Battle of Britain Memorial Flight Aircraft Emerge from Winter Maintenance

As the Battle of Britain Memorial Flight (BBMF) emerges from its winter maintenance period, its iconic aircraft are steadily preparing for the 2025 airshow season. Spitfires, Hurricanes, the Lancaster, and the Dakota have all undergone extensive servicing, with some already airworthy and others nearing completion.

Moreno Aguiari
Moreno Aguiari
A BBMF Spitfire cockpit is waiting for the lucky winner of the RAF Memorial Flight Official Club ballot prize for March. (Photo: Lisa Harding)
Alan Armstrong 729

As reported in the latest Royal Air Force Memorial Club bulletin, the Battle of Britain Memorial Flight (BBMF) is steadily emerging from its winter maintenance period, preparing for the upcoming airshow and display season. Thanks to the dedicated efforts of BBMF engineers, the fighter aircraft are beginning to roll out of the hangar, edging closer to their return to the skies.

Battle of Britain Memorial Flight BBMF
The Battle of Britain Memorial Flight Formation. Photo via Battle of Britain Memorial Flight/RAF

Spitfires Mk XVI TE311 and Mk IIa P7350 have both undergone successful ground runs and are now virtually ready to fly. Hurricane LF363 has also completed ground runs and is now fully reassembled, with only an air test remaining before it is cleared for flight. Meanwhile, Hurricane PZ865 has undergone a ‘Minor Star’ maintenance program over the winter and is awaiting the return of its ‘Reserve’ fuel tank, which has been sent out for scheduled servicing.

BBMF Spitfires Mk XVI TE311 and IIa P7350 outside the hangar in the sunshine for engine ground runs on 26th February. Photo Clive Rowley
BBMF Spitfires Mk XVI TE311 and IIa P7350 outside the hangar in the sunshine for engine ground runs on 26th February. (Photo: Clive Rowley via Battle of Britain Memorial Flight Club)
BBMF Spitfire Mk XVI TE311 engine ground run. Photo Clive Rowley
BBMF Spitfire Mk XVI TE311 engine ground run. (Photo- Clive Rowley via Battle of Britain Memorial Flight Club)

Spitfire PR Mk XIX PM631, powered by a Griffon engine, has been flying intermittently since October 2024, marking its return to the air after a three-year hiatus. Currently, it is undergoing an engine change, as its previous powerplant has reached the end of its calendar life and requires an overhaul. Once the new engine is installed, PM631 will be ready to join the 2025 display season. However, the ‘Major’ maintenance being carried out on BBMF’s Spitfire Mk Vb AB910 at Biggin Hill has been delayed. It is now expected to return to Coningsby in the summer.

Spitfire PR Mk XIX PM631 minus its Griffon engine outside for a defuel. Photo Clive Rowley
Spitfire PR Mk XIX PM631 minus its Griffon engine, outside for a defuel. (Photo: Clive Rowley via Battle of Britain Memorial Flight Club)

The BBMF’s Lancaster, PA474, has been undergoing a ‘Primary Star’ maintenance program, a scheduled servicing that is less extensive than a full ‘Minor’ maintenance. Additionally, its No. 1 engine has been replaced after reaching the end of its service life and is now awaiting overhaul. There is still considerable work ahead before the ‘Lanc’ is ready to participate in the 2025 season.

As this photo taken on 26th February shows there is still a considerable amount of work to complete on BBMF Lancaster PA474. Photo Clive Rowley
As this photo taken on 26th February shows, there is still a considerable amount of work to complete on BBMF Lancaster PA474. (Photo: Clive Rowley via Battle of Britain Memorial Flight Club)

Meanwhile, the extended ‘Major’ maintenance program on the BBMF’s C-47 Dakota ZA947 is nearly complete. However, the extensive paperwork required for such a significant overhaul has delayed its return to flight. The Dakota is now expected to be back at Coningsby in April.

BBMFs Dakota ZA947 Tad Diel
Photo by Tad Diel

The BBMF’s DH Chipmunk T.10 is currently at Duxford for a scheduled ‘Minor Star’ maintenance under contract. Once completed, Chipmunk WG486 will undergo the same level of maintenance. As the team works tirelessly to finalize these maintenance programs, BBMF aircraft are steadily preparing to take to the skies once again, ensuring their continued role in commemorating Britain’s aviation heritage. The Battle of Britain Memorial Flight serves as a living tribute to the aircrews of World War II, delivering inspiring air displays at events across the UK. By joining the RAF Memorial Flight Club, you help support the vital work that keeps these historic aircraft flying. The RAF Memorial Flight Club is the official club of the BBMF. For more information, click HERE.

RAF Memorial Flight Club

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Born in Milan, Italy, Moreno moved to the U.S. in 1999 to pursue a career as a commercial pilot. His aviation passion began early, inspired by his uncle, an F-104 Starfighter Crew Chief, and his father, a military traffic controller. Childhood adventures included camping outside military bases and watching planes at Aeroporto Linate. In 1999, he relocated to Atlanta, Georgia, to obtain his commercial pilot license, a move that became permanent. With 24 years in the U.S., he now flies full-time for a Part 91 business aviation company in Atlanta. He is actively involved with the Commemorative Air Force, the D-Day Squadron, and other aviation organizations. He enjoys life with his supportive wife and three wonderful children.
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