Interesting Engineering

Airbus's A350F freighter has completed its maiden flight from Toulouse, flying for 4 hours 10 minutes and reaching 25,000 feet as it kicks off a flight-test campaign of more than nine months. The new cargo jet can lift up to 111 tonnes, and Airbus says it burns 20 percent less fuel than Boeing's 777F, with service entry planned for the second half of 2027.

Figure AI has decommissioned its F.02 humanoid fleet by training the robots to leap autonomously into molten steel at a foundry in Imatra, Finland, a send-off Arnold Schwarzenegger suggested on X. The company says it had to destroy the robots to protect its IP after foundries in the US and Mexico refused to take machines with lithium-ion batteries, and it is turning the recovered metal into commemorative artifacts.

Austin-based Skyways builds pilotless cargo aircraft that lift off on four electric rotors and cruise on a jet-fuel engine, carrying 30 pounds up to 450 miles. We break down how the hybrid system works, where it is already flying, from Navy destroyers to Baltic wind farms and Okinawa's islands, and what still holds it back.

Hydrogen is the smallest molecule in the universe — it leaks through gaps other gases can't, diffuses rapidly, and conventional laser detection doesn't work on it. Brint Tech's CEO built a sensor that can spot a leak at single parts-per-million concentrations in under a second. https://bit.ly/4d9yewC

A conventional car contains several kilometers of wiring. A Chinese automaker just cut that to under 500 meters — not by finding shorter wires, but by asking why so many of them needed to exist in the first place. https://bit.ly/4ho5kLy

The US Navy has ordered 30 medium unmanned surface vessels, 10 each from Saronic, HII and Galliano Marine Service, at an average of about 40 million dollars a hull, or roughly 1.2 billion dollars in total. All of them will be built at shipyards in south Louisiana. Saronic's design, Marauder, is a 180-foot autonomous ship that carries up to 150 tonnes and went from design to the water in under a year.

There are an estimated 1.2 million pieces of space debris larger than 1 cm in orbit right now, each capable of causing catastrophic damage. A theoretical clock measuring how long satellites would survive if collision avoidance failed currently sits at 2.2 days. And it keeps dropping. https://bit.ly/4hx6MKn

Paris-based Wandercraft has launched Eve in the US, a self-balancing personal exoskeleton the FDA cleared in August for home use by adults with spinal cord injuries at any level. Twelve motors keep the wearer upright, so they can stand, walk and use both hands without crutches or a walker, as long as a trained companion is close by.

Researchers at the University of Toronto's CLIMB Lab have built a clip-on footpad for their propeller-assisted, one-legged hopping robot. A compliant ball joint lets the sole tilt to meet the ground, while tiny steel spines add grip on loose and slippery surfaces. With it, the robot hops steadily on grass, rocky trails, sand and frozen ground, in work set to appear in Advanced Intelligent Systems.

The US tungsten problem isn't simply about finding new deposits. It's about building the entire supply chain infrastructure, processing, recycling, and traceability, that would make domestic tungsten a reliable alternative to Chinese supply. https://bit.ly/4hxYulx