Cruise, controlled.

Technology that makes the
dream possible

Making dream
take flight
Passengers4 passengers + Pilot
Range100mi + reserves
SpeedUp to 200 mph
Sound45dBA at Cruise
All-electric0 operating emissions
1
Electric Vertical Take-off
and Landing (eVTOL)

Joby Aircraft

Fast, Flexible Travel

With vertical takeoff and landing, Joby can fly over traffic and reach destinations in minutes.

Quiet by design

We perfected our acoustic footprint to have an aircraft as quiet as a conversation for city-friendly travel.

Zero operating emissions

All-electric and energy-efficient, it’s the cleanest way to reach your destination.

Six electric motors

Built-in redundancy ensures safer, and reliable flight every time.

Propeller rotation
PositionHorizontal
Rotation90º angle
Altitudeat 657 ft
Speed increase+12%
Propeller rotation

Vertically rotated propellers generate upward thrust for takeoff and landing, enabling stable, helicopter-like flight in tight urban spaces.

PositionVertical
Rotation90º angle
Altitudeat 657 ft
Speed Increase+12%
Propeller rotation

Horizontally rotated propellers generate upward thrust for takeoff and landing, enabling stable, helicopter-like flight in tight urban spaces.

Safely soaring skywardSafely soaring skyward
Safely soaring skywardSafely soaring skyward
2
Safety Layers

Safely soaring skyward

Almost a decade of certification work with FAA.Almost a decade of certification work with FAA.
Direct-drive motor ensures reliability
Thousands of testing hours for each part.Thousands of testing hours for each part.
Thousands of testing hours for each part.
Redundant systems, always on standby.Redundant systems, always on standby.
Redundant systems, always on standby.
Effortless piloting, with adaptive flight systems.Effortless piloting, with adaptive flight systems.
Effortless piloting, with adaptive flight systems.
Safety In
Direct-drive motor ensures reliability
Thousands of testing hours for each part.
Redundant systems, always on standby.
Effortless piloting, with adaptive flight systems.

Almost a decade of certification work with FAA.

Our aircraft is in the final stages of the same certification process that underpins today's commercial aviation system, meeting similar safety standards to jetliners.

Thousands of testing hours for each part.

We rigorously test every piece of our aircraft's hardware and software, from the simplest piece of carbon fiber to fully integrated systems.

Redundant systems, always on standby.

We designed our aircraft's powertrain, flight controls, and electronics to be fully redundant, with six dual-wound propulsion motors and four battery packs.

Effortless piloting, with adaptive flight systems.

From takeoff to cruise, controls stay the same as software interprets intent and maintains safe, predictable flight throughout.

3
Sound

Designed to be quiet

Propeller design

Joby propeller features slow tip speed and large diameter

Sound waves

Low intensity & low frequency waves has very low sound profile

Our engineers has dedicated years to delivering an aircraft that is quiet enough to land in your neighborhood unnoticed.

World-class facilityMarina, CA
4
Engineering

Making Dreams

We design, engineer and manufacture our critical aircraft components in-house. That means everything you see (and don't see) has been quality ensured by our own team.

Our engineering process is built to ensure maximum precision and quality control, perfected by Toyota’s know-how and experts involved in every step.

Fuselage autoclave
Marina, CA

Everything you see (and don't see) has been quality ensured by our own (obsessive) team.

Process & Capabilities

We follow a fast, cyclical process of designing, building, and testing entirely in-house — allowing us to move quickly through each phase, iterate rapidly, and deliver breakthrough technology at speed.

4.1Performance Engineering

We’re pushing the boundaries of what’s possible — delivering best-in-the-world performance through ultra-lightweight, highly optimized design. From airframes and actuators to powertrains and electronics, every component is engineered in-house with a relentless focus.

4.2Equipment-level Testing

We conduct equipment-level testing at speed, with the capability to support the full spectrum of development and certification testing. Our extensive network of state-of-the-art labs enables rapid iteration, deep validation, and unmatched test coverage across systems.

