Vertical Aerospace (NYSE: EVTL), a global leader in zero-emissions aviation, has announced the start of testing on its most advanced eVTOL aircraft, the VX4. Initial powered ground tests, including propeller balancing, have been successfully completed.

In the coming days, the company will conduct propulsion system tests on its advanced powertrain, featuring proprietary battery packs capable of producing 1.4 MW of peak power, designed to meet certification safety standards.

These tests will involve anchoring the aircraft to prevent lift-off, running engines at various power levels to measure thrust, system integration, and structural integrity, ensuring the VX4 meets the highest safety standards for piloted flights.

The next phase will include tethered flight tests, followed by low-speed untethered flights, pending a Permit to Fly from the UK Civil Aviation Authority (CAA).

David King, Chief Engineer of Vertical stated: "These tests are a crucial step forward in our mission to certify the VX4 and make a cleaner, quieter, and safer way of air mobility a reality.”

Founded in 2016, Vertical has 1,500 conditional pre-orders from some of the world’s leading airlines and tourist groups including Virgin Atlantic and American Airlines.

Shares of Vertical Aerospace trade on the NYSE under the ticker symbol EVTL.