SpaceX Falcon 9

Автор ATN, 08.09.2005 20:24:10

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tnt22

ЦитироватьScott Murray‏ @Restrantek 9 июл.

BREAKING: #SpaceX stage arriving now at the space center. #Falcon9

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tnt22

ЦитироватьMr. Steven‏ @FairingCatcher 1 ч. назад

I got me a new net for some sky fishing By kegman83 on reddit  ;)


tnt22

ЦитироватьJulia‏ @julia_bergeron 3 ч. назад

Mr Steven returning to port after a test run with the new net today. #SpaceXFleetWest : Suzy Ellis


tnt22

ЦитироватьSpaceX‏Подлинная учетная запись @SpaceX 11 мин. назад

Mr. Steven—now with more net. SpaceX's fairing recovery vessel has been fitted with a 4x larger net ahead of its next recovery attempt targeted for later this month. http://instagram.com/p/BlLYeNnFZNA/ 


KBOB



Когда твою идею с батутом украл какой-то Алан Маск
Россия больше чем Плутон.

Виктор Левашов


opinion

ЦитироватьВиктор Левашов пишет:
Не о РН, но о Маске:
 https://vz.ru/opinions/2018/7/13/932352.html
Это в черной дыре обсуждается.
There are four lights

Raul

ЦитироватьВиктор Левашов пишет:
Не о РН, но о Маске:
А вообще спасибо, прочитал рассказы, хоть и оффтоп  :)
Земля не может, не может не вращаться,
А мур не может, не может не мурчать!

KBOB

#18368
ЦитироватьВиктор Левашов пишет:
Не о РН, но о Маске:
 https://vz.ru/opinions/2018/7/13/932352.html
Опасная грань заключается в том, что Маск предложил спасать детей "не по инструкциям тайского МЧС". Мне в детстве попалась книга "катастрофы в морских глубинах", так вот, там была такая мысль, что если спасаешь подводников из затонувшей ПЛ по инструкции и не спас, то все нормально - "она утонула" (С), а если не по инструкции действовал и не спас, то именно в этом и была причина не удачи.
https://flot.com/publications/books/shelf/narusbaev/

Маск - новатор, он не привык действовать "по инструкции" и это вопреки всему приводило его к успеху, между делом разрывая шаблоны у бюрократов всех уровней, блюстители инструкций не приминули воспользоваться случаем уязвить Маска за нарушение инструкций в очередной раз.
Россия больше чем Плутон.

Alex_II

ЦитироватьKBOB пишет:
Мне в детстве попалась книга "катастрофы в морских глубинах", так вот, там была такая мысль, что если спасаешь подводников из затонувшей ПЛ по инструкции и не спас, то все нормально - "она утонула" (С), а если не по инструкции действовал и не спас, то именно в этом и была причина не удачи.
Это подход любых ТБ-шников вообще. Если что-то сделано не по инструкции - значит причина инцидента именно в этом... Я помню читал информационное сообщение по ТБ на работе, где утверждалось что причина падения помбура с мостков - в том, что на его работы не был выписан наряд - допуск... Хотя вообще-то на то, чем там помбур занимался (трубы откатывал) - сроду никаких наряд-допусков не требовалось...
И мы пошли за так, на четвертак, за ради бога
В обход и напролом и просто пылью по лучу...

Max Andriyahov

Конструкция нового батута на Мр.Стивен чем-то очень напоминает "ножки" для приземления у первой ступени Фалкон-9

tnt22

ЦитироватьPauline Acalin‏ @w00ki33 4 ч. назад

Looking more and more ready for Iridium-7 fairing recovery this month! #mrsteven #spacex


Alex_II

ЦитироватьMax Andriyahov пишет:
Конструкция нового батута на Мр.Стивен чем-то очень напоминает "ножки" для приземления у первой ступени Фалкон-9
Ага. У меня даже мелькнула мысль - не из них ли сделано?
И мы пошли за так, на четвертак, за ради бога
В обход и напролом и просто пылью по лучу...

tnt22

https://www.teslarati.com/spacex-mr-steven-spotted-sea-trialing-net-fairing-catch-debut/
ЦитироватьSpaceX's Mr Steven spotted in high-speed test at sea with upgraded net

By Eric Ralph
Posted on July 17, 2018

SpaceX's newly-outfitted recovery vessel Mr Steven was recently captured conducting aggressive maneuvers off the coast of Port of Los Angeles, just days after the vessel's massive new arms and net were installed for the first time. The intense pace of upgrades and acceptance testing confirm beyond any reasonable doubt that SpaceX does not intend to waste its next Falcon 9 fairing recovery attempt, set to accompany the July 25th launch of Iridium-7.
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The iconic fairing recovery vessel has – for the past three or four weeks – been undergoing major upgrades to its arms or claws, as well as a massive, new net spanning nearly 0.9 acres (3700 m²). With what appears to be a genuine fourfold increase in usable area for fairing recoveries, SpaceX likely has a very strong chance of actually pulling off its first successful catches and reuses of Falcon 9 payload farings, valued at roughly 5% of the rocket's cost ($3 million per a $60 million base price) per half. Manufacturing cost and price to the customer are difficult to compare, but it at least offers a hint of the full cost of each ~800 kg segment of carbon fiber and aluminum honeycomb.


