Lieutenant-Commander Jeremy John Donnell Knapp, a distinguished naval aviator recognized for his courage in critical rescue missions, has died at the age of 88. Over his career in the Royal Navy, Knapp was twice formally commended for acts of bravery that underscored his skill and dedication.

Born on August 4, 1937, in Oxshott, Surrey, Knapp developed an early fascination with the sea following a post-war voyage with his father, a naval captain. He attended St Piran’s preparatory school and Blundell’s School before gaining entry to the Royal Naval College, Dartmouth, in 1956. His naval career began aboard minesweepers and frigates stationed in Malta, Singapore, and the Persian Gulf, before he transitioned to aviation in 1961, training initially on the Chipmunk aircraft and later specializing in helicopters.

Knapp’s most notable act occurred on November 27, 1964, during the Borneo Confrontation, while serving as a lieutenant with 845 Naval Air Squadron. He volunteered for a night mission that was usually restricted to daylight hours, tasked with transporting a critically ill topographer approximately 150 miles from the settlement of Nanga Gaat in Sarawak to Sibu. Facing severe monsoon conditions, Knapp flew nearly blind at an altitude as low as 100 feet, navigating by using the reflection of his aircraft’s landing light on a dark river beneath. For this mission, he was awarded the Queen’s Commendation for Brave Conduct.

Earlier in his career, as a naval cadet, Knapp earned the Royal Humane Society Silver Medal for rescuing a crew member who had fallen overboard in Plymouth Sound during a gale. Throughout his service, he also demonstrated exceptional airmanship in other challenging situations. Notably, he managed a safe emergency landing of a Wessex helicopter in Borneo after engine failure, creating a makeshift platform under the wheels, an incident that received a commander-in-chief’s commendation. Additionally, in 1966, as flight commander aboard the frigate HMS Juno, he successfully recovered a Wasp helicopter that had lost height immediately after launch.

Promoted to lieutenant-commander, Knapp held senior pilot and command roles within several Naval Air Squadrons during the 1970s, including 229, 845, 846, and 848 Squadrons. He concluded his naval career in 1977 after logging nearly 3,000 flying hours across 14 aircraft types.

Following his retirement from military service, Knapp settled in Aberdeenshire, working with Shell and restoring a property while enjoying outdoor pursuits. Later years saw him residing in Gloucestershire and Clare, Suffolk. Despite facing serious health challenges, he remained an avid traveler, visiting 12 countries.

Knapp married Caroline Thompson of the Foreign Office in 1968, and they had two children. She survives him, alongside their family.