Typhoon fighter jets have arrived at RAF Northolt in West London ahead of a major military exercise to test security for the Olympic Games.
It is the first time that fighter planes have been stationed there since the Second World War.
The aircraft can travel at up to 1,370 miles per hour.
The fourth typhoon overshoots the short runway on its first attempt to land.
The Royal Navy's largest warship, HMS Ocean, sailed up the Thames today as the military stepped up security preparations for the Olympics.
The appearance of fighter jets in the skies over London will mark the start of an extraordinary Olympic test event.