Connect with us

News

SpaceX’s Falcon 9 may soon have company as Rocket Lab reveals plans for Electron rocket reuse

Following in SpaceX's footsteps, Rocket Lab wants to become the second company in the world to reuse orbital-class rocket boosters. (USAF/Rocket Lab)

Published

on

The most prominent launcher of small carbon composite rockets, Rocket Lab, announced plans on Tuesday to recover the first stage of their Electron rocket and eventually reuse the boosters on future launches.

In short, CEO Peter Beck very humbly stated that he would have to eat his hat during the ~30-minute presentation, owing to the fact that he has vocally and repeatedly stated that Rocket Lab would never attempt to reuse Electron. If Rocket Lab makes it happen, the California and New Zealand-based startup will become the second entity on Earth (public or private) to reuse the boost stage of an orbital-class rocket, following SpaceX’s spectacularly successful program of Falcon 9 (and Heavy) recovery and reuse.

What is Rocket Lab?

Rocket Lab – headquartered in Huntington Beach, California – is unique among launch providers because they specialize in constructing and launching small carbon composite rockets that launch from the gorgeous Launch Complex 1 (LC-1) in Mahia, New Zealand. Their production facilities are located in Auckland, New Zealand, where they not only produce their own rockets but also 3D print Rutherford engines, the only orbital-class engine on Earth with an electric turbopump.

Electron Flight 6 stands vertical at Rocket Lab’s spectacular Launch Complex-1 (LC-1), located in Mahia, New Zealand. (Rocket Lab)

Electron’s 1.2-meter (4 ft) diameter body is built out of a super durable, lightweight carbon composite material that relies on custom Rocket Lab-developed coatings and techniques to function as a cryogenic propellant tank. It is powered by 9 liquid kerosene and oxygen (kerolox) Rutherford engines that rely on a unique electric propulsion cycle. The engine is also the only fully 3D-printed orbital-class rocket engine on Earth, with all primary components 3D-printed in-house at Rocket Lab’s Huntington Beach, CA headquarters. Pushed to the limits, a complete Rutherford engine can be printed and assembled in as few as 24 hours.

Currently, Rocket Lab is producing an Electron booster every 20-30 days and flies about once a month out of New Zealand. Since the first operational flight at the end of 2018 Rocket Lab has supported both commercial and government payloads. With a new launch complex (LC-2) coming online in Wallops, Virgina by the end of this year, they look to increase launch frequency, but also widen its market of customers. According to CEO Peter Beck, booster reuse could be a boon for Electron’s launch cadence.

A photo of Rocket Lab’s production facility located in Auckland, New Zealand shows multiple first stage Electron boosters during the production process. (Rocket Lab)

“Electron, but reusable.”

In the world of aerospace, SpaceX is effectively the only private spaceflight company (or entity of any kind) able to launch, land, and reuse orbital-class rockets, although other companies and space agencies have also begun to seriously pursue similar capabilities. Rocket Lab’s announcement certainly brings newfound interest to the private rocket launch community. Reuse of launch vehicle boosters – typically the largest and most expensive portion of any given rocket – is a fundamental multiplier for launch cadence and can theoretically decrease launch costs under the right conditions.

Rocket Lab hopes, more than anything, that recoverability will lead to an increase in their launch frequency and – at a minimum – a doubling of the functional production capacity of the company’s established Electron factory space. This will allow for more innovation and give the company more opportunities to “change the industry and, quite frankly, change the world,” according to founder and CEO Peter Beck.

Unlike like SpaceX’s Falcon 9, propulsive landing is not an option for the small Electron rocket. In fact, cost-effective recovery and reuse of vehicles as small as Electron was believed to be so difficult that Beck long believed (and openly stated) that Rocket Lab would never attempt the feat. Beck claims that in order to land a rocket on its end propulsively – by using engines to slow the booster while it hurdles back to Earth in the way the Falcon 9 booster does – would mean that their small rocket would have to scale up into the medium class of rockets. As Beck stated, “We’re not in the business of building medium-sized launch vehicles. We’re in the business of building small launch vehicles for dedicated customers to get to orbit frequently.” 

Electron is pictured here during its first three successful launches. (Rocket Lab)

The main concern that Rocket Lab faces with the daunting task of not using propulsion to land is counteracting the immense amount of energy that the Electron will encounter on its return trip through the atmosphere. In order to return the booster in any sort of reusable condition they will have to decrease the amount of energy that the rocket is encountering which presents in the forms of heat and pressure from ~8 times the speed of sound to around 0.01 times the speed of sound. This decrease also needs to occur in around 70 seconds during re-entry and according to Beck “that’s a really challenging thing to do.” Beck went on further to explain that this really converts into dissipating about 3.5 gigajoules of energy which is enough energy to power ~57,000 homes. 

Breaking through “The Wall”

When re-entering the atmosphere the energy that any spacecraft endures creates shockwaves of plasma which must be diverted away in order to protect the integrity of the spacecraft. An example of this can be seen during the re-entry of a SpaceX fairing half. Beck explains that “the plasma around those shockwaves is equal to about half the temperature of the (surface of the) sun” which can reach temperatures as high as 6,000 degrees fahrenheit. It also endures aerodynamic pressure equal to that of three elephants stacked on top of the Electron, according to Beck. His team refers to these challenges as breaking through “The Wall.”Beck explains that they will attempt to solve these problems differently using passive measures and aerodynamic decelerators. 

Advertisement
-

The Wall is something that Beck and his team have been trying to tackle for some time now. Since the Electron began operational flights at the end of 2018 data has been collected to inform the problem solving process. In total Electron has successfully completed 7 flights, with its 8th scheduled to occur within the coming days. Beck explains that flights 6 and 7 featured data collection done through 15,000 different collection channels on board of Electron. The upcoming eighth flight will feature an advanced data recording system nicknamed Brutus. This new recording system will accompany Electron on the descent, but will survive while the booster breaks up as usual. It will then be collected and the data will be evaluated and used to further inform the decision making process for how to best help Electron survive its fall back to Earth.

Rocket Lab has detailed plans to recover and re-fly Electron’s first stage to support increased launch frequency for small satellites. (Rocket Lab/Youtube)

Catching rockets with helicopters

Once Rocket Lab breaks through The Wall and effectively returns Electron without harm, the booster will need to be collected before splashing down into corrosive saltwater. This was demonstrated to be done via helicopter which according to Beck is “super easy.”

An animation depicts a helicopter leaving a dedicated recovery vessel to capture the Electron booster after it deploys a parafoil and begins gliding. The helicopter will intercept the booster’s parachute using a hook and will then carry the booster back to the recovery vessel, where technicians will carefully secure it.

The entire goal of recovering a booster is to be able to reuse it quickly. Beck explains that since Electron is an “electric turbopump vehicle…in theory, we should be able to put it back on the pad, charge the batteries up, and go again.”

Although this goal is ambitious, it is one that – if achieved – will significantly impact the launch community in very positive ways. Not only will the option of rapid reusability open up, but so will opportunity for more agencies to engage in the world of satellite deployment. The Electron currently costs anywhere between $6.5 – 7 million per launch to fly. If the production cost of a new booster is removed space becomes attainable for many more customers.

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

Advertisement
-

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