Eagle X in motion

Ready-to-Fly Bionic Ornithopter

ESD Eagle X

An Unprecedented Flight Experience

IFA3 IFA Innovation AwardsLaunching on Kickstarter
Eagle X / Film

Extraordinary by Nature.

Powered by
the wingbeat.

100,000Continuous wingbeat cycles

At maximum throttle

Follow your instinct.

Aerobatic Fight1m minimum turning radius

Wings.
No propellers.

Blade-freeMore wingbeat. Less buzz.

Lose the buzz.

Eco-FriendlyShare the sky.

A complete aircraft.
Ready for your next chapter.

Quick-ReleasePack. Carry. Fly.

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Flight, from first principles.

A bird-inspired airframe. A real RC flying experience.
Watch Eagle X in motion.

Watch video
Eagle X, front view with raised wings
Eagle X / Film
Flapping — Eagle X

Flap for
power.

Rise with every wingbeat.

Eagle X tail control

Small movement.
New direction.

Control begins at the tail.

Eagle X in motion

Just wings.
And open sky.

Flapping wings. No spinning propellers.

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Your bird.
Your way.

A modular platform for curious minds and experienced hands.

See from a new perspective

Explore an optional DJI O4 camera setup with a suitable mounting solution. Camera equipment is not included.

Fly with your own radio

Use a compatible ELRS 2.4 GHz setup. Match firmware major versions and check AETR mapping.

Choose a compatible battery

Battery weight, balance and electrical specifications all matter. Ask ESD before fitting an alternative pack.

Print a nose of your own

Explore custom 3D-printed nose designs. Confirm fit and flight balance before flying.

Red Eagle X

Blaze Falcon Red

IFARecognized
for a new kind of flight.
WINNERNext & Emerging Tech
HONOREEBest in Design
HONOREESustainability

Around the world

EAGLE X in the Spotlight

Explore media coverage and creator encounters from the exhibition floor.

CHIP covering EAGLE X

CHIP

Technology media

Bird-inspired flight, explained up close.

CHIP introduces the flapping-wing concept and discusses gliding, maneuverability and modular expansion at the exhibition.

20 BEST Things I Saw… covering EAGLE X

20 BEST Things I Saw…

Creator encounter

See the wings in motion.

A show-floor look at EAGLE X, with close-ups of the aircraft and its handheld controller.

KANATLI DRONE! covering EAGLE X

KANATLI DRONE!

Creator encounter

Nature-inspired design, down to the details.

Explore the wing mechanism, tail and eagle-shaped nose.

IFA völlig verrückt! covering EAGLE X

IFA völlig verrückt!

Exhibition walkthrough

A closer look at the controls.

Follow an exhibition walkthrough featuring EAGLE X and a hands-on look at its controller.

Diese Technik hätte ich… covering EAGLE X

Diese Technik hätte ich…

Exhibition walkthrough

Explore EAGLE X at the booth.

A detailed show-floor walkthrough of the aircraft, wing movement and controller at the AliExpress exhibition area.

Tech Week covering EAGLE X

Tech Week

Media coverage

From the exhibition floor to a closer look at the mechanism.

This Polish-language segment pairs presenter commentary with booth footage of EAGLE X and its flapping wings.

Know your aircraft

Specifications.

A closer look at the airframe, power system and controls.

1.6 mWINGSPAN
63 inches
EAGLE X specifications
Fuselage length1 m / 39.37 in
Standard takeoff weightApprox. 790 g / 1.74 lb
Maximum takeoff weight950 g / 2.09 lb
Flight battery850 mAh lithium battery
Battery voltage15.2 V nominal / 17.4 V full
Control rangeWithin 100 m and direct visual range
Height limit150 m*
Flight modesStabilized flight / Stunt flight
Transmitter optionsMode 1 (right throttle) / Mode 2 (left throttle)
Built-in receiverELRS 2.4 GHz · Receiver firmware 3.6.4

*Product height limit, not a statement of permitted flight altitude. Applicable local limits may be lower.

Materials & flight time

Carbon fiber composite, reinforced nylon, PCCF, PPA-CF, TPU, aluminum alloy, stainless steel, alloy steel and high-strength fiber-reinforced nylon wing fabric.

Up to approximately 15 minutes with the standard battery. Actual flight time varies with conditions and flying style.

Support

Radio setup & Frequently asked questions

Setup, flight and ownership.

Built-in receiver

ELRS 2.4 GHz

Serial receiver · Receiver firmware 3.6.4

Timing & pricing

When will EAGLE X launch on Kickstarter, and when will orders ship?

