer tank failed.  Either way its a sad ending to a unique plane and the loss of a good pilot.

 37 
 on: Yesterday at 06:53:00 PM 
Started by Steve Helmick - Last post by Steve Scott
Things are much worse now than they were 2 years ago.

Pretty interesting that the Federal Reserve has ended their $85b/month stimulus if things are truly much worse now than they were 2 years ago.
Do you read their Beige Book?  The Board of Governors publishes a composite summary and each of the 12 FRB publishes one for their respective districts.  They are compiled from direct surveys of business owners and they paint a bit rosier picture than you're trying to convey.

George Bush's Treasury Secretary was former Goldman Sachs CEO Henry (Hank) Paulson.  He wrote a book detailing the financial crash of 2008 called On the Brink.  It was a candid look at how rapidly and totally everything was deteriorating during the fall of 2008.  His and FRB Chairman Tim Geithner's testimony before Congress scared them enough that an emergency bi-partisan series of acts were quickly passed.

Former FRB Governor and conservative economist Randall Kroszner wrote a paper summarizing an in-depth study of the effects of the much-maligned Community Reinvestment Act and the subsequent subprime loan crisis.

Statistics can be used to substantiate virtually any argument one wants to make.

I'm truly sorry if you personally haven't benefited from the recovery but in reality, we're in pretty good shape.  Certainly in much better shape than the rest of the planet.

 38 
 on: Yesterday at 06:51:22 PM 
Started by Howard Rush - Last post by Howard Rush
Powell paints using sparkles and pearls
Like the clothing you see on young girls.
He won't fly his plane
For fear it will rain
And loosen his carefully set curls.

 39 
 on: Yesterday at 06:49:57 PM 
Started by John Rist - Last post by John Cralley
This may help.

http://m.instructables.com/id/How-to-Wind-a-12N-14P-Brushless-Outrunner/

 40 
 on: Yesterday at 06:38:38 PM 
Started by Brian Massey - Last post by Tim Wescott
Stuff happens. Untested? Depends on how you look at it, I guess.

They were doing testing, so "not fully tested" is kind of a given.  Given the players, there had to have been lots of ground testing, and they had the misfortune to uncover a problem that wasn't evident on the ground, or there was some garden-variety screwup in the engine installation or maintenance.

Hopefully the thing was instrumented well enough that the life lost and the serious injuries to the other guy weren't in vain.

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