Jets

Astro Mechanica is an aerospace startup developing what it calls a "turboelectric adaptive engine", efficient for both subsonic and supersonic flight ... using electric car motor technology. And the suck-squeeze-bang-blow works.

We're starting off the week with a mechanical marvel: a homemade dragster with dual Rolls-Royce jet engines that's been 17 years in the making – and could potentially hit 400 mph.

Imagine that you're injured on a remote mountain path but have managed to contact emergency rescue. The first to arrive on the scene could be a small humanoid robot wearing a jetpack if Italian research bears fruit.

After launching a modern pulsejet engine for UAVs back in March, Wave Engine Corporation announced this week that it's delivered the first units. The loud, pulse-combustion fire-breather is officially finding its way to air-bound vehicles.

Wave Engine Corp has aced a demonstration flight of a simple jet engine with no moving parts. A modern version of a pulsejet, the J-1 engine powered a UAV through take-off and several mid-air stop/starts before the aircraft nailed the landing.

Connecticut-based WaveAerospace has announced "the world's fastest multirotor UAS," a "new class of aircraft" that's effectively a quadcopter drone with a raging jet turbine in the middle, capable of insane speeds and all-weather operation.

The US Army is swapping out its Cold War fleet of prop-driven recon planes with ones based on a business jet. Under a new contract, the Army is buying a Global 6500 jet aircraft from Bombardier with options for two more for development prototypes.

Rolls-Royce has taken a major green step, announcing that not only has its giant UltraFan demo jet engine been run at full power on 100% Sustainable Aviation Fuel (SAF), but tests have proven all its current civilian engines are compatible with 100% SAF.

UK company Aeralis is going full throttle on a disruptive new modular jet concept that could handle a huge range of capabilities, from advanced jet training to long-range unmanned ISR missions, with a single fuselage and a range of swappable parts.

It goes without saying that it is very important for airliners' jet engines to be regularly inspected. Such inspections could soon be easier and more thorough than ever before, thanks to a robot that moves like an inchworm.

Bombardier says it's stepping up prototype testing on its blended-wing Ecojet project, aiming to use its lift-generating fuselage, low-drag wingspan and propulsion advances to heavily reduce fuel burn and cut emissions in half.

Reaction Engines has built a precooler for its SABRE engine that can chill a hypersonic airstream from 1,000 °C to -150 °C in 1/20th of a second. Now it's doing tests with the USAF and DoD to prove it can upgrade other existing jets to handle Mach 4.