Max and David reunite for UAV News Talk episode 434, bringing listeners a wide-ranging discussion on the latest UAV, eVTOL, and rotorcraft developments.

FAA Advisory Circular on Powered-Lift

They start with the FAA’s release of AC 21-17-4, the long-awaited certification guidance for powered-lift aircraft. Max explains how this 64-page document emphasizes performance-based outcomes rather than prescriptive design rules. Much of the content resides in Appendix A, covering equipment from cockpit voice recorders to flight data recorders. The standout requirement: aircraft must withstand impacts from a four-pound bird—a test historically performed with frozen chickens fired from “chicken guns.” David points out that eVTOLs, operating at lower altitudes, will likely encounter more bird strikes than traditional aircraft, making the requirement especially relevant.

Joby Acquires Blade Passenger Business

The hosts then dive into Joby Aviation’s $125 million acquisition of Blade’s passenger business. Blade, known for helicopter and charter flights around Manhattan, gives Joby an existing customer base, operational infrastructure, and valuable experience. Max and David consider how quickly wealthy corporate travelers might switch from Sikorsky and Bell helicopters to Joby’s quieter eVTOLs. They expect a mixed fleet for years, with pricing likely used as an incentive to encourage adoption. The acquisition excludes Blade’s medical transport division but secures its premium commuter routes.

China’s Two-Ton eVTOL

China’s aviation industry stunned observers with the unveiling of a two-ton eVTOL. Although the aircraft carries 880 pounds of payload—comparable to a Robinson R44—Max notes the figure is underwhelming relative to the aircraft’s size. David highlights its 124 mph cruising speed and one-hour endurance, branding it part of China’s new “low-altitude economy.” Max contrasts U.S. and European reserve requirements for electric aircraft, noting that European operators can fly with only a 10-minute reserve, boosting usable endurance. They also reference the FAA’s MOSAIC rules, which propose pilot certificates requiring just 20 hours of training for simplified eVTOL controls—though both hosts believe real-world training times will be closer to 40 hours.

Ukraine’s Drone Bicycle Rescue

In a dramatic wartime innovation, Ukraine used drones to deliver electric bicycles to a soldier trapped behind enemy lines. After multiple attempts, including one foiled by a landmine, the soldier finally escaped thanks to the unusual delivery. Max appreciates this rare “good news” drone story, contrasting it with the common use of UAVs as weapons. David likens the aerial surveillance role to Vietnam-era A-1 Skyraiders providing overwatch during rescues.

Boeing Lawsuit and Startup Dispute

The discussion shifts to Boeing’s legal troubles with Zunum Aero, a Seattle-based hybrid-electric startup. After bankruptcy, Zunum sued Boeing for intellectual property theft. Though the case has bounced between rulings, the Ninth Circuit...

BVLOS rules, school safety drones, NASA’s Mars helicopters, and Michigan’s 40-mile drone research skyway take center stage in UAV News Talk episode 433, hosted by Max Trescott and David Vanderhoof. The discussion begins with the newly introduced LIFT Act—short for Leading Innovation in Flight Technology Act—proposed by Representative Jen Kiggans of Virginia on July 24, 2025. The bill would compel the Department of Transportation to accelerate FAA rulemaking for Beyond Visual Line of Sight (BVLOS) drone operations. The hosts explore how AI could be used to speed approvals, contrasting deterministic AI rule-checking with generative AI’s potential for errors, and weighing how this fits—or clashes—with the FAA’s traditionally deliberate safety-first approach.

Next, the conversation shifts to Florida’s plan to trial armed drones for school security. Developed by Campus Guardian Angel, these drones would be stored on-site in protective boxes and launched within seconds to engage an active shooter—potentially firing powder pellets to incapacitate the suspect. Max and David raise practical questions about launch authority, piloting, targeting in chaotic conditions, and operational control from a central dispatch center. They note the program’s $1,000-per-month cost and early deployments in four Florida school districts and one Texas university.

