Electric Seaglider Prototype Undergoes On-Water Testing

REGENT has commenced sea trials for its full-scale Viceroy seaglider prototype, completing initial on-water tests to validate the vessel’s design and performance under real-world conditions By William Mackenzie / 10 Mar 2025
Full-Scale Electric Seaglider Prototype Completes Crewed Sea Trials
Follow AAMi

REGENT Craft has revealed its full-scale crewed seaglider prototype and completed the first on-water tests, showcasing the successful technical validation of the novel maritime vessel with humans on board. 

The 12-passenger, all-electric Viceroy seaglider prototype measures 55ft long with a 65ft wingspan. The high-speed vessel operates exclusively over water in three modes — floating on the hull, foiling above the waves on hydrofoils, and flying in ground effect within one wingspan of the surface of the water.

In maritime tradition, REGENT christened the vessel, named “Paladin”, before lowering her into Narragansett Bay, Rhode Island. Officially commencing sea trials, REGENT test captains completed the first in a series of on-water tests that will culminate in the first human seaglider flight mid-year. 

Sea trials follow months of rigorous sub-system testing of the critical onboard systems, including motors, batteries, electronics, mechanical systems, and vehicle control software.

REGENT seagliders are designed to enhance coastal transportation efficiency, offering a low-cost and convenient solution for passenger travel, cargo transport, and emergency response. 

The company successfully flew its quarter-scale seaglider prototype in 2022, validating its innovative technological approach to redefining wing-in-ground craft (WIGs), vessels that operate in ground effect low over the surface of the water.

Mike Klinker, Co-founder and CTO of REGENT, commented, “Stepping off the dock and onto the Viceroy seaglider prototype for the first time was surreal. I felt honored to be in the cockpit as she left the dock for the first time and started sea trials. This was the first voyage of a vessel that is destined to transform mobility — the era of seagliders has begun.”

Billy Thalheimer, REGENT Co-founder and CEO, added, “Sea trials are just the beginning. This is the first step toward delivering Viceroy seagliders around the world and fulfilling our global order book. It’s a true testament to the dedication of our world-class team and partners across the globe that we’ve accomplished this historic milestone in just four years since our founding. Today, we’re one step closer to meeting what we have now validated as massive global market demand for seagliders.”

Posted by William Mackenzie Will is a Content Specialist at Advanced Air Mobility International. He joined in 2024 with a background in professional copywriting, and writes on developments in electric aircraft, zero-emission flight systems, and next-generation air transport. His coverage highlights the technologies, regulations, and industry shifts driving the evolution of sustainable and autonomous aviation. Connect

Latest Articles

Vertical Completes Third Full-Scale Prototype & Doubles Test Capacity

The final prototype aircraft will transition to piloted flight testing in early 2026 to accelerate the path toward commercialization

Dec 24, 2025
Joby Aviation & Metropolis Technologies Partner to Build 25 U.S. Vertiport Sites

New collaboration leverages AI-driven parking infrastructure and aviation logistics to integrate electric air taxis into existing urban transportation hubs

Dec 23, 2025
Archer to Establish UK Engineering Hub & Appoint Veteran Aerospace Leader

The expansion into South West England marks a strategic move to develop dual-use eVTOL technology for the British Army and defense sectors

Dec 22, 2025
Advanced Air Mobility Milestones in 2025

Advanced Air Mobility International looks back at the industry's most significant milestones in 2025, highlighting flying motorcycles, investments, and infrastructure developments

Dec 19, 2025
First Successful Flight Completed for Generation 6 Autonomous eVTOL

Wisk Aero completes the first flight of its Generation 6 autonomous eVTOL aircraft, validating core flight systems and advancing FAA type certification efforts for future passenger operations in the United States

Dec 18, 2025
Archer Secures Master Lease at Hawthorne Airport as Part of LA Air Taxi Strategy

Archer Aviation's strategic acquisition of airfield positions company for upcoming Los Angeles (LA) network launch and 2028 Olympic Games operations

Dec 17, 2025