Ornadyne Is Building a Drone That Wants to Be Mistaken for a Crow
The Los Angeles startup builds ornithopters - aircraft that fly by flapping, not spinning. Its bet is that the best way to survive a sky full of drone hunters is to look like the one thing those hunters are trained to ignore: a bird.
A soldier looks up at a gray afternoon sky and sees a crow. It banks, flaps, drifts on a thermal, and heads off past the treeline. Nothing about it holds his attention, which is exactly the point. The crow is a machine. It is carrying a camera. And it was built by a four-person company in Los Angeles that has decided the smartest thing a surveillance drone can do is bore you.
That company is Ornadyne, a defense-tech startup in Y Combinator's Spring 2026 batch. Its flagship product, the O1, is an ornithopter - an aircraft that flies by flapping its wings rather than spinning a propeller. It is roughly the size of a real bird, shaped like a crow, and designed to carry a small reconnaissance camera into places where a normal drone would be heard, seen, and shot down.
The idea sounds like a novelty until you hear the reasoning behind it, at which point it starts to sound less like a gimmick and more like a loophole.
01The blind spot in the sky
Modern militaries have spent years building counter-UAS systems - the sensors and software that detect and track hostile drones. Those systems are tuned to a specific set of signatures: the whine of rotor blades, the radar cross-section of a fixed wing, the steady mechanical hum of a quadcopter holding position. They are very good at spotting the things they were built to spot.
The trouble is the sky is also full of birds, and birds keep tripping the alarms. To keep a detection system usable, engineers teach it to dismiss that clutter. Birds become, in the language of signal processing, noise - the stuff you filter out so you can see the thing you care about.
Birds are actually the noise of counter-UAS detection systems. The goal is to create something that blends in by being in the noise.- Geourg Kivijian, Co-Founder & CEO
That is Ornadyne's entire thesis in one sentence. Instead of racing to out-stealth the detectors - a game of smaller radar signatures and quieter motors that the whole industry is already playing - the company opts out of the race. If the O1 looks like a crow, flies like a crow, and sounds like a crow, then the systems built to ignore crows will do exactly that. The drone hides not by being invisible, but by being unremarkable.
There is a second, quieter advantage buried in the same move. A drone that reads as wildlife can fly lower and linger longer without changing the behavior of the people it is watching. A soldier who hears a quadcopter takes cover; a soldier who sees a bird keeps doing whatever he was doing. That gap between detected and dismissed is where reconnaissance actually happens, and it is the gap Ornadyne is trying to widen. Better data, in other words, is a downstream effect of being ignored.
02Why flapping beats spinning
A propeller is loud because it has to move a lot of air fast at a single point. It is visually obvious because nothing in nature has a spinning disc on top of it. A flapping wing solves both problems at once: it distributes the work of generating lift across a slower, larger motion that reads, to a human eye and to a microphone, as an animal rather than a machine.
The catch has always been endurance. When DARPA and AeroVironment built the Nano Hummingbird more than a decade ago, ornithopters could stay aloft for minutes - a remarkable demo, but not a useful tool. What changed is unglamorous: batteries got better. Researchers in Europe and China pushed flapping-wing flight times from minutes toward hours, which is the threshold where a curiosity turns into equipment you can actually plan a mission around.
Ornadyne moved the moment that curve crossed the line. The O1 has a wingspan of about a meter and a payload budget of 50 to 100 grams - currently spent on a visual reconnaissance camera. The company reports a working flying prototype at Technology Readiness Level 4 to 5, meaning the core technology has been demonstrated in a relevant environment. What makes that number interesting is how fast they reached it.
Illustrative. Bars represent relative detectability by acoustic and visual profile, not measured test data.
03Two friends, a lot of hardware
Ornadyne's two founders have been friends since middle school, which helps explain how they built a flying aircraft in roughly two months. That speed is not luck. It is years of preloaded work finally pointed at a single object.
CEO Geourg Kivijian spent more than two years designing, building, and testing flapping-wing robots for his master's thesis at Cal Poly, work that was recognized in AIAA and IEEE publications. He then went to NASA's Jet Propulsion Laboratory, where he worked on Mars Sample Return coordination, and to Astrolab, building lunar rovers. His co-founder and CTO, Armen Arakelyan, engineered Starship components at SpaceX and previously led machining at USC's Rocket Propulsion Laboratory, the group behind an amateur rocketry altitude record of around 144 kilometers.
Our biggest goal right now is to connect with users and people who can give us direct feedback.- Armen Arakelyan, Co-Founder & CTO
It is a specific kind of resume. Both founders come from places where the physics is the hard part and the tolerance for hand-waving is low. Neither Mars sample capsules nor Starship parts forgive a rough estimate. That instinct shows up in how Ornadyne is going to market: build the flying thing first, then find the people who will tell you what is wrong with it.
The two-month sprint is worth sitting with. In most hardware, the gap between a whiteboard and a working aircraft is measured in years, and the reason is rarely a single hard problem - it is the hundred small ones, each of which has to be solved in the right order. A founder who has already lived inside flapping-wing dynamics for a thesis, and a co-founder who has machined flight-grade parts under aerospace tolerances, skip most of that learning curve. What looks like speed is really the discharge of stored work.
04Who it is for, and what it competes with
The intended customer is the warfighter - specifically the small unit or individual operator who needs eyes over the next ridge without announcing their presence. Today that operator often reaches for a quadcopter, which works right up until the enemy hears it. Ornadyne is aiming to hand that same operator something they can carry, launch, and trust to draw no attention.
The competition falls into two camps. On one side are the conventional multirotor and fixed-wing reconnaissance drones that dominate the field now - cheaper and more mature, but loud and easy to spot. On the other side are the flapping-wing research programs in Europe and China that hold the current technical lead. Ornadyne frames its work partly as closing that gap, restoring a US position in a category the country arguably invented and then let lapse after the Nano Hummingbird.
05The business, plainly stated
Ornadyne sells defense hardware, and it is early. There is no published price list and no announced contract. What there is: a flying prototype, a stated goal of delivering production systems to military operators within roughly six to twelve months, and an open request for demo partners who will put the O1 in real conditions and report back. The near-term currency is feedback, not revenue.
That ordering - product before pipeline - is a deliberate bet. Defense procurement usually rewards the opposite: win the contract, then build to spec. Ornadyne is wagering that a working aircraft in an operator's hands generates better requirements than any document could, and that in a field moving this fast, the team that iterates against real users wins the design.
It also keeps the company honest about what a warfighter will actually carry. A recon tool that lives in a backpack has to answer unglamorous questions - how fast can you launch it, how it holds up in wind, how quickly a tired operator can trust what the camera sends back. Those are not questions you can reason your way through from a lab bench in Los Angeles. They are answered in the field, by the people the O1 is meant to serve, which is precisely why Ornadyne wants them in the loop this early.
Propellers are loud. They don't blend in; they're visually obvious.- Ornadyne, launch note
There is risk in all of it. Endurance claims have to survive contact with weather and payload. A crow that flies wrong is more conspicuous than an honest quadcopter. And selling into defense is a long road even with a great demo. But the shape of the opportunity is clear enough that YC backed it and a flying prototype exists, which is more than most ideas at this stage can say.
For now, Ornadyne is a small team in Los Angeles trying to make something disappear into a flock. If they are right, the measure of success will be strange and quiet: a drone that does its most important work in the moments when nobody looks twice.