To make it fly, we have to build something robotics still does not have: lightweight, distributed, fault-tolerant muscle.
Quetzalcoatlus was not just the largest flying animal that ever lived. It solved one of engineering's hardest problems: getting a body the size of a small aircraft off the ground under its own power, with no runway, no engine, and no rare-earth magnet anywhere in it.
Then it was interrupted. An asteroid ended the experiment 66 million years ago, mid-run. Nothing since, no animal, no aircraft, no robot, has replicated muscle-powered flight at that scale.
Reproduce the system that made this possible and you have solved a problem much larger than flight.
We can build the skeleton.
We can build the computers.
We can build the batteries.
Every robot on Earth still concentrates force, mass, and failure into a handful of motorized or hydraulic joints. 66M builds the alternative: force generated by thousands of contractile fibers, aggregated through a shared tendon, with a control system that detects a failed fiber and redistributes its load across the rest.
The muscle a pterosaur needs is the same muscle robotics needs today, and the magnets it replaces are running into a wall.
Global rare-earth magnet demand by 2030, rising to 175k tonnes by 2050.
Share of sintered NdFeB production concentrated in a single foreign supply chain, up from roughly 50% two decades ago.
FY2021 NDAA prohibition on foreign-import magnets in US defense systems takes effect.
Two flight programs sit on the same platform: an uncrewed Pteranodon-class demonstrator in the nearer term, and a full-scale Quetzalcoatlus as the long-term proof. We aren't selling seats or preorders yet, that comes after each demonstrator flies. Join the flight list to follow both programs.