Category Archives: Aircraft Propulsion & Energy

Noise, Vibration Considerations in eVTOL Aircraft

Dr Arunkumar M Sampath, a Principal Consultant in Tata Consultancy Services (TCS) in Chennai, recently published a study into the implications of the increase in the production and operation of eVTOL aircraft and UAVs within populated civilian areas at relatively low altitudes which creates noise annoyance issues that impact human health and well-being. Continue reading

Raytheon Gets 81M DARPA Hypersonic Air-Breathing Weapons Concept Contract

Raytheon in partnership with Northrop Grumman Corporation was awarded a follow-on contract from the Defense Advanced Research Projects Agency (DARPA) to reduce risk for future air breathing hypersonic systems. Under the agreement, the Raytheon-led team will build and fly additional Hypersonic Air-breathing Weapon Concept (HAWC) flight vehicles. Continue reading

Airbus-Safran Venture Demonstrates Proof-of-Concept for Hydrogen Aircraft Fuel System

Airbus-Safran space launch venture ArianeGroup has conducted a proof-of-concept test of hydrogen conditioning which would be suitable for feeding an aircraft engine. The test, carried out on 12 May at the Vernon facility northwest of Paris, marks the conclusion to a project named Hyperion which looked at hydrogen propulsion options for commercial aviation. Continue reading

Whisper Aero Unveils ‘Whisper Jet’ to Showcase Ultra-Quiet Ducted Fan Technology

Technology company Whisper Aero has unveiled its Whisper Jet concept as part of a larger reveal of the applications of their ultra-quiet ducted fan technology that is currently under development. Whisper Aero’s tech employs a ducted fan with a large number of propellers turning at much slower speeds than conventional designs to achieve its claimed industry-leading quiet noise footprint. Continue reading