Understanding the Fly America Act is important for all researchers planning government-funded travel. Graphic by Miguel Tovar/University of Houston

Commercial aviation witnessed a transformative shift following World War II. Initially reserved for military purposes, commercial air travel began to flourish as civilians embraced its convenience. This surge in air travel highlighted the necessity for regulating the industry.

In response, the Federal Aviation Administration, or FAA, emerged from the Federal Aviation Act of 1958, later becoming a component of the Department of Transportation under the Department of Transportation Act in 1967.

The evolution of air travel regulation continued in 1974 with the enactment of the Fly America Act. Designed to safeguard U.S. interests in international air travel funded by the government, this act prioritizes U.S. airline carriers. This initiative serves both to support domestic airlines and promote the U.S. aviation industry on a global stage when passengers travel on federal funds.

What some might not know is this legislation can impact researchers and their organizations.

Importance for researchers

Adhering to the Fly America Act applies not only to federal government employees but also their dependents, grantees, and other travelers funded by federal resources. Even foreign researchers visiting the U.S. under federally funded grants must choose U.S. flag air carriers for their travel.

A U.S. flag air carrier should not be confused with a traditional flag carrier. These are airlines that have historically been government-owned or are otherwise closely tied to the identity of a particular country, like British Airways or Aeroméxico. U.S. flag air carriers encompass a wide range of airlines, including smaller entities like Air Wisconsin Airlines and Avelo, a new carrier based in Houston. You can find a comprehensive list of U.S. flag air carriers here.

Navigating exceptions

While the Fly America Act carries strict guidelines, exceptions do exist. Instances where no U.S. flag air carriers serve the destination or where such carriers would extend the trip by over 24 hours warrant special consideration. In these cases, maintaining meticulous records is essential in order to validate the use of non-U.S. airlines. A list of exceptions can be found here.

Open Skies Agreements introduce another facet to the Fly America Act. These agreements between the U.S. Government and other countries enable travelers, including researchers, to use foreign air carriers for government-funded international travel. Several countries, including those in the European Union, Australia, Switzerland, and Japan, maintain Open Skies Agreements. Flights on British Airways are no longer permitted under an Open Skies Agreement due to the United Kingdom’s exit from the European Union. Proper documentation is essential when claiming a Fly America Act exception, even if covered under an Open Skies Agreement. Detailed travel itineraries, internal agency forms, and evidence of a Fly America exception must be included in travel receipts.

The Big Idea

Compliance with the Fly America Act ensures your travel expenses are reimbursable on government grants. It’s important to remember that cost and convenience are not exceptions to the act. A thorough understanding of Fly America Act’s provisions and exceptions is a must before you book your next flight.

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This article originally appeared on the University of Houston's The Big Idea. Sarah Hill, the author of this piece, is the communications manager for the UH Division of Research.

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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.