Mr Steven seen just after a day spent conducting sea-trials a few miles offshore, July 14. (Pauline Acalin)

Based on photos and video captured between July 12 and 15, Mr Steven's crew and recovery technicians appeared to waste no time at all leaping fr om arm and net installation to sea-trials of the new hardware at least as extreme as anything previously observed from the SpaceX-leased vessel. Less than half an hour after leaving the harbor for the first time since his massive new arms arrived, Marinetraffic tracking data showed that Mr Steven was already performing aggressive turns and sprints at speeds up to 20 knots (~25 mph), fairly impressive given the vessel's 200 foot (62 meter) length and gross weight of nearly 200,000 pounds (82,000 kg).

While this may seem impressive, Mr Steven is a class of ship known as a Fast Supply Vessel (FSV) designed to routinely transport a full 400 metric tons of cargo on its deck at cruising speeds of 23 knots (27 mph), which means that the only thing Mr Steven's wildly expansive arms likely challenge is the vessel's center of gravity (balance), hence the follow-up tests with hard turns at high speed.

Also of interest, an extraordinary video of some of that testing – unofficially captured, somehow, by drone – showed the ship aggressively maneuvering in reverse, an ability that could come in useful during recovery attempts if the expanded net's coincidental protection of Mr Steven's cockpit means that it can become a less fixed element, actively seeking out falling fairings to help close the gap on each parasailing half's 50 meter error margin.


Mr Steven makes some serious waves, using his pod thrusters to strafe backwards at 5-10 knots. (anonymous)


It's subtle, but a small plus sign appears to 'mark the spot' on Mr Steven's new net, stretching roughly 60×60 meters. (anonymous)


Mr Steven shows off the fancy new rigging of that upgraded net. (Pauline Acalin)

ANOTHER OPPORTUNITY FAST APPROACHES

Previously scheduled for July 20, Iridium's NEXT 7 multi-satellite launch was pushed back a handful of days to July 25 to give SpaceX engineers and technicians additional time to prepare what is the company's third Block 5 Falcon 9 to roll off its Hawthorne, CA assembly line. While suboptimal for the customer and for SpaceX's manifest, that slight delay very likely padded slim schedule margins for Mr Steven's major arm upgrades, meaning that the vessel will now be able to participate in the imminent launch's recovery operations. After the first flightworthy vehicle's debut in May 2018, SpaceX's rocket production has ramped up in quite an extreme fashion, jumping from four first stages produced in six months to another three or four boosters completed and tested in Texas in just two months.

While the transportation of Falcon fairings and upper stages is far harder to keep track of, production of those critical components of the rocket have also reached throughput levels that are new territory for SpaceX, including an impressive statistic of an average of one full Merlin 1D rocket engine manufactured daily according to an individual with experience on the factory floor.

The Block 5 iteration of the workhorse SpaceX vehicle is in many ways a wholly new rocket, featuring an array of upgrades that include new heat shielding at the rocket's base, interstage, and legs; retractable landing legs, upgraded Merlin 1D engines, and a clean-sweep refresh of the vehicle's avionics, to name just a handful of the major changes included.


SpaceX technicians wrench on a trio of varied Merlin 1Ds in McGregor, Texas, wh ere every single engine is test-fired before being attached to a Falcon 9. (SpaceX)
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opinion

ЦитироватьAlex_II пишет:
ЦитироватьMax Andriyahov пишет:
Конструкция нового батута на Мр.Стивен чем-то очень напоминает "ножки" для приземления у первой ступени Фалкон-9
Ага. У меня даже мелькнула мысль - не из них ли сделано?
По фотографиям трудно оценить масштаб. На самом деле размер сети примерно такой же, как размер корабля-дрона, на который садится первая ступень.
There are four lights


tnt22

https://www.teslarati.com/spacex-falcon-9-largest-commercial-satellite-launch/
ЦитироватьSpaceX delivers largest commercial satellite in kick off of Falcon 9 marathon

By Eric Ralph
Posted on July 22, 2018

SpaceX has successfully completed its 13th launch of 2018, kicking off a marathon of three new Falcon 9 Block 5 booster debuts with the launch of the Telstar 19V communications satellite, potentially breaking the record for the largest commercial satellite ever launched at 7000 kg (15,500 lb).

