SpaceX in launch of 52 Starlink satellites reuses a 1st stage for the 11th time
Capitalism in space: SpaceX early this morning successfully launched another 52 Starlink satellites into orbit, reusing a Falcon 9 first stage for a record-setting 11th time.
The booster landed successfully on a drone ship in the Pacific, and can now be used again. This success adds weight to the company’s claim a few years ago that the final iteration of the Falcon 9 first stages have the potential for as many as 100 launches. SpaceX has now proven that the stage can fly more than ten times, and still be reused.
This launch also extended SpaceX’s record for the most launches ever by a private company in a single year.
The leaders in the 2021 launch race:
48 China
29 SpaceX
22 Russia
6 Europe (Arianespace)
5 ULA
5 Rocket Lab
China now leads the U.S. 48 to 46 in the national rankings. However, the race to see which country will end up with the most launches is getting tighter. SpaceX has another two launches scheduled in the next three days, with a Virgin Orbit launch following the next day.
This launch was the 125th in 2021, making it the sixth most active year in rocketry since Sputnik. Should those four launches above all succeed, it will be the second most active year, with an outside chance of beating the record of 132 launches from 1975.
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 or from any other book seller. If you want an autographed copy the price is $60 for the hardback and $45 for the paperback, plus $8 shipping for each. Go here for purchasing details. 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
Capitalism in space: SpaceX early this morning successfully launched another 52 Starlink satellites into orbit, reusing a Falcon 9 first stage for a record-setting 11th time.
The booster landed successfully on a drone ship in the Pacific, and can now be used again. This success adds weight to the company’s claim a few years ago that the final iteration of the Falcon 9 first stages have the potential for as many as 100 launches. SpaceX has now proven that the stage can fly more than ten times, and still be reused.
This launch also extended SpaceX’s record for the most launches ever by a private company in a single year.
The leaders in the 2021 launch race:
48 China
29 SpaceX
22 Russia
6 Europe (Arianespace)
5 ULA
5 Rocket Lab
China now leads the U.S. 48 to 46 in the national rankings. However, the race to see which country will end up with the most launches is getting tighter. SpaceX has another two launches scheduled in the next three days, with a Virgin Orbit launch following the next day.
This launch was the 125th in 2021, making it the sixth most active year in rocketry since Sputnik. Should those four launches above all succeed, it will be the second most active year, with an outside chance of beating the record of 132 launches from 1975.
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 or from any other book seller. If you want an autographed copy the price is $60 for the hardback and $45 for the paperback, plus $8 shipping for each. Go here for purchasing details. 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
Mr Z, there is another minor milestone here that should be noted.
It requires a little math.
The Space Shuttle (STS) system had 135 Launches, with 1 launch failure, and overall two vehicles lost, with the tragic loss of both crews.
So 134 successful launches. 133 successful missions.
The Falcon9 rockets, starting with the 1.0, through the final variants have 132 launches, with one launch failure. (not counting the AMOS-6, lost in pre-flight static fire test), That is 131 successful launches.
There have been 3 Falcon Heavy Launches, zero failures.
So the total for the Falcon9 system is 134 successful launches.
So in terms of launch success, the two systems are tied. They will surpass this year, if either of the two planned launches take place.
Side note, they have 98 successful landing with today’s mission, out of 109 attempts. If they get both launches before year end, they may hit 100 landings this year.
The system has a long way to go before it even gets close to the number of people delivered into space, compared to the STS. It may never, at a pace of 3 at a time. They are only up to 18. The Titan had 20 (Project Gemini, counting repeated astronauts) and Saturn Rocket has 45 (Apollo, also counting repeats).
If Starship becomes active as a manned launch vehicle as intended, it may be moot.
Left out an important factor. STS was flying for 30 years. Falcon 9 system only 11.
Keep on Sippen….
Good Work Sir!
And think about engine run time as well.
SpaceX runs 9 engines for about 2.5 minutes. Then the upper stage for about 8.
About 30 min of engine run time a mission.
Shuttle ran two SRBs for 2.5 minutes or so and 3 engines for 8 or so minutes.
About 29 min.
(I know those numbers are not quite correct).
But this tells us that Merlin has reached the same level of flight time, many many of them reused many times, in 11 years to Shuttles’ 30. Well done indeed.
Raptor is gonna smash that record very fast.
I thought of 1975 as a “blah” year.
Skylab flights?
geoffc,
You brought up something that has been a mystery to me for years. How many Space Shuttle Main Engines (SSME) were built? When talk about Ares-V, now SLS designs were going to re-use the SSME, I wondered how many existed. Some sources have quoted 30 and some websites have quoted as many as 70. So far the number I have seen is 51, including the six lost on Challenger and Columbia.
I am including the Block I, II, and IIA engines in my count. The serial numbers were never contiguous, but I figured that had something to do with the different block numbers or failures due to testing.
Thanks to you and sippin_bourbon for those numbers. A stat I have heard being kicked around is the turn around time on those engines for the Falcon-9 is 51 days and the fastest turnaround time for the SSME was 54 days. I remember there was talk of getting the Merlin’s turn around time to two weeks!
Isn’t the top year 1967, with 139 launches?
https://www.spacelaunchreport.com/logyear.html
I thought of 1975 as a “blah” year.
Skylab flights?
Most of the launches in 1975 were Soviet (89). Mainly, they were intel birds.
Their milsats were short-lived back then, so they had to keep a high tempo of replacement launches going.
Richard M: I suspect the difference is that I only count successful launches, and the launch report probably counts all launches.
A quick and dirty look see yeilds from collectSpace the following post. ????
posted 09-06-2006 03:58 PM Click Here to See the Profile for Robert Pearlman Click Here to Email Robert Pearlman Edit/Delete Message Reply w/Quote
Pratt & Whitney have a few hand-outs at the KSC Press site, one of which was prepared specifically for STS-115. In the booklet appears the following:
Since the first Space Shuttle launch on April 12, 1981, 42 different SSMEs have successfully demonstrated the performance, safety, and reliability of the world’s only reusable liquid-fuel rocket engine.
There is also a chart that shows which mission(s) the 42 engines have flown (for a total of 348 “engine flights”).
And from Wiki.. if you trust them as much as Google? 46 Engines built.
After each flight the engines would be removed from the orbiter and transferred to the Space Shuttle Main Engine Processing Facility (SSMEPF), where they would be inspected and refurbished in preparation for reuse on a subsequent flight.[29] A total of 46 reusable RS-25 engines, each costing around US$40 million, were flown during the Space Shuttle program, with each new or overhauled engine entering the flight inventory requiring flight qualification on one of the test stands at Stennis Space Center prior to flight.[27][30][31]
Kraft didn’t seem to like all the tearing down, IIRC.
SuperHeavy engine inspection isn’t going to be easy either.
Alton,
I stay away from Wikipedia, and I still have the link to the website from decades ago for the serial numbers here. Surprised the link still exists!.
Looks like our numbers are close. In my count I also accounted for the test engines that are at Stennis: #2060 and 2061. The three engines built after Columbia: #2057 – #2059. Plus there were #2107 and #2109 have flown, they were converted/upgraded engines.