The last cargo Dragon to berth with ISS using robot arm
Astronauts yesterday used the robot arm on ISS to berth SpaceX’s cargo Dragon freighter, the last time a Dragon capsule will be berthed to the station in this manner.
The successful supply deliver marked the 20th time a SpaceX Dragon cargo capsule has arrived at the space station since May 2012. The mission, known as CRS-20 or SpaceX-20, also the final flight of SpaceX’s first-generation Dragon spacecraft, which the company is retiring in favor of a new Dragon capsule designed to dock directly with the space station without needing to be captured by the robotic arm.
I could put this another way that is more embarrassing to NASA. After twenty flights, the agency has finally admitted that SpaceX can design a spacecraft that can do automatic dockings, and is now willing to allow it.
That of course is a gross simplification. Nonetheless, the successful unmanned demo flight last year of SpaceX’s crew Dragon, docking directly with ISS, has proven SpaceX can do it. And since that crew Dragon is essentially the same design for SpaceX’s future cargo Dragons, it makes sense to shift from robot-arm-berthing to direct docking for all future Dragon flights.
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Your help allows me to do this kind of intelligent analysis. I take no advertising or sponsors, so my reporting isn't influenced by donations by established space or drug companies. Instead, I rely entirely on donations and subscriptions from my readers, which gives me the freedom to write what I think, unencumbered by outside influences.
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Astronauts yesterday used the robot arm on ISS to berth SpaceX’s cargo Dragon freighter, the last time a Dragon capsule will be berthed to the station in this manner.
The successful supply deliver marked the 20th time a SpaceX Dragon cargo capsule has arrived at the space station since May 2012. The mission, known as CRS-20 or SpaceX-20, also the final flight of SpaceX’s first-generation Dragon spacecraft, which the company is retiring in favor of a new Dragon capsule designed to dock directly with the space station without needing to be captured by the robotic arm.
I could put this another way that is more embarrassing to NASA. After twenty flights, the agency has finally admitted that SpaceX can design a spacecraft that can do automatic dockings, and is now willing to allow it.
That of course is a gross simplification. Nonetheless, the successful unmanned demo flight last year of SpaceX’s crew Dragon, docking directly with ISS, has proven SpaceX can do it. And since that crew Dragon is essentially the same design for SpaceX’s future cargo Dragons, it makes sense to shift from robot-arm-berthing to direct docking for all future Dragon flights.
Readers!
Please consider supporting my work here at Behind the Black. Your support allows me the freedom and ability to analyze objectively the ongoing renaissance in space, as well as the cultural changes -- for good or ill -- that are happening across America. Fourteen years ago I wrote that SLS and Orion were a bad ideas, a waste of money, would be years behind schedule, and better replaced by commercial private enterprise. Only now does it appear that Washington might finally recognize this reality.
In 2020 when the world panicked over COVID I wrote that the panic was unnecessary, that the virus was apparently simply a variation of the flu, that masks were not simply pointless but if worn incorrectly were a health threat, that the lockdowns were a disaster and did nothing to stop the spread of COVID. Only in the past year have some of our so-called experts in the health field have begun to recognize these facts.
Your help allows me to do this kind of intelligent analysis. I take no advertising or sponsors, so my reporting isn't influenced by donations by established space or drug companies. Instead, I rely entirely on donations and subscriptions from my readers, which gives me the freedom to write what I think, unencumbered by outside influences.
You can support me either by giving a one-time contribution or a regular subscription. There are four ways of doing so:
1. Zelle: This is the only internet method that charges no fees. All you have to do is use the Zelle link at your internet bank and give my name and email address (zimmerman at nasw dot org). What you donate is what I get.
2. Patreon: Go to my website there and pick one of five monthly subscription amounts, or by making a one-time donation.
3. A Paypal Donation or subscription:
4. Donate by check, payable to Robert Zimmerman and mailed to
Behind The Black
c/o Robert Zimmerman
P.O.Box 1262
Cortaro, AZ 85652
You can also support me by buying one of my books, as noted in the boxes interspersed throughout the webpage or shown in the menu above.
After how many years and Space X comes along and figures it out in no time.
Am I correct that the biggest PLUS for having Crew Dragon auto dock to the station is that
#1 The astronauts can spend their time doing other experiments on the station and don’t need to be pulled away to berth the Dragon capsule
#2 is there some sort of orbit altering effect when the berthing arm moves that much mass closer to the station?
Auto docking is just safer.
The computer is faster than the human.
Plus it allows for emergency docking in case no one is conscious.