Electric vertical takeoff and landing (eVTOL) aircraft represent the potential next wave of transportation infrastructure — air taxis that can ferry passengers between city centres and airports, or across congested urban areas, without the need for runways. The promise: a 20-minute air taxi ride that replaces a 90-minute car journey in a congested city, at a cost approaching a premium taxi fare as the industry scales.
The global urban air mobility (UAM) market is pre-revenue for commercial passenger service; total eVTOL investment has exceeded $15 billion since 2015, and the sector’s leaders — Joby Aviation, Archer Aviation, Lilium, Vertical Aerospace, and Wisk — are racing to become the first FAA-certified and commercially operating eVTOL service.
eVTOL Business Models
Air Taxi Operations (Target Business Model)
The primary intended revenue model: operate a network of eVTOL aircraft as an air taxi service, charging per-seat or per-flight. Revenue = flights per aircraft per day × passengers per flight × revenue per passenger. Asset utilisation (flights per day) and network density (number of launch routes) are the primary scale drivers.
Joby Aviation has modelled a target price of $3–5 per mile — significantly above a car but positioned to be competitive with premium ground transportation options as the fleet scales and per-unit economics improve. A single Joby aircraft flying 6 hours per day at 3–5 passengers per flight could generate $300–$500K+ annual revenue per aircraft.
OEM and Aircraft Sales
Some eVTOL companies may sell aircraft to third-party operators (airlines, helicopter operators, ride-sharing companies) rather than operating their own networks. Archer has a strategic relationship with United Airlines — United has committed to purchasing Archer aircraft for its own network. This OEM model trades higher-margin operations for faster scaling without capital intensity.
Military and Government Applications
Joby Aviation acquired Uber Elevate and has a significant contract with the US Air Force (Agility Prime programme) for military utility eVTOL. Government contracts provide non-commercial revenue while certification work continues — and validate the aircraft’s performance characteristics.
Key Companies in eVTOL
- Joby Aviation — most advanced US eVTOL company by certification progress; Toyota strategic investor ($894M invested); FAA Part 135 air carrier certificate received; targeting commercial operations 2025–2026; manufacturing facility in Ohio with DOE grant
- Archer Aviation — Midnight aircraft in Type Certification with FAA; United Airlines order; Abu Dhabi investment; targeting commercial launch 2025; manufacturing scaling in San Jose
Pre-Revenue Metrics for eVTOL Companies
FAA Type Certification Progress
The single most critical milestone. Type Certification (TC) from the FAA is required before commercial passenger operations can begin. The FAA created a new Part 23 amendment and ASTM standards specifically for eVTOL. Both Joby and Archer are in the final stages of the TC process as of 2024.
Flight Hours and Aircraft Performance
Total cumulative flight hours demonstrate aircraft reliability and performance. Joby’s prototype has logged 1,000+ flight hours. Aircraft performance (range, speed, noise levels) vs specification demonstrates engineering execution.
Cash Runway and Capital Efficiency
All eVTOL companies are pre-revenue and burning cash. Cash on hand ÷ quarterly burn rate = runway (quarters until capital exhaustion). Joby and Archer both have partnerships and government contracts that extend their runway; but additional capital raises will be required.
Manufacturing Readiness and Unit Cost
The commercial economics depend on achieving low per-unit manufacturing costs as production scales. Target manufacturing cost per aircraft is $1–2M (vs current development cost of $10M+). Achieving that requires supply chain development, automation, and significant production volume — the challenges that have historically derailed aerospace startups.
Strategic Partnerships and Commitments
Airlines (United, Delta, American), ride-sharing companies (Uber, which sold Uber Elevate to Joby), and automotive OEMs (Toyota, Stellantis) have committed capital and purchase orders. These partnerships validate commercial demand and provide non-dilutive capital.
Certification and Timeline Challenges
The path to commercial operations is slower than early projections. Original timelines of 2024 commercial launch have slipped to 2025–2026 for the leaders. The FAA has unprecedented review requirements for a new aircraft category, and the battery technology, motor controllers, and fly-by-wire systems are being validated for the first time.
Regulatory milestones to watch:
- Type Certificate (TC) — aircraft design approved
- Production Certificate (PC) — manufacturing process approved
- Air Carrier Certificate (Part 135) — operational certificate to carry passengers
- Infrastructure — vertiport construction in target cities (New York, Los Angeles, Dubai, etc.)
Joby has made the most progress, having received its Part 135 certificate. The remaining timeline depends on completing TC and building out vertiport infrastructure — both capital-intensive and time-consuming.
Key Comparisons
Related Glossary Terms
- Free Cash Flow — negative FCF and cash runway management is the key risk for pre-revenue eVTOL
- Capital Expenditure — aircraft development, manufacturing buildout, and vertiport infrastructure
- Return on Invested Capital — eventual ROIC on the aircraft fleet determines long-term viability
- Price-to-Sales Ratio — pre-revenue valuation requires DCF-based analysis of future fleet economics