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

TCab Tech & CSS Partner to Build Simulation Ecosystem for E20 eVTOL

Strategic collaboration aims to accelerate airworthiness certification and pilot training through high-fidelity simulation technology

Jan 14, 2026
Archer & NVIDIA Partner to Advance Physical AI in Aviation

A new collaboration between Archer and NVIDIA will apply the IGX Thor platform to develop physical AI systems designed to improve aviation safety, airspace integration, and future autonomous flight capabilities

Jan 13, 2026
Skyports Infrastructure & Linden Airport Services Partner to Modernize Miami’s Watson Island Heliport

A historic aviation site is set to become a primary hub for electric vertical take-off and landing aircraft in South Florida

Jan 12, 2026
Joby & CAE Deliver Advanced Flight Simulators to Prepare for Commercial Air Taxi Launch

High-fidelity training infrastructure moves toward FAA qualification as Joby scales pilot pipeline for 2026 operations

Jan 09, 2026
Skyfly & Myriad Unveil VR Motion Simulator for eVTOL Development

New mobile flight simulator from Skyfly utilizes real aircraft fly-by-wire architecture to provide high-fidelity motion cueing and virtual reality training

Jan 07, 2026
EHang Pilotless eVTOL Completes Cross-Province Flight

A successful 18-minute crossing of the Qiongzhou Strait demonstrates a 70% increase in travel efficiency compared to traditional ferry routes

Jan 07, 2026