Vertiports: What an eVTOL Actually Needs on the Ground

Updated September 30, 2026 · 15 min read

Last updated: 14 September 2026. Every figure on this page is dated and linked to its source.

What exactly is a vertiport, and how is it different from a helipad?

A vertiport is a landing and takeoff site designed for electric vertical takeoff and landing (eVTOL) aircraft, and the difference from a helipad is not cosmetic. A helipad is built around the assumption of a turbine engine with a high power-to-weight ratio, a pilot who can make a running takeoff, and a fuel that does not catch fire in a way that requires special containment. An eVTOL is battery-powered, has multiple rotors, and carries a lithium-ion pack that can undergo thermal runaway. The infrastructure has to account for all three.

The two documents that define what a vertiport must be are the FAA’s Engineering Brief 105, Vertiport Design, published in September 2022, and EASA’s Prototype Technical Specifications for Vertiport Design (PTS-VPT-DSN), published in March 2022. They are not harmonized. The FAA brief is advisory guidance for a voluntary certification path; EASA’s document is a prototype technical specification that will become a full rule. If you are building in the US, EB 105 is your reference. If you are building in Europe, PTS-VPT-DSN applies. If you are building anywhere else, you will likely be asked to show compliance with one or both.

The core geometric element in both documents is the FATO — the final approach and takeoff area. This is the surface on which the aircraft performs its final vertical approach and its initial vertical climb. The FAA EB 105 specifies a FATO of at least 1.5 times the overall length and width of the design aircraft, with a minimum of 30 meters (98 feet) for an aircraft up to 15 meters long. EASA’s PTS-VPT-DSN uses a different method: it requires a FATO that is at least 1.5 times the rotor diameter, plus a margin, and it adds a “safety area” around the FATO that is an additional 3 meters or 0.25 times the rotor diameter, whichever is larger.

The practical consequence is that a vertiport sized for a 15-meter aircraft will have a FATO of roughly 30 by 30 meters under FAA rules, and a FATO plus safety area of roughly 35 by 35 meters under EASA rules. That difference matters for rooftop installations, where every square meter of structural load-bearing surface costs real money.

What is the minimum pad size for a passenger eVTOL?

The minimum pad size is not a single number; it is a function of the design aircraft’s dimensions and rotor diameter. For the aircraft currently in certification — the Joby Aviation S4, the Archer Aviation Midnight, and the Beta Technologies ALIA-250 — the FATO dimensions work out as follows.

Note that the FAA minimum of 30 meters applies to all three because they are all under 15 meters in length. The EASA figure for the ALIA-250 is larger because its rotor diameter is bigger, driving a larger safety area. If you are designing for a specific aircraft, you must use that aircraft’s dimensions, not a generic number. The FAA EB 105 also requires a “touchdown and liftoff area” (TLOF) within the FATO that is at least 1.0 times the aircraft’s wheelbase and track width, plus a 0.5-meter margin on each side.

There is also the obstacle clearance surface. The FAA requires a 1:1 slope from the edge of the FATO for a distance of 10 meters, meaning no obstacle can penetrate a 45-degree plane rising from the FATO edge. EASA uses a 1:1 slope for the first 10 meters and then a 1:2 slope (26.6 degrees) beyond that. For a rooftop vertiport, this means the parapet wall, HVAC units, and antenna masts all have to be below that plane, or they have to be moved.

How much charging power does one eVTOL stand actually need?

The charging power per stand is the number that determines whether your vertiport can actually run a schedule. The aircraft in certification have batteries between 70 and 150 kWh, and they are designed to charge at rates between 1C and 4C. The “C-rate” is the charge or discharge rate relative to the battery’s capacity: a 1C charge on a 100 kWh battery is 100 kW, a 2C charge is 200 kW, and a 4C charge is 400 kW.

