Electric air taxis are already flying over Manhattan. Joby Aviation completed its first demonstration flights from JFK in April 2026. The legal architecture governing them is still being assembled, and the founders and investors moving fastest through this frontier are the ones most directly exposed to what the law has not yet decided.
In April 2026, Joby Aviation completed a series of demonstration flights between John F. Kennedy International Airport and several Manhattan heliports — Downtown Skyport, West 30th Street, East 34th Street — under the FAA's Electric Aircraft Integration Pilot Program. The flights carried no paying passengers. Full commercial operation requires a type certificate from the FAA that does not yet exist for eVTOL aircraft in the powered-lift category, and a Part 135 air carrier approval on top of that. What the demonstration did accomplish was to show that the aircraft work, that the heliport infrastructure can support them, and that New York City intends to be where this industry begins. The legal questions that follow from those facts are less tidy than the flights themselves.
While the aircraft are impressive, the litigation surrounding them is revealing. Joby Aviation sued Archer Aviation in November 2025, alleging trade secret theft by a former executive who crossed to a competitor. Archer countersued in early 2026. Wisk Aero — now wholly owned by Boeing — had already litigated similar claims against Archer in 2021, a case that settled in 2023 when Boeing invested in Archer and integrated Wisk's autonomous technology into Archer's development roadmap. These are not peripheral disputes. They reflect how intensely the intellectual property embedded in eVTOL design — propulsion systems, flight control software, battery management, rotor geometry — is contested, and what happens when teams move between competitors carrying institutional knowledge that the law treats as property.
This article examines three areas where the legal landscape for electric air taxis will require careful attention: the regulatory framework still being written by the FAA and state and local authorities; the intellectual property conflicts already playing out in federal court; and the liability questions that commercial passenger operations will force into the open. It is written for general informational purposes and does not constitute legal advice. The specific regulatory requirements, IP strategies, and liability exposures relevant to any particular company or individual depend on facts that require professional analysis of the specific situation.
The regulatory frontier — powered-lift aircraft and the law that is still being written
The FAA now formally recognizes powered-lift as an aircraft category distinct from airplanes and helicopters. The final rule, issued in 2024 and refined through Advisory Circular 21.17-4 in 2025, sets performance-based airworthiness standards for the design, production, and certification of eVTOL aircraft. The standards address battery redundancy and thermal runaway containment, rotor and motor failure survivability across all phases of flight, fatigue specifications for propeller and rotor systems, and automated emergency landing requirements. These standards exist. What does not yet exist is a fully certified eVTOL passenger aircraft: no company has yet received a type certificate for commercial passenger operations in the United States, though Joby and several competitors are in the final stages of that process. The timeline for certification is measured in months to a year or two, not in decades — but it has not yet arrived.
For commercial passenger operations, the regulatory burden extends beyond aircraft certification. An operator seeking to carry paying passengers must also obtain a Part 135 air carrier certificate, which governs the maintenance, crew qualification, operations, and safety management of air carrier service. Part 135 was written for conventional aircraft; its application to eVTOL operations is being adapted by FAA rulemaking and guidance that is still in active development. The FAA's Special Federal Aviation Regulation for powered-lift aircraft, issued in late 2024, addresses pilot training and qualification — including the question of which training rules apply during vertical phases of flight versus forward flight phases, since an eVTOL moves through both in every mission. A pilot qualified to fly a helicopter under one set of standards and a fixed-wing aircraft under another may find that the powered-lift qualification structure occupies ground that neither prior credential quite covers.
At the New York City level, the regulatory picture adds further layers. The Port Authority of New York and New Jersey controls the three major commercial airports and several heliports where eVTOL operations are being planned. The federal eIPP program is funding infrastructure improvements — charging systems, ground handling, air traffic coordination — at those facilities. NYC's Economic Development Corporation is a formal participant in the current demonstration program. Local regulations governing heliport operations, noise, and urban airspace management are also in play: New York State and New York City have their own environmental review requirements that apply to new aviation infrastructure, and the community interests that have historically shaped helicopter regulation in this city will not be absent from the process as air taxis become operational. A company planning to operate commercially in the New York market should treat federal certification as one layer of a multi-jurisdictional compliance obligation, not as the single threshold.
A company planning to operate commercially in New York should treat federal certification as one layer of a multi-jurisdictional compliance obligation, not as the single threshold.
Intellectual property in the eVTOL sector — trade secrets, patents, and the cost of moving fast
The eVTOL industry is spending as much time in federal court as in the air. Joby Aviation filed suit against Archer Aviation in November 2025, alleging that a former executive who moved from Joby to Archer brought confidential business strategy, partnership terms, and aircraft design specifications that Joby considers trade secrets under the federal Defend Trade Secrets Act, 18 U.S.C. § 1836. Archer responded in early 2026 with counterclaims alleging that Joby had concealed its use of Chinese-manufactured components from investors and regulators. Whatever the merits of either claim, the litigation is a vivid illustration of how competitive intelligence is treated in this sector: the knowledge that a senior engineer carries about propulsion architecture or battery management is not free to move with the person who holds it.
The Joby-Archer dispute echoes an earlier case that has already shaped the industry's structure. Wisk Aero — then a joint venture, now a wholly-owned Boeing subsidiary — sued Archer in 2021, alleging that key employees who joined Archer from Wisk had taken thousands of confidential files, including detailed engineering specifications for autonomous flight systems. The case settled in 2023. The settlement saw Boeing invest in Archer and integrate Wisk's autonomous technology into Archer's development program. The outcome was consequential not just for the parties: it signaled that trade secret litigation in the eVTOL space carries material business consequences — potential injunctions against product development, licensing obligations, and investment relationships restructured around the resolution of a claim. A company in this sector that does not maintain disciplined trade secret protocols is operating without a basic asset protection structure.
