Stratolaunch successfully completed its hypersonic test flight earlier this year. Image courtesy of Draper

With a recent air-launched test vehicle flight that came close to hypersonic speed, research company Draper has accelerated the potential for its flight technology.

Draper, a Cambridge, Massachusetts-based nonprofit, provided the crucial guidance, navigation, and control flight software for the flight. That guidance system was built on the same Draper technology that NASA has used in its Apollo mission, the international space station and space shuttle programs.

“In a broad sense, Draper has been working hypersonic since Apollo,” Rick Loffi, space systems program manager and lead executive for Draper’s Houston campus, tells InnovationMap.

The navigation software controlled the first powered test flight of an air-launched vehicle that approached the hypersonic threshold of Mach 5, or 3,800 miles per hour, or five times the speed of sound.

Stratolaunch successfully completed the flight of its TA-1 Talon test vehicle in the Mojave Desert in March. The California-based company designs and launches aerospace vehicles and technologies, providing access to a reusable hypersonic testing platform, according to its website. The historic test flight landed in the Pacific Ocean, and achieved successful ignition, acceleration and sustained altitude climb.

“The Draper software is really what’s stabilizing the vehicle during flight…and controlling it as it gets up into altitude and speed,” Brandon Jalbert, space systems program manager for Draper and team lead for Stratolaunch, says “so it’s not doing loop-de-loops, or getting unstable…blowing up in the atmosphere.”

Draper uses model-based design and algorithms in its software, and for the boost phase of the Talon test, Draper developed a novel algorithm, which built upon its previous work for NASA, Jalbert says.

Aerospace manufacturing companies like Boom and Hermeus stand poised to pick up where the Concorde left off, and are racing to implement and execute on accessible hypersonic and supersonic commercial technology.

The Concorde aircraft made supersonic, four-hour transoceanic flights a reality, but only for the very wealthy, and shut down in 2003.

Draper is not involved in any of those ventures to bring accessible supersonic flight back to the skies. Its primary focus with hypersonic will remain with deterrence and testing platforms, Jalbert says.

But the company’s technology “has applications everywhere from military to commercial activity,“ he says.

“Our focus is to solve complex challenges of national importance,” he says, “whether that’s…helping our commercial partners, or working on civil or military applications. That’s where we see ourselves being of value to the industry.”

With the harsh conditions involved in hypersonic flight, advancing the technology has its challenges.

“You’ve got to have proper hardware and electronics and sensors that can operate within those conditions,” Jalbert says.

Draper originated in 1932 when engineer Charles Stark Draper founded what eventually became the Instrumentation Lab at MIT.

His work on inertial navigation theory paved the way for the use of the autopilot in today’s commercial jets. The lab was divested by MIT in the 1970s, and became a nonprofit. Draper has long been a government contractor and has worked on many military projects, dating to WWII.

Draper in 2023 secured the $2.2 billion renewal of a long-standing contract with the U.S. Navy to provide the guidance system for the submarine-launched Trident II D-5 missile.

The U.S. government has shown a growing interest in the development of hypersonic weapons systems, as Russia and China have developed advanced capabilities.

The Pentagon’s budget request for hypersonic research for fiscal year 2025 was $6.9 billion, up from $4.7 billion for 2023, according to a recent U.S. Naval Institute report.

“There’s a big shift, in deterrence, as well as offensive, on hypersonic,” Jalbert says.

However, the Defense Department has not yet acquired hypersonic weapons, according to the report, but is developing prototypes and testing.

Draper has a long, celebrated history with NASA, and its Houston office is housed at Johnson Space Center. Draper's presence in Houston dates back to the 1960s, Loffi says.

From the Apollo missions to the space station and now the Artemis program, which aims to land the first person of color and the first woman on the moon by 2026 on its Orion spacecraft, Draper has partnered with NASA every step of the way, providing its navigation system for space flight.

“Right now, our biggest customer within NASA is the Orion program,” Loffi says, with approximately 15 of the 20-person Houston office working on the project, in collaboration with the company’s Cambridge colleagues.

Draper's Houston office is working on NASA's Orion program. Photo via NASA

The company is also working with NASA on lunar landing technology and sub-orbital experiments, as well as the propulsion element and Gateway space station for Artemis.

Amazon founder Jeff Bezos’s aerospace manufacturing company Blue Origin is also partnering with Draper to develop the Artemis human landing system.

Neither Loffi nor Jalbert aspired to go into outer space themselves, but rather to provide solutions to make that possible. Human spaceflight has been a lifelong passion for Loffi.

While he had lots of job opportunities after graduating from Purdue University with a degree in electrical engineering, Loffi chose NASA.

“I wasn’t that person who grew up dreaming of becoming an astronaut,” Loffi says. “I was old enough to see the Apollo 11 moon landing, and it did inspire me.”

His work at NASA began after the space shuttle Challenger explosion, in 1986. He was part of the agency’s effort to return to space flight, and worked on space station development, before joining Draper in 2011.