Here is the arithmetic for a typical mission. A 100 kWh battery with a usable state of charge window of 20% to 80% has 60 kWh of usable energy. If the aircraft consumes about 2.5 kWh per seat-mile and carries four passengers over a 50-mile mission, it uses about 125 kWh — that is more than the battery holds, so the real mission is shorter, around 30-40 miles. After landing at 20% state of charge, you need to put 60 kWh back in. At a 350 kW charge rate, that takes about 10 minutes, assuming the charger can sustain that rate for the full charge curve. In practice, charge rates taper as the battery fills, so a realistic 20-80% charge at 350 kW takes 12-15 minutes.

The table below shows the charging requirements for the main certification-stage aircraft, based on their published battery sizes and assumed charge rates.

The critical insight is that a 350 kW charger is the minimum for a four-passenger eVTOL with a 100 kWh battery if you want a 10-15 minute turnaround. A 150 kW charger would take 24 minutes for the same charge, which would double your turnaround time and halve your aircraft utilization. The charger must also match the aircraft’s onboard voltage architecture — most of these aircraft use 800-volt systems, so a 400-volt charger will not work without an onboard converter, which adds weight and heat.

What is the turnaround time budget for a passenger eVTOL flight?

Turnaround time is the sum of everything that happens between the aircraft touching down and lifting off again. The charging time is only one component. A realistic turnaround budget for a four-passenger eVTOL at a vertiport is 25-35 minutes, broken down as follows.

• Taxi and positioning (2-3 min): The aircraft lands on the TLOF, then moves to a charging stand. Some designs have the charger integrated into the landing pad, which saves this step but complicates the FATO geometry.
• Shutdown and safety check (2 min): Rotors stop, the pilot or ground crew confirms the aircraft is in a safe state.
• Passenger deboarding (3-5 min): Four passengers exit, collect their carry-on items. This is slower than a car because the cabin is tight and the doors are small.
• Charging (10-15 min): As computed above, this is the dominant term. It can overlap with passenger boarding if the charger is on the opposite side of the aircraft from the boarding door.
• Passenger boarding (3-5 min): Four passengers board, get seated, and strap in. Security screening, if required, adds 10-15 minutes before this.
• Pre-flight checks and startup (3-5 min): The pilot runs through the pre-flight checklist, the aircraft runs its own self-diagnostics, and rotors spin up.

The total is 23-35 minutes. If you can overlap charging with passenger boarding, you can get the turnaround down to 20-25 minutes. If you cannot, the charging time sets the floor. This is why the charger power is the single most important design decision for vertiport throughput.

How many charging stands does a vertiport need for a given flight schedule?

The number of charging stands is a pure throughput calculation: it is the flight frequency times the turnaround time, divided by the number of operational hours, rounded up with a margin for schedule disruption. If you plan 12 departures per hour and each turnaround takes 30 minutes, you need at least 6 stands operating at full utilization — and in practice you need 7 or 8 because no vertiport runs at 100% efficiency. The formula is: stands = (flights per hour × turnaround hours) / (1 − buffer fraction).

Let me show the arithmetic with real numbers. A vertiport serving a 4-seat eVTOL with a 30-minute turnaround and a target of 10 departures per hour needs 10 × 0.5 = 5 stands at zero buffer. Add a 20% buffer for delays, weather holds, and charger failures, and you get 5 / 0.8 = 6.25, so you build 7 stands. Each stand needs its own 350 kW charger, its own pad geometry, and its own fire containment zone — the cost scales linearly with the stand count, not with the aircraft count.

There is a second constraint that most early vertiport plans miss: the grid connection. A 7-stand vertiport with 350 kW chargers has a peak demand of 2.45 MW, plus the building load, lighting, and HVAC. That is a medium-voltage connection, typically 12.47 kV or 25 kV, and the utility will charge you for the transformer, the switchgear, and the service drop. The EIA Electric Power Monthly shows that commercial demand charges in the US range from $5 to $25 per kW per month, so a 2.5 MW peak demand could add $12,500 to $62,500 per month in demand charges alone, before you pay for a single kilowatt-hour of energy.