The patent landscape in eVTOL is equally contested. Archer Aviation has amassed more than 1,000 patents through its own development program and through acquiring the intellectual property portfolio of Lilium, the German eVTOL startup that went through insolvency in 2024. In 2026, Vertical Aerospace of the United Kingdom filed a patent infringement suit against Archer, alleging that Archer's Midnight aircraft incorporates tilt-rotor technology covered by Vertical Aerospace's patent holdings. The dispute illustrates a structural tension in the sector: the race to accumulate broad patent positions is itself generating infringement exposure as overlapping claim coverage becomes apparent at scale. For founders and investors in eVTOL companies, a strong patent portfolio is both a competitive asset and a liability inventory — the same patents that provide protection against one competitor may disclose prior art or claim coverage that another competitor has already registered first.
The knowledge that a senior engineer carries about propulsion architecture or battery management is not free to move with the person who holds it.
Liability and the passenger relationship — who is responsible when something goes wrong
Commercial passenger air taxis will carry people for compensation, which means they will carry tort liability. The liability framework for commercial aviation in the United States is mature — the Montreal Convention governs international operations; domestic claims proceed under federal and state tort law with significant federal preemption in many areas — but it was written for conventional aircraft and applies to eVTOL operations in ways that have not been fully tested. The threshold question in any air taxi incident will be whether the operator owed the duty of care applicable to a common carrier, a private carrier, or something in between. A company operating under Part 135 as an air carrier faces the common carrier standard — the highest standard of care in transportation law — which means it must demonstrate that it took every precaution consistent with the practical operation of the service to prevent harm.
The technology embedded in eVTOL aircraft introduces liability exposure that prior aviation cases did not need to address. An aircraft that relies on fly-by-wire control systems, battery management software, and partially autonomous flight management creates a chain of potential defendants that extends from the airframe manufacturer to the software developer to the battery supplier to the operator. A battery failure causing a forced landing may give rise to product liability claims against the battery manufacturer under the Restatement (Third) of Torts: Products Liability — strict liability for an unreasonably dangerous product — even if the failure mode could not have been predicted by the operator. A software malfunction in an autonomous stabilization system may raise questions about which party had design authority over the specific decision that led to the incident, and whether the operator was in a position to detect or correct the defect in the ordinary course of maintenance. These chains of liability are long, and the applicable insurance coverage structures are still being built.
Insurance for eVTOL operations is in its earliest stages. Conventional aviation hull and liability policies were not designed for aircraft that combine helicopter, airplane, and drone characteristics in a single platform. Insurers are writing new policy forms tailored to powered-lift operations, incorporating coverage for battery-related incidents, cyber risk from software-controlled flight systems, and liability exposures arising from autonomous or semi-autonomous flight phases. Premiums are high and claims data is essentially nonexistent; actuarial models for the risk profile of a platform that has never before operated commercially are necessarily speculative. For operators, this means that the coverage available today may not fully protect against the liability exposure of commercial operations — and that the gap between covered risk and actual exposure requires the kind of contractual and structural risk allocation that counsel who understand both aviation and corporate indemnification structures need to build into every operator agreement, ground handling arrangement, and maintenance contract.
The chains of liability in eVTOL operations are long, and the applicable insurance coverage structures are still being built.
What founders and investors should address now
The most consequential legal work in the eVTOL space right now is being done before the aircraft fly commercially, not after. Entity structure, IP ownership, and employment agreements drafted carefully before a company accumulates significant technical development work are the instruments that determine whether that work is genuinely owned and protectable when it matters. A Delaware corporation with properly executed IP assignment agreements from every founder, employee, and contractor — and with a documented trade secret protection program in place — is in a fundamentally different legal position than one that moved fast, built excellent technology, and assumed the ownership questions would sort themselves out. They do not sort themselves out. They surface in diligence, in litigation, and in the financing rounds where a sophisticated investor's counsel will conduct exactly the ownership inquiry the company should have answered for itself long before.
For investors considering positions in eVTOL companies, IP due diligence requires specific attention to the provenance of the technical team. When a founding team or key technical hire came from a competitor, the investor's counsel should review the employment agreements, non-disclosure agreements, and non-compete obligations the employee carried out of the prior employer — and should assess whether the company's technical development relied on knowledge or materials that may be subject to a trade secret claim. The Joby-Archer and Wisk-Archer disputes are not anomalies; they reflect how aggressively IP is enforced in a sector where the entire competitive advantage is technical. A company that has not conducted this audit of its own provenance is presenting a material risk that may not be visible until a complaint is filed.
Digital assets and data ownership are a third planning area that eVTOL operations will force to the surface. An autonomous or semi-autonomous flight system generates continuous operational data — sensor readings, flight path logs, mechanical telemetry, passenger movement data — that has commercial value and regulatory significance. Who owns that data, what obligations attach to its retention and disclosure, and how it is treated in the event of a sale, merger, or insolvency are questions that should be addressed in the company's foundational documents, in its operator agreements, and in its privacy and data governance policies. New York's SHIELD Act and applicable federal data protection frameworks impose specific obligations on companies that collect biometric and personal data — and a passenger-facing air taxi service will collect both. The planning work that addresses these obligations is not a compliance checkbox; it is part of the asset architecture of the business.
A company that has not conducted an audit of its own IP provenance is presenting a material risk that may not be visible until a complaint is filed.