Video of the Week: A vivid example of drones aiding law enforcement—a Scottsboro, Alabama thermal video showing the nighttime capture of an attempted murder suspect hiding beside railroad tracks. The video’s bright, detailed imagery stands out from typical black-and-white thermal feeds, illustrating drones’ growing value in search and apprehension.

From terrestrial policing to interplanetary exploration, the episode dives into NASA’s ambitious proposal to send six helicopters to Mars. Building on the Ingenuity mission’s unexpected 72-flight success, the new fleet could haul 11 pounds each, operate autonomously, and even act as communication relays to extend range. The hosts discuss rotor speed adjustments for Mars’ thin atmosphere, coaxial rotor benefits, and lessons from Ingenuity’s final hard landing caused by a rotor strike.

Back on Earth, Michigan unveils its M Air Research Skyway—a 40-mile-long drone corridor enabling BVLOS operations, swarm testing, and drone traffic management (UTM) development. The University of Michigan’s engineering programs, private partners, and state agencies will collaborate to test delivery drones, advanced operations, and multi-drone coordination in a controlled yet realistic environment. Max notes the unique scale compared to most U.S. university programs, and David speculates on potential eVTOL or medical delivery applications.

The episode wraps with a look at China’s booming “low-altitude economy” and its newly recognized profession: drone flight planner. With over 247,000 licensed drone operators and 2.17 million drones registered, China sees...

In Episode 432 of UAV News Talk, Max Trescott and David Vanderhoof explore the evolving role of drones in public events, law enforcement, and emergency response—highlighting both their growing utility and the risks of poor coordination. Titled "Drone Fireworks, Police UAVs, and a Black Hawk Crash in Texas," this episode covers breaking drone news from California and Texas, trends in UAV policing, and innovations in helicopter autonomy from Sikorsky and Skyryse.

The episode opens with Max sharing a personal story about diving back into ham radio and noting the crossover with FPV drone pilots who use amateur radio frequencies for extended range. It’s a humorous but insightful segue into the broader theme: drones are becoming essential tools in unexpected places, from backyard hobbies to high-stakes public safety operations.

🎆 Drones Replace Fireworks in San Jose

The first major story is about San Jose, California, where a last-minute shift from traditional fireworks to a July 4th drone light show occurred following a major fireworks factory fire in the Central Valley. With pyrotechnics canceled, city officials quickly pivoted to a drone display. The mayor noted that the cost of drone shows is “comparable to fireworks,” depending on the number of drones used. Max and David discuss how drone shows have grown increasingly sophisticated, but viewers should be aware that real-time transitions between drone formations are slower than what’s shown in sped-up YouTube clips.

Drone light shows are not just a visual marvel—they’re also a safer and more sustainable alternative to traditional fireworks. This switch is becoming part of a national trend, particularly in fire-prone areas like California. But San Jose’s drone integration didn’t stop at entertainment.

🚨 Police Drones Monitor Illegal Fireworks

San Jose also deployed police UAVs to monitor for illegal fireworks across the city, joining another California municipality doing the same. Max shares how drone surveillance is increasingly used to spot unlawful activity on holidays like the Fourth of July. David warns hobbyists against the temptation to fly drones into fireworks displays for viral footage, noting that it’s both dangerous and illegal.

These developments tie into a larger trend: law enforcement agencies across California are embracing drones as essential tools for first response. Max and David detail programs in San Jose, Alameda County, Elk Grove, and Los Angeles, where drones are now dispatched to emergency scenes—sometimes arriving before officers 74% of the time, as was the case in Elk Grove.

Drones are being used to safely observe volatile situations like domestic disputes and fleeing suspects. In one example from San Leandro, UAVs tracked a suspect hiding under a box in a backyard, guiding officers to the location with minimal risk. Applications also include search and rescue, missing persons, and real-time crowd monitoring.

👁️ Privacy Concerns and the Future of Police UAVs

While the benefits are clear, David raises privacy concerns, such as whether UAV-collected evidence is admissible in court or if warrants are required. The discussion highlights