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SpaceX set to launch reused Dragon on a new Falcon 9 as NASA requests delay

Falcon 9 B1050 lifts off during the first Block 5 launch of Cargo Dragon.(Tom Cross)

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An electrical fault aboard the International Space Station (ISS) has forced NASA to delay SpaceX’s CRS-17 Cargo Dragon launch from May 1st to May 3rd, giving the station’s crew more time to fix the issues at hand.

A new Falcon 9 Block 5 booster is tasked with launching the spacecraft and completed a static fire test at SpaceX’s LC-40 pad on April 27th. The Cargo Dragon capsule, however, completed its first orbital resupply mission (CRS-12) in September 2017 and has since been refurbished for a second launch. After CRS-17, three launches remain on SpaceX’s CRS1 NASA contract between now and early 2020, after which Dragon 2 (i.e. Crew Dragon) is expected to take over. However, a recent failure during a Crew Dragon test have thrown those plans into question.

Cargo Dragon’s 17th mission

Known as C113, the CRS-12 capsule is the last Dragon 1 manufactured by SpaceX, leaving a fleet of five flight-proven spacecraft for SpaceX to complete the eight remaining ISS resupply missions under its Commercial Resupply Services 1 (CRS1) contract. CRS-17 is the latest installment in SpaceX’s ISS resupply saga and is manifested with ~2500 kg (5500 lb) of cargo.

Along for the ride are NASA’s Orbiting Carbon Observatory-3 (OCO-3) and the multi-experiment STP-H6 investigation, two large pieces of hardware that will be delivered to the ISS in Dragon’s unpressurized trunk. After being berthed to the ISS, astronauts will unpack dozens of packages stored inside Cargo Dragon’s cabin. Sometime later, the station’s Canadarm2 will be used to grab OCO-3 and STP-H6 and install each on the outside of the space station, where they will hopefully live long and scientifically fruitful lives.

SpaceX and NASA have assigned a new Falcon 9 Block 5 booster – likely B1056 – to launch CRS-17. To preserve the scene of Crew Dragon C201’s April 20th explosion, the booster will attempt to land around 20 miles (32 km) offshore aboard drone ship Of Course I Still Love You (OCISLY). Originally scheduled for April 25th, CRS-17 was delayed to the 26th, 30th, 1st, and now May 3rd, most of which were requested by NASA for ISS scheduling purposes.

The latest delay – from May 1st to no earlier than (NET) May 3rd – was triggered by an unexpected electrical fault aboard the ISS, cutting the redundancy of its Canadarm2 (SSRMS) control systems from two strings to one. In other words, Canadarm2 – used to ‘grapple’ and berth spacecraft like Cargo Dragon and Cygnus to the station – is now just one electrical fault away from being rendered inoperable. CRS-17 will stay grounded until two-string (i.e. single fault) redundancy is returned to Canadarm2 and additional impacted systems.

In the event that ISS astronauts and NASA ground control are able to repair the electrical systems in a timely fashion, CRS-17 is scheduled to launch at 3:11 am EDT (07:11 UTC) on May 3rd.

The International Space Station was captured in October 2018 during a Soyuz fly-around. (NASA/Roscosmos)

In the shadow of Crew Dragon

A recent catastrophic failure of Crew Dragon (i.e. Dragon 2) raises serious questions about SpaceX’s follow-up CRS2 contract, but the nominal plan involves retiring Dragon 1 after CRS-20 and flying all future cargo missions with flight-proven Crew Dragon spacecraft. In the likely event that Crew Dragon C201’s failure delays SpaceX’s CRS2 schedule by several months, there are contingency plans to continue flying refurbished Dragon 1 spacecraft.

However, each Dragon 1 was designed for a maximum of three orbital missions, meaning that SpaceX’s current capsule fleet can support no more than six additional resupply missions before they reach the end of their usable lifespans. SpaceX thus has two potential buffer missions – CRS-21 and CRS-22 – that could theoretically account for up to a year of Dragon 2 delays. Beyond that, additional Dragon 2 delays could create a gap where NASA would have to supply the ISS without SpaceX’s services.

In a best-case scenario, SpaceX and NASA will quickly uncover an unequivocal culprit of C201’s catastrophic explosion, fix the technical and organizational failures that allowed it to happen, and be back on their feet in no time. In reality, it’s likely that the failure will delay future Crew Dragon (and thus Dragon 2) launches by a minimum of 6-12 months. SpaceX will likely need to change up the launch order of its capsules, reassigning DM-2’s Crew Dragon to the in-flight abort (IFA) test and the US Crew Vehicle 1 (USCV-1) Crew Dragon to SpaceX’s first crewed demonstration mission (DM-2). After such a serious and potentially fatal failure, it’s even possible that NASA will require an additional uncrewed orbital launch before permitting SpaceX to fly astronauts on Crew Dragon.