Jalbert, a graduate of Northeastern University, says his early work at Draper “lit the fires for my interest in space.”

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2 Houston space tech cos. celebrate major tech milestones

big wins

Two Houston aerospace companies — Intuitive Machines and Venus Aerospace — have reached testing milestones for equipment they’re developing.

Intuitive Machines recently completed the first round of “human in the loop” testing for its Moon RACER (Reusable Autonomous Crewed Exploration Rover) lunar terrain vehicle. The company conducted the test at NASA’s Johnson Space Center.

RACER is one of three lunar terrain vehicles being considered by NASA for the space agency’s Artemis initiative, which will send astronauts to the moon.

NASA says human-in-the-loop testing can reveal design flaws and technical problems, and can lead to cost-efficient improvements. In addition, it can elevate the design process from 2D to 3D modeling.

Intuitive Machines says the testing “proved invaluable.” NASA astronauts served as test subjects who provided feedback about the Moon RACER’s functionality.

The Moon RACER, featuring a rechargeable electric battery and a robotic arm, will be able to accommodate two astronauts and more than 880 pounds of cargo. It’s being designed to pull a trailer loaded with more than 1,760 pounds of cargo.

Another Houston company, Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. The engine, being developed in tandem with Ohio-based Velontra — which aims to produce hypersonic planes — combines the functions of a rotating detonation rocket engine with those of a ramjet.

A rotating detonation rocket engine, which isn’t equipped with moving parts, rapidly burns fuel via a supersonic detonation wave, according to the Air Force Research Laboratory. In turn, the engine delivers high performance in a small volume, the lab says. This savings in volume can offer range, speed, and affordability benefits compared with ramjets, rockets, and gas turbines.

A ramjet is a type of “air breathing” jet engine that does not include a rotary engine, according to the SKYbrary electronic database. Instead, it uses the forward motion of the engine to compress incoming air.

A ramjet can’t function at zero airspeed, so it can’t power an aircraft during all phases of flight, according to SKYbrary. Therefore, it must be paired with another kind of propulsion, such as a rotating detonation rocket engine, to enable acceleration at a speed where the ramjet can produce thrust.

“With this successful test and ignition, Venus Aerospace has demonstrated the exceptional ability to start a [ramjet] at takeoff speed, which is revolutionary,” the company says.

Venus Aerospace plans further testing of its engine in 2025.

Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. Photo courtesy of Venus Aerospace

METRO rolls out electric shuttles for downtown Houston commuters

on a roll

The innovative METRO microtransit program will be expanding to the downtown area, the Metropolitan Transit Authority of Harris County announced on Monday.

“Microtransit is a proven solution to get more people where they need to go safely and efficiently,” Houston Mayor John Whitmire said in a statement. “Connected communities are safer communities, and bringing microtransit to Houston builds on my promise for smart, fiscally-sound infrastructure growth.”

The program started in June 2023 when the city’s nonprofit Evolve Houston partnered with the for-profit Ryde company to offer free shuttle service to residents of Second and Third Ward. The shuttles are all-electric and take riders to bus stops, medical buildings, and grocery stores. Essentially, it works as a traditional ride-share service but focuses on multiple passengers in areas where bus access may involve hazards or other obstacles. Riders access the system through the Ride Circuit app.

So far, the microtransit system has made a positive impact in the wards according to METRO. This has led to the current expansion into the downtown area. The system is not designed to replace the standard bus service, but to help riders navigate to it through areas where bus service is more difficult.

“Integrating microtransit into METRO’s public transit system demonstrates a commitment to finding innovative solutions that meet our customers where they are,” said METRO Board Chair Elizabeth Gonzalez Brock. “This on-demand service provides a flexible, easier way to reach METRO buses and rail lines and will grow ridership by solving the first- and last-mile challenges that have hindered people’s ability to choose METRO.”

The City of Houston approved a renewal of the microtransit program in July, authorizing Evolve Houston to spend $1.3 million on it. Some, like council member Letitia Plummer, have questioned whether microtransit is really the future for METRO as the service cuts lines such as the University Corridor.

However, the microtransit system serves clear and longstanding needs in Houston. Getting to and from bus stops in the city with its long blocks, spread-out communities, and fickle pedestrian ways can be difficult, especially for poor or disabled riders. While the bus and rail work fine for longer distances, shorter ones can be underserved.

Even in places like downtown where stops are plentiful, movement between them can still involve walks of a mile or more, and may not serve for short trips.

“Our microtransit service is a game-changer for connecting people, and we are thrilled to launch it in downtown Houston,” said Evolve executive director Casey Brown. “The all-electric, on-demand service complements METRO’s existing fixed-route systems while offering a new solution for short trips. This launch marks an important milestone for our service, and we look forward to introducing additional zones in the new year — improving access to public transit and local destinations.”

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This article originally ran on CultureMap.