Vertical Begins Testing New eVTOL Prototype

Testing for the new, more advanced Vertical VX4 prototype has begun with initial powered ground tests complete at the company's flight test centre By Joe Macey / 24 Jul 2024
Vertical Begins Testing New eVTOL Prototype
Follow AAMi

Testing on Vertical Aerospace’s most advanced eVTOL aircraft has started with initial powered ground tests, including propeller balancing, successfully complete.

Propeller balancing and spinning tests measure weight distribution of each propeller blade to ensure vibrations are minimized for smooth, stable flying.

Over the coming days, the company will conduct powered, propulsion system testing of its most advanced powertrain, which includes proprietary battery packs capable of producing 1.4 MW of peak power and has been designed and built to certification safety standards at its multi-million-pound Vertical Energy Centre.

These next tests involve securely anchoring the aircraft to prevent lift-off and running the engines at various power levels to measure thrust output, system integration, and structural integrity. Together, these tests will ensure the VX4 meets the highest standards of operational safety which are needed for piloted flights.

The company will then move onto its “wheels up” phase with tethered flight tests before progressing to low-speed untethered flights, once it has been issued its Permit to Fly from the UK Civil Aviation Authority (CAA).

David King, Chief Engineer, Vertical, said; “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. Every day we are seeing amazing progress from the team at our Flight Test Centre, each test providing valuable insights to help shape the next. We continue to work alongside our regulator to develop the safest and most advanced eVTOL aircraft in the world.

“As the aerospace world meets in Farnborough this week, we could not be prouder of the team and look forward to sharing more on our progress towards piloted flights.”

This next-generation VX4 is more powerful than the previous full-scale prototype, with an impressive 20% increase in the power to weight ratio, enabling the aircraft to reach speeds of up to 150mph – the certification aircraft’s intended cruise speed.

The aircraft has been designed and built alongside global aerospace partners, including GKN Aerospace, Honeywell, Hanwha, Molicel, Leonardo and Syensqo. It features Vertical’s next generation propellers and new proprietary battery technology, designed and manufactured at its multi-million pound state-of-the-art Vertical Energy Centre near Bristol, the UK’s most advanced aerospace battery facility.

Posted by Joe Macey Joseph Macey is a Content Specialist at Advanced Air Mobility International, focusing on emerging aviation technologies since joining in 2022. He has particular expertise in eVTOLs, vertiports, and propulsion systems. A graduate of Falmouth University in Journalism, Joseph began his career in 2019 as a local reporter. His journalism experience sharpens both his reporting and interview skills, enabling him to deliver well-informed, authoritative insights on the latest trends in the aviation sector. Connect

Latest Articles

Archer Completes In-Country Flight Tests in UAE for Midnight eVTOL Aircraft

In-country flight campaign in the UAE showcases the Archer aircraft’s full flight envelope over desert areas, supporting the goal of making Abu Dhabi the first region for commercial operations

Nov 14, 2025
Tokyo Selects Consortium for eVTOL Implementation Project

The multi-company effort, which includes Nomura Real Estate, ANA Holdings, and utilizes aircraft from both SkyDrive & Joby Aviation, aims to strengthen urban functions with next-generation air mobility by 2030

Nov 13, 2025
Eve UATM Software Deployed at São Paulo Grand Prix

New Urban Air Traffic Management (UATM) solution from Eve Air Mobility receives its first real-world deployment to handle helicopter operations for a high-profile sporting event

Nov 12, 2025
Tokyo Selects Consortium Featuring Midnight Aircraft for eVTOL Implementation Program

Archer Aviation’s Midnight aircraft will feature in a Japan Airlines-led consortium selected for Tokyo’s eVTOL project, advancing urban air mobility through planned demonstration flights and ecosystem development

Nov 11, 2025
Skyportz Aeroberm™ Prototype Addresses Downwash & Fire Risk for Scalable eVTOL Vertiports

Elevated modular vertipad promises to significantly reduce the infrastructure footprint required for safe eVTOL operations by mitigating noise and aerodynamic forces

Nov 10, 2025
UrbanLink & Signature Aviation Partner for Electric Air Mobility in Florida

UrbanLink and Signature sign an LOI to explore infrastructure and establish operations for all-electric aircraft at private terminals

Nov 07, 2025