|
#1
|
||||
|
||||
Floating F9 first stage (links)
Hello All,
“A funny thing happened after the GovSat 1 launch on Wednesday” (see: http://spaceflightnow.com/2018/01/3...-status-center/ and http://spaceflightnow.com/2018/01/3...alcon-9-rocket/ ), and: The Falcon 9’s first stage, which did not land on the drone ship but tested a very high thrust three-engine landing burn, survived its water landing, and Elon Musk has tweeted that they will try to tow it back to port. Here (see: http://spaceflightnow.com/2018/01/3...tellite-launch/ and http://finance.yahoo.com/news/space...-010302734.html ) are articles with photographs of the floating first stage, which is riding high in the water.
__________________
Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see: http://www.lulu.com/content/paperba...an-form/8075185 http://www.lulu.com/product/cd/what...of-2%29/6122050 http://www.lulu.com/product/cd/what...of-2%29/6126511 All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com. NAR #54895 SR |
#2
|
||||
|
||||
What is the high thrust landing for? The thing pretty much stops on a dime already.
__________________
I love sanding. |
#3
|
||||
|
||||
Quote:
My guess is using a very short three-engine landing burn might use less propellant than their current three-engine landing burn, which could allow them to successfully recover Falcon 9 first stages (and/or maybe Falcon Heavy side or core boosters?) after launching heavier payloads. (A few of their first stages essentially "landed on fumes" after lofting heavier geosynchronous satellites; on those launches, they played down the chances of successful landings because the very tight landing propellant reserves left no margin for error, wind-correction, or slight engine under-performance.) On one of those "Hail Mary" landings, it appeared that the first stage might have run dry, but just low enough that it barely stuck the drone ship landing successfully (that was the one where all--or nearly all--of the crush-able landing leg strut cushioning material was compacted).
__________________
Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see: http://www.lulu.com/content/paperba...an-form/8075185 http://www.lulu.com/product/cd/what...of-2%29/6122050 http://www.lulu.com/product/cd/what...of-2%29/6126511 All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com. NAR #54895 SR |
Thread Tools | Search this Thread |
Display Modes | |
|
|