Vertical Aerospace tests VX4 prototype in Phase 1 flights

Vertical Aerospace has made significant strides in its flight testing program for the VX4 prototype, completing Phase 1 in September at the Vertical Flight Test Centre. This initial phase consisted of tethered flights, ground taxi testing, and high-powered ground runs, all conducted with a pilot on board. A key aspect of the testing was simulating the failure of one Electric Propulsion Unit (EPU) to assess the aircraft's safety and response capabilities during flight conditions. Engineers collected extensive data, measuring 35,000 flight and system parameters to ensure all systems operated correctly under various conditions. The testing also included a High Voltage ripple test to analyze voltage fluctuations in the powertrain, confirming the battery's stability even at low charge levels. The successful completion of these tests demonstrates the aircraft's robustness and the effectiveness of the engineering team. As Vertical Aerospace prepares for Phase 2, which will involve piloted thrustborne flight tests, the company is working closely with the UK Civil Aviation Authority to expand its Permit to Fly. This next phase will allow the VX4 to take off and land vertically while conducting low-speed flight maneuvers. The progress made in Phase 1 is a testament to the company's commitment to safety and performance, positioning the VX4 as a leading contender in the eVTOL market. CEO Stuart Simpson emphasized the rapid advancements made in just one week, highlighting the strength of the aircraft and the collaborative efforts of their partners.