4.2Precision and Quality

Our manufacturing process is designed for scalability without compromising precision or quality — made possible through close collaboration with Toyota’s world-renowned engineering and production systems.

4.4Made in America

Designed, engineered, built and tested in America.

Enginnering Highlights
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Battery technology is lightweight and modular for safety. Each of the four packs isolates faults internally, and system-wide redundancy keeps the aircraft airborne even during a component-level failure.

Learn more
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Airframe combines titanium, magnesium, and carbon fiber for unmatched strength-to-weight. Robotic 3D printing enables complex parts with high precision and efficiency.

Learn more
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Battery technology is lightweight and modular for safety. Each of the four packs isolates faults internally, and system-wide redundancy keeps the aircraft airborne even during a component-level failure.

video-3video-3
video-3video-3

Battery technology is lightweight and modular for safety. Each of the four packs isolates faults internally, and system-wide redundancy keeps the aircraft airborne even during a component-level failure.

video-4video-4
video-4video-4

Battery technology is lightweight and modular for safety. Each of the four packs isolates faults internally, and system-wide redundancy keeps the aircraft airborne even during a component-level failure.

video-5video-5
video-5video-5

Battery technology is lightweight and modular for safety. Each of the four packs isolates faults internally, and system-wide redundancy keeps the aircraft airborne even during a component-level failure.

video-6video-6
video-6video-6

Battery technology is lightweight and modular for safety. Each of the four packs isolates faults internally, and system-wide redundancy keeps the aircraft airborne even during a component-level failure.

Nothing but clear
skies aheadNothing but clear
skies ahead
Nothing but clear
skies aheadNothing but clear
skies ahead
5
Sustainable technology

Nothing but clear
skies ahead

Zero

operating emissions during flight, improving air quality in urban communities.

90%

fewer emissions than a helicopter

40%

fewer emissions than the average car

Based on a trip distance of 37 miles in the Los Angeles area. Average car is defined as a gas-powered combustion vehicle. Emissions account for both WTW and TTW (upstream and operating).

84%

of electricity powering our primary facilities came from renewable sources in 2024

We are proud to lead the way in developing eVTOL technology for quieter, cleaner skies for all.
6
Technical Breakdown

Joby S4 Specifications

A technical overview of the Joby S4, detailing our aircraft core specifications, performance capabilities, propulsion architecture, and overall system design.

Summary

Performance

Dimensions

Fleet

Fig. 6.1Overhead view of aircraft
Fig. 6.2Direct drive motor breakdown
Fig. 6.3Side view diagramFront view diagram
Fig. 6.5Skyport diagram
Aircraft typePowered-lift Aircraft
Seating capacity1 pilot + 4 passengers
Luggage capacity4 carry on bags
Propulsion6 electric tilt-propeller units
with 5-blade rotors
Power source4 battery packs
Battery systemHigh-density, lithium-ion polymer batteries
Flight controlsFly-by-wire unified flight control
AirframeCarbon-fiber composite
RangeUp to 100 mi (161 km), incl. energy reserves
SpeedUp to 200 mph (174 knots)
Max weight2400 kg, 5300 lbs (gross)
Service ceiling10,000 ft (3048 m)
Noise footprint45dBA at Cruise, from 1640ft (500m)
65dBA at Landing, from 330ft (100m)
Charge timeTypically less than 10 min
Taxiingpropelled
Data as ofJune 2025
Fleet8 airworthy aircraft
Flights2,000+
Flight hours450+
Miles flown40,000+
Bringing back the wonder of
flight to your daily commuteBringing back the wonder of
flight to your daily commute
Bringing back the wonder of
flight to your daily commuteBringing back the wonder of
flight to your daily commute

Bringing back the wonder of
flight to your daily commute

Breathtaking city viewsSeating for four passengersAll-electric quiet flight