We are targeting a Kickstarter launch in December 2026, with the first production batches estimated to ship globally from Q1 2027.

How much will EAGLE X cost?

The $799–$1,399 range shown on esdyn.com reflects different configurations and crowdfound phases; It is not a final price list. Kickstarter backer pricing will be announced when the campaign goes live, and it will be tiered by campaign stage — so what you pay depends on when you pledge. 

You can subscribe at esdyn.com to receive a launch notification. Subscribing does not reserve a unit, lock in a price, or guarantee early-bird availability.  We use your email only to send launch and campaign updates, and you can unsubscribe at any time. See our Privacy Policy for details.

Measured performance

Can I fly EAGLE X in strong winds?

We do not recommend flying in Beaufort 6 (39–49 km/h) or above.

Radio & setup

Can I use my own transmitter?

Yes, with a compatible setup. EAGLE X has an ExpressLRS 2.4 GHz serial receiver running firmware 3.6.4. Your radio needs a compatible ELRS 2.4 GHz internal or external transmitter module; being a 2.4 GHz radio alone is not enough.

Send ESD your radio model, module model and ELRS firmware version so we can help check compatibility.

Which ELRS versions can bind?

The transmitter module and receiver need the same major firmware version. For the supplied 3.6.4 receiver, use compatible 3.x transmitter-module firmware. For example, 3.4.2 and 3.6.4 share a major version; 4.0.1 and 3.6.4 do not.

Follow the appropriate binding procedure for your hardware. Ask ESD if you are unsure.

How do I map channels and check direction?

The mapping is AETR: CH1 Aileron, CH2 Elevator, CH3 Throttle, CH4 Rudder. EAGLE X uses the first three channels.

Following ESD guidance, check the bare fuselage with wings and tail removed. Start with throttle at its minimum and keep hands clear of moving parts. Confirm each stick’s output and aircraft response. Reverse the corresponding channel in the transmitter if required, then check again.

Disconnect the battery before fitting the wings and tail. If the correct response is unclear, contact ESD before flying.

Can I use Mode 1 or Mode 2?

Choose Mode 1 (right-hand throttle) or Mode 2 (left-hand throttle) when ordering. You can also change the stick mode yourself later, following the transmitter manufacturer’s instructions.

Changing modes can involve physical stick adjustments as well as transmitter settings. After any change, confirm AETR channel mapping and control direction before flying. Ask an experienced technician if needed.

Flying & safety

Is it suitable for a first-time RC pilot?

Stabilized flight mode supports learning, but flying still takes practice. New pilots should get help from an experienced RC pilot and begin with basic maneuvers in a clear, open area.

Which battery should I use for aerobatics?

Use the ESD high-performance custom battery. The standard pack is 850 mAh. Ask ESD before fitting another battery: weight, balance and electrical specifications matter, not just capacity.

Does blade-free mean safe around children or pets?

Blade-free means there are no spinning propellers. The wings, moving mechanism and aircraft can still cause injury. Keep spectators, children and pets clear of the launch area and flight path. Children need adult supervision.

Orders & support

What does the reservation deposit cover?

The $10 reservation is a deposit, not the full aircraft price. No physical product ships with the reservation. Product purchase is completed separately when the Kickstarter campaign opens.

Email signup is free and separate from the reservation. See the current reservation terms for applicable benefits and conditions.

Who can help with setup and product questions?

Contact ESD with your aircraft or transmitter details. Ask us about compatibility, replacement parts and applicable after-sales terms before making a purchase decision.

About ESD

ESD (EagleSight Dynamics) develops bionic flying robots inspired by birds. From aerodynamics to intelligent flight control, we turn research into aircraft made to be flown.

Our Team

Our team brings together PhD researchers from Shanghai Jiao Tong University and professionals with experience at DJI, Huawei and ByteDance. With Eagle X, we're bringing ready-to-fly bionic flight to people who love to explore, build and learn.

Flight footage

Real flights.
Real people.

Launches, maneuvers and time in the air. Take a closer look at the flying experience.

Pilot holding EAGLE X and a controller before launch

FIELD LAUNCH

From hand to sky.

A real launch, out in the open.

EAGLE X turning against an open sky

AEROBATIC FLIGHT

Control under pressure.

A closer look at maneuverability.

A pilot and onlookers watching EAGLE X in flight

FLIGHT DEMO

Take control. Turn heads.

A pilot and spectators following EAGLE X in flight.

Flight footage from EAGLE X field sessions and demonstrations.

Launching on Kickstarter

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