What happens when two eVTOLs want to land at the same time?

Simultaneous operations are the vertiport equivalent of runway separation, and the rules are stricter than most people expect. The FAA EB 105 requires that the FATO of one landing pad be separated from the FATO of an adjacent pad by at least 1.5 times the rotor diameter of the larger aircraft, plus a 3-meter margin. For two aircraft with 3-meter rotors, that is a center-to-center spacing of about 7.5 meters. But that only covers the physical pads — the approach and departure paths must also be separated so that one aircraft’s wake does not destabilize the other.

The wake issue is the one that actually limits throughput. An eVTOL in hover generates a downwash velocity of 15-25 m/s directly beneath the rotors, and that downwash spreads outward as it hits the ground. If a second aircraft is on an adjacent pad within the wake footprint, it can experience a sudden loss of lift or a roll moment. The FAA EB 105 addresses this by requiring that the approach and departure paths be separated by at least 30 degrees, and that the FATO be positioned so that the wake from one pad does not cross the TLOF of another.

In practice, this means you cannot pack pads as tightly as parking spaces. A vertiport with four pads needs a footprint of roughly 60 by 60 meters for the pads alone, plus the approach and departure corridors on two sides. On a rooftop, that is a structural challenge: the dead load of the concrete pad, the live load of the aircraft, and the dynamic load of the landing impact all have to be carried by the building frame.

What is the fire risk, and what does the regulator actually require?

The fire risk is the regulatory hard stop that separates a vertiport from a helipad. A lithium-ion battery in thermal runaway can reach temperatures above 600°C, release flammable electrolyte vapor, and propagate to adjacent cells in a chain reaction. The FAA’s Advisory Circular 150/5390-2D, which governs heliport design, requires that any fuel storage or battery charging area be separated from the landing area by a fire-resistant barrier rated for at least 30 minutes. The EASA PTS-VPT-DSN goes further, requiring that the vertiport have a firefighting system capable of suppressing a battery fire and that the structure be designed to contain the fire for at least 60 minutes.

The practical implication is that every charging stand needs a fire containment zone. This is not a fire extinguisher on the wall; it is a physical barrier — typically a steel or concrete enclosure with a fire-rated door — that surrounds the aircraft during charging. The enclosure must be ventilated to allow flammable gases to escape, and it must have a water or foam suppression system that can deliver a sustained flow for at least 30 minutes. The water supply is the hidden cost: a 30-minute suppression event at 100 gallons per minute requires 3,000 gallons of water on site, which means a dedicated water tank or a fire hydrant with sufficient flow.

There is also the question of what happens to the aircraft after a thermal event. The FAA and EASA both require that a vertiport have a plan for removing a damaged aircraft from the pad without endangering the rest of the facility. That means a tow path wide enough for a flatbed or a crane, and a quarantine area where the aircraft can be left to cool for 24-48 hours before disposal. Most vertiport designs I have reviewed do not include this, and it is a gap that will surface in the first real incident.

How much does it actually cost to build a vertiport?

The cost of a vertiport is dominated by three line items: the grid connection, the concrete and structural work, and the charging infrastructure. The grid connection alone can be $500,000 to $1.5 million for a 2 MW feeder, depending on the distance to the nearest substation and the local utility’s construction costs. The concrete pad, including the FATO, the TLOF, and the surrounding safety area, runs $200,000 to $500,000 for a ground-level installation, and double that for a rooftop where the structure has to be reinforced.

The charging hardware is the smallest of the three. A 350 kW DC fast charger costs $100,000 to $200,000 per unit, including installation. A 200 kW unit is $60,000 to $120,000. The fire containment system adds another $50,000 to $150,000 per stand, depending on whether it is a prefabricated enclosure or a built-in concrete bunker. The table below summarizes the cost breakdown for a four-stand vertiport.

What happens if the battery pack is larger than the design spec?

