Supersonic jet with a speed of 6,174 km/h

AmericaThe Hermeus company is developing a Mach 5 supersonic aircraft that can fly across the Atlantic Ocean in 1.5 hours.

The Halcyon passenger jet can fly at a speed of Mach 5 (6,174 km/h), traveling between London, England and New York, USA, in just 90 minutes. Compared to it, the maximum speed of Concorde, one of two supersonic aircraft that has carried passengers in history, is only Mach 2.04 (2,173 km/h). Test flights and passenger operations of Halcyon will begin later this decade, according to Sun.

With more than 125 routes in the plan, the supersonic aircraft model has a range of 6,437 km, enough to complete a non-stop transatlantic flight such as from New York to Paris. However, a trans-Pacific route like from Los Angeles to Tokyo would require a small transit point. However, the jet cannot be used for intercontinental and domestic flights on land because traveling at five times the speed of sound will create a loud sonic boom.

Halcyon is being developed by Hermeus, an Atlanta-based aerospace technology startup that aims to revolutionize transportation with supersonic aircraft. The company is mainly focused on developing a unique jet engine that helps their planes take off. In 2020, Hermeus tested a new engine design that combined technology used in aviation and defense.

This engine design is a hybrid between the turbojet engine that most passenger aircraft use and the jet engine, which only operates at supersonic speeds or higher. When flying at speeds below Mach 3 (3,700 km/h), the air is compressed and mixed with fuel before being activated inside the jet turbine engine. Hot air then sprays strongly from the back of the engine, pushing the plane forward. However, to reach speeds above Mach 5 (6,174 km/h), the plane needs to use a jet engine.

Hermeus plans to use turbojet mode when the aircraft is at subsonic speeds, especially during takeoff and landing. The engine will automatically switch to jet mode when the aircraft reaches supersonic speed during acceleration and cruise.

The new engine will be used for the first time on the Quarterhorse, the company’s second aircraft prototype scheduled to fly near the end of 2024. The vehicle was co-developed by Hermeus and the US Air Force in a $60 million cooperation project. The main goal of the prototype is to demonstrate the ability to take off and land at high speeds. The company will then build the Darkhorse, an upgraded version of the Quaterhouse that can carry cargo. The prototypes will pave the way for the company’s 20-seat Halcyon supersonic aircraft.

By Editor

Leave a Reply