Hundreds of people gathered for the RAF Wickenby Memorial Service on Sunday afternoon and a historic flypast.
The Revd Ian Partridge conducted the service to remember the 1,147 men who failed to return serving with No 12 and No 626 Squadrons during the Second World War.
Veterans laid wreaths of poppies at the foot of the Memorial, which was bathed in sunshine.
Veterans came from across the country for the event, one was 90-year-old Peter Louis Potter from Colchester who had flown up to Wickenby in a light aircraft by a close friend having served with 626 Squadron during 1944.
Eyes were then turned to the sky as the Battle of Britain Lancaster and the Canadian Lancaster made a historic flypast.