Wing Commander Paul Farnes was among the 3,000 airmen who defended the skies above southern England for three-and-a-half months in 1940.
There are now just three surviving members of 'The Few' - the pilots who defended the country in the Battle of Britain during World War Two.
People up and down the country have been paying homage to the RAF fighter pilots who repelled Hitler's Luftwaffe in 1940
Westminster Police confirmed on Twitter the bridge had been temporarily closed off while the authorities inspected the device
Many Twitter users have heralded the role played by Polish airmen and suggested we should remember this before criticising their migration to the UK