POTUS’ eVTOL dominance tested in Texas-ISSUES?

JDA Aviation Technology Solutions

 

On June 2025 the White House released an Executive Order entitled “UNLEASHING AMERICAN DRONE DOMINANCE”. In that seminal decree, the President commanded—

The below article chronicles what the Port of San Antonio is doing to meet POTUS’s order; here are some of Port’s actions:

  • Developing a purpose built vertiport and using its 1,900acre Tech Port campus as an AAM sandbox
  • leveraging its 1,900acre “Tech Port” campus—already a mixed defense/tech/aviation ecosystem—as a real-world AAM test environment, emphasizing low-altitude operations below 5,000 feet
  • Landing pads sized and configured for multiple eVTOL types
  • Charging stations and power infrastructure for electric aircraft
  • Support facilities for testing, maintenance, and operations
  • Proposing specific test routes, procedures, and use cases (passenger, cargo, emergency)
  • DOT eVTOL Integration Pilot Program (eIPP) envisions a Texas Triangle network—Dallas–Fort Worth, Austin, San Antonio, Houston—with extensions to rural communities. Port San Antonio is the natural San Antonio anchor for that network.

  • The ATC system
  • Be used to test deconfliction with existing traffic
  • Support FAA development of new low altitude rules and procedures for AAM
  • Serve as a platform for autonomy and advanced navigation concepts as those mature under the eIPP umbrella
  • Use cases being emphasized:
  • Urban air taxi services (short haul passenger trips)
  • Regional passenger transportation between Triangle cities
  • Cargo and logistics, especially time sensitive and high value goods
  • Emergency medical response and critical supply transport
  • Convening OEMs, operators, infrastructure, and research partners on campus

  • eVTOL OEMs (e.g., Wisk Aero is explicitly referenced in Port materials as a conceptual partner/aircraft type. It was formed in 2019 as a partnership between Boeing and Google co-founder Larry Page’s Kitty Hawk aircraft company. Wisk is a wholly owned subsidiary of Boeing)
  • Operators interested in early route testing
  • Infrastructure and vertiport developers who can help refine standards and layouts
  • Academic and research partners for safety, autonomy, and integration studies
  • The Port is actively participating in AAM showcases and legislative briefings (e.g., Austin AAM showcase with lawmakers and transportation executives), positioning itself as the San Antonio testbed within a broader Texas strategy.
  • Enabling noise, safety, and airspace studies that will feed FAA rulemaking and local planning

Publicly available material doesn’t yet spell out specific consultant names or detailed noise study scopes, but the structure of the eIPP and the Port’s stated role implies several lines of work:

  • Noise and community impact studies:
  • Vertiport siting and network planning:
  • Procedural and route refinement
Integrating all of these technical requirements using multiple experts is very tricky. A big, brand new eVTOL operation (vertiports, flight tracks, carrier(s), integration into the NAS, safety in all phases of flight, community reaction(s), coordination with all of the players, etc.) requires A SINGLE HUB ABLE TO HANDLE all of those disparate aspects on a real time basis. For example, to design a departure route for an eVTOL from vertiports,