Given that SpaceX’s nominal CRS2 plan involved lightly modifying and reusing Dragon 2s after crewed missions, the future (and schedule) of the company’s Cargo and Crew contracts are intimately intertwined. With any luck, SpaceX and NASA will be able to solve the technical, organizational, and logistical problems now facing them and ensure a stable future for Dragon 2. In the meantime, Cargo Dragon’s CRS-17 mission offers SpaceX a chance to partially verify that Cargo Dragon C201’s issues are are relegated to Dragon 2 and Dragon 2 alone.

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Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

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Why Tesla Roadster unveiling delay might have nothing to do with it flying

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tesla roadster elon musk flying
Credit: Grok

Tesla announced on Monday that the Roadster event scheduled for today would be postponed due to the need for it to be held outside.

Less than 24 hours later, CEO Elon Musk broadened that by stating it was due to high winds, immediately sending everyone into a frenzy over the Roadster’s potential ability to fly.

And realistically, it could definitely have to do with it flying, hovering, or hopping; whatever Tesla has in mind for this demonstration could not be impacted by wind. However, it might have nothing to do with the vehicle flying whatsoever, and instead could be a simple precaution, as the Roadster is a very unique vehicle with some already official specs that are just mind-blowing.

Tesla will very, very likely be showcasing both the acceleration rate and potentially even a top speed demo at the event in Waco. Both of these demonstrations, performed with a vehicle that has such incredibly fast metrics, could easily be impacted by wind as well.

Tesla Roadster event requires restricted airspace, and the FAA obliges

Top Speed Demo

At high speeds, aerodynamic forces are already overwhelmingly present. A crosswind or sudden gust adds a layer of sideways force that the tires must counter with slip angle. On a short demo course, that force can shove the car off the intended line, especially in a light car with a low frontal area and little mass to resist the push.

Electric cars, due to their battery packs, have an advantage of an extremely low center of gravity, giving them extra stability. However, the speeds at which the Roadster could travel at the demo could spell some issues if crosswinds are present.

Gusts are worse than a steady wind because the load changes faster than a driver can smoothly correct. That shows up as weaving or a late correction. Headwinds and tailwinds can also spell disaster. Headwinds cut a measured top speed but raise the power needed to get there or maintain it. Meanwhile, a tailwind can inflate the top speed, and downforce issues could become more noticeable.

Wind also loads the body unevenly. A low car can feel light on the upwind side or see a sudden change in downforce if the gust hits a wing or diffuser at an angle. Tire temperature and pressure might stay near a normal level, but lateral grip can be lost as the vehicle is spent fighting the wind.

Acceleration Demo

Launch and 0-60 MPH runs are shorter, so the car spends less time exposed to forces that could cause things to go awry. However, the first second is very sensitive, as a crosswind at launch could yaw the car before speed builds and prior to aerodynamic impact being too great. The driver will be required to correct traction control or manage how much the wheels are spinning, which will likely be corrected automatically by some sort of traction control system within the Roadster (we are fairly certain Tesla will implement something brilliant with it).

These things could cause an unstable run.

A headwind would increase drag as speed rises, while a tailwind would do the opposite. Meanwhile, surface effects, like wind-driven dust, light debris, or even rain, could reduce grip at the exact moment the tires are asked for peak longitudinal force. Standing water plus a crosswind is a common reason an acceleration attempt might be scrapped.

Flying or Not

No matter what Tesla has in store for the Roadster, waiting for ideal conditions is a great idea. People who follow and support the company, along with the engineers involved in the Roadster program, have been waiting nine years since the last unveiling for this moment. Everything should be ideal.

Some speculate that it’s just not ready, and that’s ridiculous. Why would Tesla even schedule the event — albeit prematurely — after nine years if it was not ready? Why would they jump the gun now?

We were all excited for today, but it truly is the most ideal thing in the world to wait two more weeks so everything, including the weather, can be perfect. The delay is simply worth it. But Tesla, seriously, make this the last one.

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Elon Musk

SpaceX nails “Lucky 13” astronaut launch, leaning into Tesla tradition and superstition

SpaceX launched Crew-13 astronauts to the ISS Thursday, setting up a record fast Dragon docking.