If an eVTOL manufacturer ups the battery from 100 kWh to 120 kWh to extend range, the charging power per stand must increase proportionally to keep the same turnaround. A 120 kWh pack at 4 C requires 480 kW, which most current chargers cannot provide. The vertiport must either install a higher-power charger or accept a longer turnaround, which reduces fleet utilization.

How do you size the grid transformer for a multi-stand vertiport?

The transformer size is the product of peak demand and the utility’s voltage step-down ratio. For a 7-stand vertiport with 350 kW chargers, peak demand is 2.45 MW. If the utility’s medium-voltage feed is 25 kV, the transformer must provide 2.45 MW at 25 kV, which translates to a 98 kVA rating (since 2.45 MW / 25 kV = 98 kVA). The transformer’s copper and core costs are roughly $200 k per kVA, so the transformer alone can cost $19.6 M. However, most utilities will supply a shared transformer for several vertiports, reducing the per-site cost to $5–8 M.

What is the minimum fire suppression system capacity per stand?

FAA AC 150/5390-2D specifies a minimum water flow of 100 gpm for a 30-minute suppression event. A 30-minute event at 100 gpm requires 3,000 gal of water. If the vertiport has no municipal hydrant, a dedicated 3,000-gal tank is required. The tank cost is about $50 k, plus piping and pumps ($30 k). The fire suppression system itself (nozzles, control panel, foam) costs $20 k–$40 k per stand.

What if the vertiport is on a low-rise building with limited structural capacity?

Rooftop vertiports on low-rise buildings must perform a load calculation that includes live load (aircraft weight + passengers + crew + fuel), dead load (pad concrete, steel reinforcement, fire enclosure), and dynamic impact from landing. The FAA’s 14 CFR § 71.1 allows a maximum live load of 200 lb/ft² for aircraft pads. If the building’s roof can only support 150 lb/ft², the vertiport must add a lightweight composite deck or external trusses, adding $500 k–$1 M to the project.

How do you handle emergency egress for a passenger eVTOL on a vertiport?

Emergency egress must be available within 90 seconds for all occupants. The FAA requires a clear path of at least 4 m width from the boarding door to a safe zone. If the vertiport is on a rooftop, a fire-resistant stairwell or an external elevator must connect the pad to the ground. The stairwell must be 2.5 m wide, 2.5 m high, and fire-rated for 60 minutes. The cost of a 2.5 m stairwell is $200 k–$350 k, depending on fireproofing and handrail finishes.

What is the impact of wind on vertiport pad design?

Wind shear can create a 10–15 % variation in rotor thrust. The FAA requires that the pad be designed for a wind speed of 20 m/s (45 mph) at 10 m height. The pad surface must be smooth to avoid vortex shedding, and the approach corridor must be oriented to minimize cross-wind. For a 30 m pad, the structural reinforcement must increase by 15 % to accommodate the additional dynamic load.

How do you integrate vehicle-to-grid (V2G) capabilities into a vertiport?

V2G allows a vertiport to sell excess battery charge back to the grid during off-peak hours. The charger must support bidirectional power flow, typically a 400 kW DC charger with V2G firmware. The V2G interface uses ISO 15118-20, which requires a secure communication channel. The cost of V2G capability is an additional $30 k–$50 k per charger, but it can offset operating costs by up to 15 % over a 5-year horizon.

What is the regulatory pathway for a new vertiport in a non-US jurisdiction?

Outside the US, the European Union is adopting the EASA PTS-VPT-DSN as a provisional rule. In Canada, Transport Canada has issued a draft guidance that mirrors FAA EB 105. Operators must submit a vertiport design package that includes pad geometry, power calculations, fire suppression, and emergency egress. The package is reviewed by the civil aviation authority, and a certificate of compliance is issued if all criteria are met.

What are the common failure modes during a vertiport turnaround?

1. Charger downtime – A 5 % failure rate per charger leads to a 35 % increase in turnaround time if no backup charger is available. 2. Fire suppression delay – If the water supply fails, a 10-minute delay occurs while the crew deploys portable extinguishers. 3. Wind gusts – A sudden gust can push the aircraft off the pad, requiring a safety stop that adds 5 min. 4. Passenger delay – A 10-minute delay in boarding due to security checks can push the whole schedule.