  • basics of the vertiport-
  • Pad assignment and geometry:
  • Ground traffic and sequencing:
  • Turnaround status:
  • Completion of charging, loading, security, passenger boarding, door status.
  • Ground infrastructure status:
  • Availability of chargers, FATO/TLOF lighting, markings, FOD checks, emergency access.
  • the air traffic profile must include the geometry of the obstructions proximate to the take-off,
  • the operating specifications for the eVTOL must be able to meet the required take-off profile
  • Weight and balance:
  • Passenger/cargo load, fuel/energy state, CG location, performance limits at current mass.
  • Weight and balance:
  • Passenger/cargo load, fuel/energy state, CG location, performance limits at current mass.
  • Critical system checks (propulsion, flight controls, avionics, detect-and-avoid, comms) and MEL/dispatch constraints.
  • the ability of carrier’s pilot to control the eVTOL in this complex and new ecosystem under the various requirements
  • Passenger/cargo load, fuel/energy state, CG location, performance limits at current mass.
  • Power/energy state
  • Meteorological and environmental variables
  • Wind:
    Speed/direction at pad and along initial climb, gusts, crosswind/tailwind limits.
  • Temperature and pressure:
    Density altitude, impact on lift and power margins.
  • Visibility and ceiling:
    VFR/IFR status, cloud base vs planned departure profile, local minima.
  • Precipitation and icing:
    Rain, hail, icing potential vs aircraft certification.
  • Turbulence and microclimate effects:
    Urban canyons, rooftop vortices, heat plumes, nearby structures.
  • Noise-sensitive areas and constraints:
    Local curfews, preferred noise abatement headings, altitude gates.
  • Airspace, ATC, and route variables
  • Airspace classification and structure:
    Class B/C/D/E/G, proximity to controlled airports, special use of airspace, TFRs.
  • Departure corridor definition:
    Lateral path (track), vertical profile (altitude gates), speed restrictions, climb gradient.
  • Integration with conventional traffic:
    Separation from IFR/VFR flows, helicopter routes, SIDs/STARs, and traffic patterns.
  • ATC clearance and constraints:
    Assigned heading/route, initial altitude, frequency, transponder/ADSB code, lost-comms procedures.
  • Strategic flow management:
    Slot times, metering, demand–capacity balancing for the corridor.
  • Detect-and-avoid / UTM integration:
    Conflict detection with other eVTOL/UAS, geo-fences, dynamic reroutes.
  • Navigation, CNS, and automation variables
  • Navigation performance:
    Required navigation performance (RNP), GNSS availability, augmentation (SBAS/GBAS), urban multipath risk.
  • Communication links:
    VHF/8.33, data links, C2 links for higher automation levels, redundancy.
  • Surveillance:
    ADSB/Mode S status, ground sensor coverage, UTM surveillance inputs.
  • Automation mode and authority:
    Manual vs managed vs highly automated departure, mode engagement points, pilot workload.
  • Operational, regulatory, and human variables
  • Operational ruleset:
    Part 135/91 equivalent, AAM-specific ops specs, vertiport SOPs.
  • Pilot/crew status:
    Currency, fatigue, training for specific vertiport procedures and corridors.
  • Passenger/cargo constraints:
    Dangerous goods, medical payload sensitivity, time-critical missions.
  • Emergency and contingency options:
    Abort points, alternate pads, diversion vertiports, forced landing areas, OEI escape routes.

Add to the complexity of this calculus, (1)the FAA is in the process of defining many of the regulatory standards, (2) the OEMs’ first true operational flights, as realistic as tests are, may result in unexpected outcomes, (3) most of the above listed variables have been controlled 100% by the OEM, the addition of new players may well stress these flights and (4) unknown unknowns. It’s a daunting but absolutely required task. Without help, your test may actually harm the progress of the UNLEASHING AMERICAN eVTOL Dominance.

How San Antonio could shape air taxi future

PORT SAN ANTONIO is positioning itself as a testing ground for emerging air taxi technology as Texas joins a federal pilot program.

Why it matters: San Antonio could play a role in a national effort to develop advanced air mobility (AAM), which includes a system of low-flying electric aircraft moving people and cargo.

Catch up quick: The TEXAS DEPARTMENT OF TRANSPORTATION was selected this month for one of eight projects under the Federal Aviation Administration’s Advanced Air Mobility Integration Pilot Program [eIPP].

  • The Texas plan calls for regional routes linking Dallas, Austin, and San Antonio, with Houston to follow.
  • TxDOT tells Axios that the Alamo City is expected to play a key role in the network, potentially supporting medical, cargo and passenger routes, though specific operations are still being worked out with the FAA.
  • Port San Antonio president and CEO JIM PERSCHBACH tells Axios the federal pilot program gives Texas room to test aircraft and airspace systems without overhauling national aviation rules.

State of play: Work is already underway. Land is being cleared at Port San Antonio for a future vertiport — where electric aircraft can take off, land and recharge.

  • The Port’s focus is less on the aircraft itself and more on how to manage that airspace at scale, Perschbach says.
  • “It’s more like navigating a parking lot than a highway,” Perschbach says of low-altitude flying.
  • Austin-based SkyGrid is working with the Port on tools to help operators understand conditions and avoid hazards, mapping routes that use sensors, weather data, and AI.

Between the lines: Perschbach argues San Antonio’s sprawl and mix of aerospace, cybersecurity and emerging AI-related talent make it a strong testing site and a place where the technology could solve transportation gaps.

  • The bigger shift, he argues, is moving away from a luxury “flying car” model toward something closer to an extension of public transportation.

Reality check: VIA Metropolitan Transit tells Axios in a statement that it remains focused on expanding bus and rapid transit service but is “encouraged by emerging technologies” that could strengthen connectivity.

What’s next: Test flights could begin relatively soon, with early uses in health care and cargo, Perschbach says.

  • Routine passenger service — especially for everyday commuters — faces a longer runway.

Sandy Murdock

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