File:Falcon 9 Booster (2997226647).jpg
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[edit]DescriptionFalcon 9 Booster (2997226647).jpg |
The Falcon 9 booster tank is made of aluminum lithium alloy. Welding it without forming hydrogen bubbles is tricky. SpaceX uses friction stir welding throughout. I had to crop the welding jig from the photo because of ITAR restrictions. Let me just say that it is very clever, and the challenges are like building a ship in a bottle. I have also collected some interesting details on the Falcon 1 flights so far: Flight 1: The booster engine cutoff early, and the rocket went only one mile up. The video of what happened next has not been seen outside SpaceX. Without stage separation, the whole rocket tumbled back to crash 300 ft. from the launch pad, causing a gigantic fireball. There are no people on the atoll during launches, but there were plenty of cameras catching the action, and the smoke that enveloped the entire launch area. The remains of the rocket were collected from the reef at low tide. Flight 2: Programming mistake in the upper stage led to improper feedback control loops and it wobbled out of control. Flight 3: While the lack of stage separation has been discussed, it is a bit more interesting. The upper stage ignited inside of the interstage coupler... and that destroyed the fragile upper stage bell (which is as thin as a Coke can). Flight 4: Perfect flight, but ironically, the first without a real payload. The Malaysians sat this one out, and will fly their satellite in Flight 5. The dummy payload in this flight was machined aluminum with a realistic mass profile and was named the RATsat after the initials of the employees who cranked it out over a weekend. After entering orbit, they restarted the sustainer motor, a capability test that was not pre-announced. [Update: This post and text were before I had any involvement with SpaceX. And the subsequent Flight 5 was a total success, with accurate satellite deployment] Flight 4 is memorialized in the Space X Music Video. I gotta fly now… on a day trip to China… |
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Date | Taken on 15 October 2008, 11:42 | ||
Source | Falcon 9 Booster | ||
Author | Steve Jurvetson from Los Altos, USA | ||
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This image was originally posted to Flickr by jurvetson at https://flickr.com/photos/44124348109@N01/2997226647. It was reviewed on 13 December 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
13 December 2020
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current | 13:56, 13 December 2020 | ![]() | 3,961 × 2,905 (3.55 MB) | Eyes Roger (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Camera manufacturer | Canon |
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Camera model | Canon EOS 5D |
Exposure time | 1/20 sec (0.05) |
F-number | f/2.8 |
ISO speed rating | 320 |
Date and time of data generation | 11:42, 15 October 2008 |
Lens focal length | 16 mm |
JPEG file comment | AppleMark |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | QuickTime 7.5.5 |
File change date and time | 15:31, 18 October 2008 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 11:42, 15 October 2008 |
Meaning of each component |
|
APEX shutter speed | 4.375 |
APEX aperture | 3 |
APEX exposure bias | 0 |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 3,086.925795053 |
Focal plane Y resolution | 3,091.2951167728 |
Focal plane resolution unit | inches |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Scene capture type | Standard |