Quick-acting Royal Navy officer prevents loss of £2.5m Peregrine drone

Why a RN commander received the prestigious Green Endorsement for saving the Navy's rare autonomous helicopter during its initial operational use.

Royal Navy Peregrine Rotary Wing Uncrewed Air System (RWUAS)

The Royal Navy’s Lieutenant Commander Adrian Hill has received a rare Green Endorsement in acknowledgement of his “rapid intervention prevented the loss of a Peregrine Rotary Wing Uncrewed Air System (RWUAS) during operations in the Middle East.”

Quick-acting RN commander saved Peregrine RWUAS

The incident occurred in 2025 as a Royal Navy frigate, the HMS Lancaster, sent out a routine maritime security patrol in the Gulf of Oman.

As reported by Navy Outlook, the Peregrine was operating in autonomous mode approximately 60 feet astern of the frigate. It then suffered a sudden computer fault and began an uncontrolled descent, threatening to crash into the sea.

Lt Cdr Hill then reacted instantly and took manual control of the stricken aircraft. The aircraft was only one or two feet from hitting the sea when its descent was arrested.

The Green Endorsement is the highest aviation safety commendation and is awarded by both the RAF and the Royal Navy Fleet Air Arm.

Royal Navy Peregrine Rotary Wing Uncrewed Air System
Photo: Royal Navy

At the time, the Peregrine was still in its testing phase onboard the HMS Lancaster.

Hill is a flight commander with the Royal Navy’s 700X Naval Air Squadron. The squadron is the Royal Navy’s dedicated drone unit and is based at RNAS Culdrose in Cornwall.

The Navy Outlook stated this “highlights both the risks inherent in early uncrewed aviation deployments and the growing professionalism of RN drone aircrew. ”

HSM Prince Of Wales at sea
Photo: Royal Navy

While the Peregrine was able to return home to Britain, the HMS Lancaster was not. It was decommissioned in Bahrain the crew was flown home.

The Royal Navy’s incredibly rare Peregine drone

The Peregine is exceptionally rare as the Royal Navy has purchased only two so far. They cost around £2.5 million and represent a significant part of the frigate’s embarked aviation capability.

Royal Navy Peregrine Rotary Wing UAS
Photo: Royal Navy

Peregrine is the British designation for the three-metre-long S-100 Camcopter. The S-100 Camcopter is also being tested by the British police.

It is a 200kg uncrewed helicopter developed by the Austrian company Schiebel with modifications for maritime use. The Peregine version is also fitted with additional sensors and military systems.

Camcopter S-100s have been purchased by a large number of operators, including France, Greece, the United States, the UAE, and others. The Canadian Navy is in the process of acquiring them, while the Australian Navy has already divested itself of them.

Debut of the Royal Navy Peregrine 

In February 2025, the Royal Navy reported it had used the mini-helicopter, the Peregrine, for the first time on drug-hunting operations in the Middle East.

It said the Peregrine is the first remotely-piloted helicopter operated by the Royal Navy and is able to conduct sorties for up to five hours.

The navy news release said the Peregrine had “been launched from the flight deck of frigate HMS Lancaster, which is deployed to the Middle East on a long-term maritime security mission.”

During the mission, the mini-copter looked for smugglers and drug-runners on the so-called ‘Hash Highway.’ It helped relieve pressure on the Navy’s crewed Wildcat helicopters.

The Navy is looking to unlock the potential of using the drone in conjunction with crewed aircraft.

It’s unclear what the future is for the drone type with the Royal Navy, but the Royal Navy may operate one on its River-class offshore patrol vessel sent to the Middle East.

Featured Image: Royal Navy

Sign up for our newsletter and get our latest content in your inbox.

More from