Despite the heft of its payload and partially thanks to a slightly lower parking orbit for the satellite, Falcon 9 booster B1047 – the second Block 5 booster to roll off the assembly line – managed to successfully land aboard the autonomous spaceport drone ship (ASDS) Of Course I Still Love You (OCISLY), stationed approximately 650 km (400 mi) off the Florida coast at launch time.
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While the booster was unable to maintain a live video feed through its high-speed reentry and Atlantic landing, SpaceX's cameras on OCISLY managed to reconnect a few seconds after touchdown to show the 50-meter (160-foot) tall rocket safely resting on the drone ship. As the webcast host noted, Falcon 9 Block 5 features a number of prominent upgrades designed to enable levels of reusability and reliability essentially unprecedented in the world of orbital rocketry.


B1047 created an extraordinary ring vortex rainbow as it smashed through Max Q, the point of highest aerodynamic stress on the rocket. (Tom Cross)


B1047 before the launch of Telstar 19V. (Tom Cross)


B1047 before the launch of Telstar 19V. (Tom Cross)


B1047 before the launch of Telstar 19V. (Tom Cross)
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ROCKET TRIALS

Now more than two months after the first Block 5 booster's – B1046 – debut in May 2018, the software engineer hosting SpaceX's Telstar 19V webcast was likely speaking more from a place of experience than of hope. Per CEO Elon Musk's press call just prior to Block 5's debut, he noted that SpaceX intended to conduct an extensive analysis of that pathfinder booster, including significant disassembly and perhaps some limited destructive testing of certain critical or high-risk components. Musk didn't expect B1046 to fly for at least another "couple of months".

This is critical because SpaceX's manifest over the next several weeks is fairly aggressive – Iridium-7 is scheduled to lift off from Vandenberg, CA three days from today (July 25th), the next Florida launch is aiming for a static fire next weekend and a launch NET 1:19 am EDT August 2, and the second imminent Florida mission is penciled in for launch NET 11:35 pm EDT August 17. Those rapid-fire Florida launches will push both SpaceX's pad and drone ship turnaround capabilities to their limits, requiring almost non-stop work to ensure both are available for the next mission in two weeks or less.
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SpaceX's West Coast landing zone is preparing for its own debut, currently H2 2018. (Teslarati)


Falcon 9 B1047 prepped for launch at Pad 40, July 21. (SpaceX)


Falcon 9 B1043 rolls out to SpaceX's VAFB SLC-4E pad, May 2018. (Pauline Acalin)
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Not to be (at least relatively) one-upped, SpaceX's Vandenberg launch pad – known as SLC-4E – is scheduled to push its own turnaround limits by flying two missions in roughly 40 days, just shy of the current SpaceX record of 36 days between launches. Perhaps more excitingly, that September 4 SAOCOM 1A mission looks like a prime candidate for the debut of SpaceX's yet-unused Californian landing zone, barely spitting distance from the SLC-4E launch pad.

Still, the question remains: what boosters are going to launch these four missions?
    [/li]
  • B1051 is not believed to have left the Hawthorne, CA factory yet, and has been stated by NASA to be reserved for the first uncrewed Crew Dragon mission (DM-1), unlikely to occur before Q4 2018.
  • B1050 is currently on-stand in McGregor, TX and is likely to be shipped to a launch pad within a week or two.
  • B1049 was almost certainly shipped to Florida to support either of the two upcoming August launches.
  • B1048 will launch Iridium-7 on July 25, land on Just Read The Instructions, and likely remain in California for future VAFB missions.
  • B1047 just successfully launched Telstar 19V (July 22) and will be brought back to Port Canaveral over the next several days before heading to one of SpaceX's Florida refurbishment facilities, presumably to prepare for an imminent future launch.
  • B1046 is likely disassembled in Hawthorne, CA, unable to support a launch for another few weeks – perhaps it's nearly ready, however
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Three Falcon 9 boosters captured in various states of transport and testing over the last six weeks, two of which are B1047 and B1048. (Teslarati/Tesla Motors Club/Reddit/Facebook)
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Put simply, it seems almost impossible for SpaceX to accomplish its ambitious manifest over the next 4-6 weeks without reusing a freshly-recovered Falcon 9 Block 5 booster. B1046 is a possibility, as is B1047 or B1048, although the latter two options would smash SpaceX's previous record for Falcon booster turnaround (~70 days) by more than half, requiring in a return to shore, refurbishment or nondestructive analysis, and preparation for a static fire in as few as ~14-21 days.