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Crew Dragon sits atop Falcon 9 at sunrise on Cape Canaveral's pad 40, less than a day before four astronauts are set to launch to the ISS. (Credit: SpaceX)

SpaceX launched NASA’s Crew-13 mission to the International Space Station on Thursday morning, getting four astronauts to orbit despite a forecast of thunderstorms and gusty winds that had threatened to push the flight to Friday.

Falcon 9 lifted off from Space Launch Complex 40 at Cape Canaveral Space Force Station at 11:10 a.m. ET carrying Dragon Grace, NASA confirmed. On board are NASA commander Jessica Watkins, NASA pilot Luke Delaney, Canadian Space Agency astronaut Joshua Kutryk and Roscosmos cosmonaut Sergey Teteryatnikov. The first stage booster, B1101, landed at Landing Zone 40 beside the pad on its third flight after previously supporting Crew-12 and a Starlink mission.

It was the first spaceflight for Delaney, Kutryk and Teteryatnikov. Watkins, who flew on Crew-4 in 2022, became the first NASA astronaut to launch aboard a Crew Dragon twice.

Before launch, the crew rode to the pad in Teslas, a tradition on NASA’s SpaceX crew flights since 2020. This time the cars carried specialty plates reading “Lucky 13.” Watkins said the mission patch leans into the number on purpose, as a nod to Apollo 13 and the resilience of that crew.

Grace is now on a short trip to the station. Docking at the forward port of the Harmony module is scheduled for about 7 p.m. ET, roughly 7 hours and 50 minutes after liftoff, which Space.com notes would be the fastest Crew Dragon transit to the ISS yet. Most Dragon flights take around 15 to 24 hours to catch the station. Hatch opening is planned for 8:25 p.m. ET.

The launch came more than two weeks later than originally planned. An oxidizer leak was found in Grace’s propulsion system in August, and NASA and SpaceX added time for tests. That pushed back the return of Crew-12, which has been aboard the station since February and is now set to splash down off Southern California next week. Crew-13 is expected to stay about six months.

SpaceX rescue mission for stranded ISS astronauts nears end — Here’s when they’ll return home

SpaceX already holds NASA orders for crew rotations through Crew-17, while Boeing is preparing an uncrewed Starliner flight to the station as early as December.

Crew-13 was only the first of three SpaceX launches planned for Thursday, as Teslarati previewed on Wednesday. A Falcon 9 launched its Transporter-18 mission from California today, where Google will be launching its first orbital artificial intelligence (AI) test satellite. Meanwhile, Falcon Heavy is set to launch the classified NROL-97 mission for the National Reconnaissance Office from Launch Complex 39A at 11:53 p.m. ET. Its two side boosters will return to Landing Zones 1 and 2, which means Central Florida could hear up to three sonic booms in a single day. The busy stretch follows Starship’s Flight 14 on Monday, which reached orbit for the first time.

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Tesla moves forward on Wireless Charging for vehicles

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Credit: Tesla | X

Tesla has moved its Wireless Charging efforts for its electric vehicles forward, as it had a new patent published today, one that it submitted back in March.

The patent describes a system for detecting foreign objects on the wireless charging pad under varying temperatures, aiming to mitigate any undesired results that could come from something being on top of the charging pad.

The abstract of the patent states:

“The present disclosure relates to methods and systems that can reliably detect foreign objects on a wireless charging pad under varying temperatures. In some examples, an object detector can utilize a set of inductive coils included in resonant tanks, and excite the resonant tanks using signals in a range of frequencies including or near a nominal resonant frequency of the resonant tanks. The object detector can detect a metal object based on resistance of a coil increasing and inductance of the coil decreasing. By analyzing the shifts and/or distributions in resonant frequencies and output magnitudes (e.g., output voltage peaks), the object detector can distinguish between changes of frequencies and magnitudes caused by temperature and those caused by foreign objects to accurately detect the foreign objects.”

The object detection system will utilize a set of inductive coils included in resonant tanks, and “excite the resonant tank using signals in a range of frequencies including or near a nominal resonant frequency of the tanks.” Metal can be detected by an increase in the coil’s resistance and a decrease in the coil’s inductance.

By analyzing shifts or disruptions in resonant frequencies and output magnitudes, the system can detect foreign objects. These types of safeguards need to be implemented through the normal operation of the charging pads.

Tesla says its Cybercab wireless charging efficiency is ‘well above 90%’

Tesla plans to utilize wireless charging with Cybercab and Robotaxi-enabled units to help streamline the fully autonomous experience from A to Z. The last thing the company wants to do is have any sort of small obstruction preventing the rider from experiencing Robotaxi as intended.

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