Liquid Rocket Engines (J-2X, RS-25, general)

2012
Here is the list of entries for Liquid Rocket Engines (J-2X, RS-25, general) based on the selected criteria.

Inside The J-2X Doghouse: Performance Measurement, Part 2 of 2 Oct 16, 2012 08:35:18 AM | William D. Greene
 
How do you measure "push," or in other words, force? The simple answer can be found through one of the most frightening household appliances any of us own: The dreaded bathroom scale…
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Inside The J-2X Doghouse: Performance Measurement, Part 1 of 2 Sep 14, 2012 09:28:12 AM | William D. Greene
 
My first job after graduate school it was doing test data reduction and performance calculations for the Space Shuttle Main Engine. How cool is that? Trust me: very cool.
9 Comments › Permalink

Inside The J-2X Doghouse: Beyond the Gas Generator Cycle Aug 08, 2012 10:03:57 AM | William D. Greene
 
Okay, I admit it: I'm a sucker for the Olympics. I watch with rapt attention to sporting events that I would otherwise never consider viewing other than under the once-every-four-years heading of the Olympics. Why is that?
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J-2X Progress: Once Upon a Time at Stennis... Jul 09, 2012 03:24:23 PM | William D. Greene
 
Nobody ever tells an interesting story where nothing happens.
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J-2X Extra: Human-Rated Chili Jun 27, 2012 09:34:58 AM | William D. Greene
 
I make a mean vegetarian chili, but you can be sure that it will be different every single time that I make it since it’s always from memory and my memory ain’t what it used to be. I wing it. And that’s fun. So, what does my free-form chili cooking this have to do with J-2X?
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J-2X Extra: What's in a Name? Aug 08, 2012 10:07:48 AM | William D. Greene
 
It's been over six years since I started working on the J-2X development effort. Throughout that entire period, whenever I get the chance to talk to people outside of our small, internal rocket engine community (…for very understandable reasons, they don't let us out much), the single, most frequent, recurring, and ubiquitous question that I hear is something along the lines of this...
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Welcome to the J-2X Doghouse: All a Matter of Balance -- and Power May 15, 2012 09:41:34 AM | William D. Greene
 
One of the most important analytical tools used in development of a rocket engine is called a "power balance."
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J-2X Progress: Two Stands Occupied Apr 24, 2012 02:13:10 PM | William D. Greene
 
It's been awhile since I've had the opportunity to update what we've been doing for the J-2X development test campaign. So, everyone is probably wondering where we stand.
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Welcome to the J-2X Doghouse: Old Dogs, New Tricks Mar 27, 2012 07:50:37 AM | William D. Greene
 
Considering the many brilliant and knowledgeable people with whom I have the privilege of working here at NASA, I've come to accept the conclusion that there is a lot more stuff to know than can ever be learned.
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Welcome to the J-2X Doghouse: Twist and Shout...and Steering Mar 05, 2012 05:11:37 PM | William D. Greene
 
Put a little kid into the driver's seat of a car and what's the first thing they do? They grab the steering wheel and twist. Twisting the steering wheel back and forth is just about the most intuitive, intrinsic sense of "driving" I can imagine. Now think of a launch vehicle blasting off the pad. Other than for some extreme, emergency conditions, there is nothing that stands in for the steering wheel on a launch vehicle during ascent. Without a steering wheel, per se, how does steering happen?
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J-2X Progress: Getting All Spun Up Feb 21, 2012 02:49:56 PM | William D. Greene
 
Testing at night is always so much more dramatic.
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J-2X Progress: The Next Phase for E10001 Feb 03, 2012 11:27:13 AM | William D. Greene
 
Things move on. The same is true for J-2X. Last year was momentous for our project but now things move on and the life of our good friend E10001 enters its next phase.
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