Regardless, B1047's successful Telstar 19V launch and landing have kicked off what is bound to be an extremely exciting period for SpaceX and its aspirations of highly-reusable rocketry.

tnt22

https://www.teslarati.com/how-spacex-catches-fairing-mr-steven-net/
ЦитироватьSpaceX will use a parasail guidance system to land Falcon 9's fairing into a huge net

By Eric Ralph
Posted on July 24, 2018

SpaceX recovery vessel Mr Steven officially departed Port of Los Angeles on the evening of July 23 and is speeding towards its first Falcon 9 fairing recovery attempt since a major series of refits and upgrades. With massive new arms and usable net area increased fourfold, chances are better than they've ever been for the iconic clawboat to at last snag its first true 'catch' of a parasailing payload fairing.

Set to be stationed roughly 900 km (600 mi) southwest of the California coast, Mr Steven's vast new net should dramatically even the playing field, cutting the effective error margin for each fairing catch attempt by as much as 60% on its own. An extra ~30 meters of net both length and width-wise would functionally act as a cushion for the ~50-meter accuracy the fairings have demonstrated thus far (i.e. halves missed Mr Steven's smaller, original net by 50 m).

Still, the question remains for many people: how exactly does Mr Steven 'catch' a clamshell fairing half, and how does that fairing half find its way to Mr Steven?


SpaceX's fairing catcher Mr Steven prepares to debut his new net and arms to catch a Falcon 9 payload fairing, NET July 25. (Pauline Acalin)

A PARASAIL AND A PRAYER
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Each Falcon 9 fairing is a two-piece 1600 kg sandwich of carbon fiber composites and aluminum honeycomb, as well as internal dressings of soundproofing panels, cold nitrogen gas thrusters for attitude control in vacuum, and finally the parafoil and control hardware/avionics necessary to safely recover the fragile halves. Stretching 13m long and 5.2m wide (43ft x 17ft), SpaceX has partially worked with contractors already experts in the art of autonomously guiding parasails with payloads up to 10,000 kg (22,000 lb), and doing so with some level of accuracy.

Ultimately, GPS-guided parafoils have been done successfully many times over in the past two or so decades. For the most part, the problems preventing SpaceX from recovering fairings in Mr Steven's net have been almost entirely solved: the fact that six or more halves have been recovered intact after their Falcon 9 launches confirm that much. SpaceX engineers have somehow found a way to allow a highly flexible, lightweight, and aerodynamically awkward lifting body to survive a journey from heights of 110+ km and speeds of several kilometers per second.


One half of SpaceX's Iridium-6/GRACE-FO just moments before touchdown on the Pacific Ocean. (SpaceX)

Per the extraordinarily minimalist appearance of each half's parafoil recovery hardware and the lack of any clear control mechanism, it's very likely that SpaceX has sided with an in-canopy (canopy=the parachute) system of actuators tasked with subtly warping the parafoil, comparable in functionality to a crude replica of a bird's wing.

WHEN IN DOUBT, COPY BIRDS


NASA's X-38 project demonstrated the functionality of autonomous parasail guidance in 1999. (NASA)


By tweaking, pulling, and tensing or loosening any number of those lines with servo motors and actuators, one can very accurately control the flight characteristics of a parafoil. (NASA)


From left to right, my best guess for each fairing is PAZ, Iridium-6 Half 1, Iridium-5, and Iridium-6 Half 2. (Pauline Acalin)

Once the massive 800-kilogram components can be captured in flight by Mr. Steven, it should be a fairly simple prospect for SpaceX to move from recovery to reuse, potentially saving as much as 10% ($6m) of the cost of each Falcon 9 and Falcon Heavy launch in one simple, fell swoop. Perhaps even more importantly, fairing reuse would remove some of the pressure placed on SpaceX's composite production floor, which currently must support the fabrication of dozens of fairing halves, booster interstages, payload adapters, Falcon Heavy nose cones, and much more, including smaller subassemblies required for both Crew and Cargo Dragons.

BFR is gonna need all the composite design and manufacturing expertise it can get.
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tnt22

ЦитироватьJohn Kraus‏ @johnkrausphotos 2 мин. назад

Falcon 9 B1047 is visible on the horizon! SpaceX's "Of Course I Still Love You Droneship" is arriving back at Port Canaveral on the east coast as SpaceX prepares to launch another Falcon 9 and Iridium-7 on the west coast.


tnt22

ЦитироватьJohn Kraus‏ @johnkrausphotos 1 мин. назад

Falcon 9 B1047 and OCISLY are still a decent bit offshore. Based off this heavily-cropped telephoto image, it looks like the "Octograbber" may have been utilized for Telstar 19V.