Falcon Heavy static fire test delayed one day
SpaceX has rescheduled the launchpad static fire test of its first Falcon Heavy rocket 24 hours, with a test window beginning at 1 pm Eastern.
On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.
The print edition can be purchased at Amazon. from any other book seller, or direct from my ebook publisher, ebookit.
The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.
The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News
SpaceX has rescheduled the launchpad static fire test of its first Falcon Heavy rocket 24 hours, with a test window beginning at 1 pm Eastern.
On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.
The print edition can be purchased at Amazon. from any other book seller, or direct from my ebook publisher, ebookit. The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.
The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News
Speaking of testing. Considering the cost of a BFR, how will they get the bugs out without losing one?
Q:
Do they load 100% of the fuel, for this test?
@Wayne: That is the goal. 100% of the fuel/oxidizer. Part of the test is to see if they can supercool enough LOX/RP1 and move it in suffiicient time to be able to launch.
@ken I don’t know if they’ll get the bugs out without losing one. But given that they probably won’t have launch contracts to use for testing, and based on what I recall from Elon’s comments, I believe they’ll be doing much more incremental testing than they did with Grasshopper and Falcon 9R. It actually sounded like Jerry Pournelle’s recommendation – fly it some, land it, fly it a little farther/faster, land it, etc.
If they outfit a prototype or 2 with strain gauges and sensors, and gradually increase the stresses by boosting acceleration/velocity/temperature, they _should_ have a good idea as to what safety margins are available, and whether they can push to the next level at low risk.
https://www.jerrypournelle.com/jerrypournelle.c/slowchange/dcx4.html