Spitfires Mark 75 Years Since Battle of Britain's Hardest Day: Photos

Spitfire and Hurricane planes take part in a Battle of Britain flypast Tuesday, in Biggin Hill, England. A total of 18 Spitfires and six Hurricanes flew over South East England to mark 75 years since the Battle of Britain's "Hardest Day". On 18 August 1940, both sides, RAF and German Air Force, suffered their greatest losses during the entire battle. Mark Cuthbert/UK Press/Getty Images
Spitfire and Hurricane planes take part in a Battle of Britain flypast Tuesday, in Biggin Hill, England. A total of 18 Spitfires and six Hurricanes flew over South East England to mark 75 years since the Battle of Britain's "Hardest Day". On 18 August 1940, both sides, RAF and German Air Force, suffered their greatest losses during the entire battle. Mark Cuthbert/UK Press/Getty Images
Visitors view a Mustang fighter jet, Tuesday, in Biggin Hill, England. Aircraft including 18 Spitfires and six Hurricanes flew over southern England to mark 75 years since the Battle of Britain's "Hardest Day" when Biggin Hill and other South East military bases came under attack from the German Luftwaffe. Carl Court/Getty Images
Visitors view a Mustang fighter jet, Tuesday, in Biggin Hill, England. Aircraft including 18 Spitfires and six Hurricanes flew over southern England to mark 75 years since the Battle of Britain's "Hardest Day" when Biggin Hill and other South East military bases came under attack from the German Luftwaffe. Carl Court/Getty Images
Flames roar from the exhaust of a Spitfire as it's engine is started, Tuesday, in Biggin Hill, England. Carl Court/Getty Images
Flames roar from the exhaust of a Spitfire as it's engine is started, Tuesday, in Biggin Hill, England. Carl Court/Getty Images
A historical reenactor watches a fly past, Tuesday, in Biggin Hill, England. Carl Court/Getty Images
A historical reenactor watches a fly past, Tuesday, in Biggin Hill, England. Carl Court/Getty Images
Historical reenactors take part in a 'scramble' as they rush to their aircraft in the event of an attack, Tuesday, in Biggin Hill, England. Carl Court/Getty Images
Historical reenactors take part in a 'scramble' as they rush to their aircraft in the event of an attack, Tuesday, in Biggin Hill, England. Carl Court/Getty Images
Spitfire and Hurricane planes take part in a Battle of Britain flypast, Tuesday, in Biggin Hill, England. Mark Cuthbert/UK Press/Getty Images
Spitfire and Hurricane planes take part in a Battle of Britain flypast, Tuesday, in Biggin Hill, England. Mark Cuthbert/UK Press/Getty Images
A pilot prepares to take off in a Spitfire, Tuesday, in Biggin Hill, England. Carl Court/Getty Images
A pilot prepares to take off in a Spitfire, Tuesday, in Biggin Hill, England. Carl Court/Getty Images
Tony Pickering, who served as a Hurricane pilot in the World War Two, next to a Hurricane, Tuesday, in Biggin Hill, England. Carl Court/Getty Images
Tony Pickering, who served as a Hurricane pilot in the World War Two, next to a Hurricane, Tuesday, in Biggin Hill, England. Carl Court/Getty Images
A pilot climbs into a Spitfire, Tuesday, in Biggin Hill, England. Carl Court/Getty Images
A pilot climbs into a Spitfire, Tuesday, in Biggin Hill, England. Carl Court/Getty Images
Spitfire and Hurricane planes take part in a Battle of Britain flypast, Tuesday, in Biggin Hill, England. Mark Cuthbert/UK Press/Getty Images
Spitfire and Hurricane planes take part in a Battle of Britain flypast, Tuesday, in Biggin Hill, England. Mark Cuthbert/UK Press/Getty Images
Pilots walk past Hurricanes and Spitfires, Teusday, in Biggin Hill, England. Carl Court/Getty Images
Pilots walk past Hurricanes and Spitfires, Teusday, in Biggin Hill, England. Carl Court/Getty Images
Historical reenactors chat next to vintage vehicles, Tuesday, in Biggin Hill, England. Carl Court/Getty Images
Historical reenactors chat next to vintage vehicles, Tuesday, in Biggin Hill, England. Carl Court/Getty Images