Connect with us
NASA says that a minor accident that destroyed a crucial Crew Dragon mockup on March 24th should have minimal impact on the spacecraft's astronaut launch debut. (Richard Angle) NASA says that a minor accident that destroyed a crucial Crew Dragon mockup on March 24th should have minimal impact on the spacecraft's astronaut launch debut. (Richard Angle)

News

SpaceX's Crew Dragon is about to escape a supersonic rocket: here's how to watch live

SpaceX's Crew Dragon spacecraft is ready for its second launch ever on a Falcon 9 rocket but this mission's destination is far from orbit. (Richard Angle)

Published

on

SpaceX’s Crew Dragon spacecraft is set to attempt to escape a supersonic Falcon 9 in what will likely be the first intentional in-flight destruction of an orbital-class rocket in decades.

Known as an In-Flight Abort test, Crew Dragon’s second test flight is guaranteed to be spectacular and will thankfully be streamed live by both NASA and SpaceX. Scheduled to lift off no earlier than 8 am EST (13:00 UTC), January 18th, the IFA could also be Crew Dragon’s last uncrewed launch ever, hopefully paving the way for its first orbital flight with NASA astronauts on board just a few months from now.

For now, SpaceX’s primary focus with the IFA test is to prove that Crew Dragon can protect passengers and cargo even in the unlikely event that Falcon 9 fails in flight – after liftoff but before the spacecraft has separated from the rocket.

After several months of delays brought on by the explosion of Crew Dragon capsule C201 in April 2019 and an additional two-week slip from NASA’s first public launch date, Falcon 9 booster (B1046) and Crew Dragon capsule C205 have both completed static fire tests of their respective rocket engines and rolled out to Pad 39A on January 16th.

After at least half a year of investigation and a similar period spent redesigning and requalifying a subsection of the high-pressure propellant plumbing that feeds Crew Dragon’s SuperDraco abort thrusters, new capsule C205 successfully fired up a handful of Draco maneuvering thrusters and all 8 of its SuperDracos abort engines, simulating the burns it will have to perform during Saturday’s IFA test.

A pair of Crew Dragon’s upgraded SuperDraco abort engines perform a static fire test. (SpaceX)

According to NASA and SpaceX, the ~48 hours between rollout and liftoff have been used to perform a dry run for future NASA astronaut launches, more or less exactly replicating the processes that will soon be used for real. Of course, Demo-2 astronauts Bob Behnken and Doug Hurley didn’t actually board the Crew Dragon spacecraft (its interior is unfinished) and will certainly not be on board come liftoff, but everything up to the point of spacecraft ingress was performed as if they will be.

https://twitter.com/JimBridenstine/status/1218244543209852928

Audiences will likely be treated to a rare view from inside SpaceX’s flight operations center, recently permanently relocated to Firing Room 4 of NASA’s Flight Control Center (FCC) – a facility with substantial historical ties to US human spaceflight. It was last utilized as part of Crew Dragon’s inaugural orbital launch – “Demo-1” – in March 2019.

Advertisement
-
A view of Firing Room 4 in NASA’s Flight Control Center used during Crew Dragon’s inaugural Demonstration-1 Mission in March of 2019.

Approximately 90 seconds after liftoff, shortly after a point of maximum aerodynamic stress called Max Q, Crew Dragon will ignite its SuperDraco abort thrusters in an attempt to prove that it can whisk astronauts to safety in even a near-worst-case scenario. After a 10-second SuperDraco burn, the spacecraft will have to stabilize itself, reenter the bulk of Earth’s atmosphere, and deploy four main parachutes for a gentle splashdown in the Atlantic Ocean.

A combined SpaceX and USAF team will recover the hopefully-intact spacecraft from the ocean, likely using the opportunity to once again simulate the process of recovering a crewed Crew Dragon and safely extracting the NASA astronauts strapped inside it.

SpaceX’s Crew Dragon is guided by four parachutes as it splashes down in the Atlantic Ocean about 200 miles off Florida’s east coast on March 8, 2019, after returning from the International Space Station on the Demo-1 mission. (NASA)

Falcon 9 booster B1046 is expected to be “destroyed in Dragon fire”, according to SpaceX CEO Elon Musk. The Crew Dragon capsule will jettison mid-flight, leaving B1046 open to extremely abnormal aerodynamic stress that will likely tear it and the upper stage apart. NASA says SpaceX will attempt to recover as much of the expected rocket debris as possible.

Crew Dragon’s IFA test has a four-hour launch window with liftoff targeted no earlier than (NET) 8 am EST (13:00 UTC), January 18th. For a variety of reasons, this mission is uniquely susceptible to weather both at and around the launch pad and stands a good chance of slipping much later into the window, and backups are available at the same time on Sunday and Monday.

Regardless, SpaceX will provide live coverage of the test whenever it does launch, beginning around 15 minutes prior to liftoff. Teslarati photographer Richard Angle and reporter Jamie Groh will be on-site to document the events of Crew Dragon crucial – and likely spectacular – flight test.

Check out Teslarati’s Marketplace! We offer Tesla accessories, including for the Tesla Cybertruck and Tesla Model 3.

Space Reporter.

Advertisement
Comments

Elon Musk

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

Published

on

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.

Continue Reading

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.

Published

on

By

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.

Continue Reading

News

Tesla moves forward on Wireless Charging for vehicles

Published

on

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.

Continue Reading