SpaceX is set to begin the countdown tonight for a May 22nd launch of Falcon 9/Dragon.
SpaceX is set to begin the countdown tonight for a 3:44 am (Eastern) May 22nd launch of Falcon 9/Dragon.
Tag: engineering
Bridge Day rappel
An evening pause: Bridge Day 2011: An 800+ foot rappel from the New River Gorge Bridge in West Virginia. The event is held each fall, when they close the bridge to vehicles so pedestrians, base jumpers, and rappellers can enjoy it. I’ve done this rappel four times, twice as part of the safety team.
On the clip below, the rappel itself begins at 3:40. As this was this guy’s first rappel on the bridge, he takes it very slow, which is okay as it gives him time to enjoy the view.
The world’s most dangerous bridge?
An evening pause: A different kind of bridge, located in Russia and one that I wouldn’t speed across. Built originally as a railroad bridge to cross the Vitim River, it is 1870 feet long and about 50 feet above the water. Note how many of the cross planks are not attached.
SpaceX has reported that they have found the cause of the Falcon 9 launch abort this morning.
In an email update, SpaceX reports that they have found the cause of the Falcon 9 launch abort this morning.
During rigorous inspections of the engine, SpaceX engineers discovered a faulty check valve on the Merlin engine. We are now in the process of replacing the failed valve. Those repairs should be complete tonight. We will continue to review data on Sunday. If things look good, we will be ready to attempt to launch on Tuesday, May 22nd at 3:44 AM Eastern.
If this is true, than this entire exercise is an unqualified success and illustrates a certain robustness to SpaceX’s engineering on Falcon 9. Their control computer during the launch process spotted the problem before it caused a complete loss of the vehicle and payload. They can now locate the problem, fix it, and proceed with launch.
Some thoughts on the scrub
Last night Falcon 9’s computers shut the launch down at T minus zero seconds after sensing a high chamber pressure in one first stage engine.
Two thoughts, one good, one not so good.
» Read more
Falcon 9 aborted its launch tonight at 4:55 am (Eastern) at T minus zero seconds.
No go: Falcon 9 aborted its launch tonight at 4:55 am (Eastern) at T minus zero seconds.
Just after ignition there was a shutdown. They were able to make the vehicle safe, and are trying to figure out what happened. It appears there was a high pressure reading in one engine.
The next opportunity to launch is three days hence, though whether they will go for it then depends on whether they can figure out what caused the shutdown.
Update: More details here.
Duct tape suspension bridge built by the students of Dublin High School Engineering and Design Academy in California
An evening pause: You can build anything out of duct tape!
WhiteKnightTwo made its 80th flight yesterday.
The competition heats up: WhiteKnightTwo made its 80th flight yesterday.
Falcon 9 is now upright on launchpad
Falcon 9 is now upright on launchpad for tomorrow morning’s 4:55 am (Eastern) launch. For continual updates, go here.
Japan today launched its first commercial satellite.
The competition heats up: Japan today launched its first commercial satellite.
“The Eagle has crashed.”
What might have been: “The Eagle has crashed.”
Building a spaceship engine fueled by antimatter.
Building a spaceship engine fueled by antimatter.