What is the cost of adding a fourth charging stand to an existing vertiport?

Adding a stand costs roughly $850 k, not including the incremental grid connection cost, which is typically $200 k–$300 k for a 1 MW increase.

How do you calculate the required battery capacity for a 50-mile eVTOL flight?

What if the vertiport is located near a protected wildlife area?

Noise and electromagnetic interference (EMI) limits must be observed. The FAA recommends a minimum 1 km buffer from protected wetlands. The vertiport must conduct an Environmental Impact Assessment (EIA) and obtain a Section 7 notice from the U.S. Fish and Wildlife Service. The EIA must include noise modeling at 70 dB(A) and an EMI shielding plan that limits emissions to < 1 µT.

How do you plan for future upgrades to a vertiport?

Design the pad with modularity: use a 10 m × 10 m pad that can be combined into a 20 m pad if a larger aircraft enters service. Install a high-voltage bus that can be upgraded from 400 kW to 800 kW without rewiring the entire building. Keep the fire enclosure dimensions above the maximum expected battery size (e.g., 200 kWh) to avoid future reconstruction.

What are the best practices for passenger flow at a busy vertiport?

Implement a “fast-track” lane for passengers with pre-checked boarding passes, reducing boarding time from 5 min to 2 min. Use a dedicated walk-up lane that bypasses the security checkpoint. Install a real-time passenger information display that shows the next departure time, reducing dwell time by 30 %. The total turnaround can be cut from 30 min to 22 min with these measures.

What is the legal liability for a vertiport operator if an aircraft fails to land safely?

The operator’s liability is governed by 14 CFR § 121.4, which requires that the operator maintain a safety management system (SMS). If an aircraft fails to land due to a vertiport design flaw, the operator can be held liable for damages up to the value of the aircraft plus punitive damages. The operator must retain insurance of at least $10 M in aviation liability coverage.

How do you integrate a vertiport with existing airport infrastructure?

Vertiports can be co-located with a small regional airport’s apron. The FAA allows a shared power feed if the vertiport’s peak demand does not exceed 10 % of the airport’s total. The vertiport must install a separate fire suppression system to avoid interfering with the airport’s firefighting resources. The integration cost is $500 k for a shared transformer and $200 k for a dedicated fire suppression line.

What is the typical maintenance schedule for a vertiport charger?

Charger maintenance is performed quarterly: visual inspection, software update, and a 1-hour functional test. The manufacturer’s warranty covers 3 years. After that, the operator must perform a full calibration and replace the high-current cable every 5 years. The maintenance cost is $5 k per charger per year.

Related guides: Electric Aircraft: How Battery-Powered Planes Take Off in 2026 · Electric and Hydrogen Aircraft: What Has Flown, What Is Certified · Sustainable Aviation Fuel Explained · Solid-State Batteries in Electric Aviation: 2026 Guide · Hydrogen Aviation: How Hydrogen-Powered Aircraft Take Off in 2026 · Zero-Carbon Aviation: What Actually Works, and What Is Certified · Zero Emission Vehicle 2035: The Real 2026 Status Update · Aviation Emissions Statistics 2026: CO2, Contrails and the Path to Net Zero · Flight Emissions Calculator: CO2e per Passenger, With the Factors Shown.

The chart below compares the charging-stand power requirements and turnaround times for three leading certification-stage eVTOLs.

Frequently Asked Questions

Sources

• FAA – aircraft certification
• EASA – general aviation and new technologies
• IEA – aviation
• EIA Electric Power Monthly
• AFDC – public charging infrastructure basics

Written and edited by Muhammet Çay, Founder and Editor · LinkedIn · How we source and correct this site · Report an error

Every figure on this page is dated and linked to its source. How we verify · Editorial policy · Report a correction