Connect with us

News

SpaceX readies Falcon 9 Block 5s for bi-coastal launches and landings

Published

on

After several months of preparation behind the scenes, SpaceX’s second and third serial Falcon 9 Block 5 rockets are ready for the first launches of the upgraded vehicle from Vandenberg Air Force Base, CA (VAFB) and Cape Canaveral Air Force Station, FL (CCAFS).

On the calendar for 1:50 am EDT/5:50 UTC July 22 and 4:39 am PDT/11:39 UTC July 25, SpaceX launches of Telstar 19V and Iridium NEXT-7 are set to mark the beginning of a new era for the company, where all future missions will fly with Block 5 hardware upgraded for reusability and reliability and attempt recovery almost without fail.

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)

Bursting out of the expendable rocket cocoon

While it may be the case that an odd launch or two require a booster be expended to prevent schedule delays or carry an exceptionally heavy satellite to an exceptionally high orbit, it’s safe to say that such a mission with Block 5 boosters will be an anomaly. Somewhat iffy comments posted on Reddit recently claimed that Falcon Block 5 boosters would be able to easily (and rapidly) hop between roles as side and center boosters for both Falcon 9 and Falcon Heavy. While wild, those claims, in retrospect, make a lot of sense, even if the reality of Block 5 booster interchangeability was a tad exaggerated.

If SpaceX truly wants to end the practice of expending rocket boosters, – and eventually fairings and upper stages, with any luck – the company will truly need to embrace a strategy that’s long been floated by executives like CEO Elon Musk and COO/President Gwynne Shotwell. That strategy dictates that SpaceX routinely use both Falcon 9 and Falcon Heavy as an almost interchangeable and rocket team capable of launching nearly every orbital payload conceivable today, all while remaining in fully or mostly reusable modes of operation.

 

At the moment, educated estimates of Falcon Heavy’s true performance margins with dual booster landings at SpaceX’s Florida landing zones and center core recovery aboard Of Course I Still Love You (OCISLY) suggest that the Block 5 version of Falcon Heavy should be capable of launching every commercial satellite planned or penciled in for launch over the next five years, at a minimum. Finally, while the Falcon family’s fuel choice of high-grade kerosene (RP-1) and liquid oxygen make the rocket far more compact and energy-dense than alternatives, one downside of that choice is a loss of efficiency, although brute-force strength makes FH a competitive beast for all missions beyond Earth orbit (Mars, Venus, Saturn, asteroids, comets, etc).

However, a fully-expendable Block 5 Falcon Heavy seems to be at least 3X as unlikely as an expendable Block 5 Falcon 9. Nevertheless, CEO Elon Musk made it clear that a nominal Falcon Heavy launch where both side boosters were recovered at sea and the center booster expended could accomplish a full ~85-90% of an entirely expendable mission, and for roughly $95m. As such, a combination of reusable Falcon 9s, reusable Falcon Heavys, and ~30%-expendable Falcon Heavys could successfully complete every plausible commercial and non-commercial launch in the world and do so at the lowest cost for the better part of the next five years, at which point the company’s next-gen Big F____ Rocket (BFR) ought to be operational.

Advertisement
-

Telstar 19V and Iridium-7

With any luck, SpaceX’s next two launches will be the first huge step in the direction of that one-stop-shop for competitive transportation to orbit. Teslarati photographer Tom Cross will be setting up remote cameras for the Telstar 19V’s Florida liftoff later this evening, while our West Coast fellow and famed Mr Steven-stalker Pauline Acalin will be setting up her own set of remote cameras for VAFB’s Falcon 9 Block 5 debut on Tuesday.

On the East Coast, drone ship OCISLY has already departed Port Canaveral with a duo of support vessels and a dedicated tugboat, while the West Coast’s Just Read The Instructions (JRTI) will likely take leave of the Port of Los Angeles within 24 hours. Those dual, successful (?) rocket landings will hopefully mark the first of many dozens of missions for F9 boosters B1047 and B1048.

Advertisement
-
Cheaper launches as a result of reusable rockets may not necessarily increase demand for satellite launches.

The first Block 5 Falcon 9 lifts off on May 4, 2018. Several more are soon to come. (Tom Cross)

Follow us for live updates, peeks behind the scenes, and photos from Teslarati’s East and West Coast photographers.

Teslarati   –   Instagram – Twitter

Tom Cross – Twitter

Pauline Acalin – Twitter

Eric Ralph – Twitter

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.

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.

Advertisement
-

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.

Advertisement
-

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.

Advertisement
-

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.

Advertisement
-
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:

Advertisement
-

“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.

Advertisement
-
Continue Reading