Not reverse thrust. It's forward thrust and they have probably floored it from a standstill. You get a small tornado set up in front of the engine and it sucks up gravel or anything else off the runway.
It can even happen with a propellor.
Very destructive.
And expensive.
You need to get the thing moving a bit before throttling up fully.
But it does look neat.
{edit} Hmm, on more inspection, it could be reverse thrust which they have held on until standstill. It's the same result because the engine is still sucking in a truckload of air from a standstill.
It doesn't matter reverse or foreward thrust.
the air still enters the same place and the engine operates the same either way.
Reverse thrust usually comes from deflector plates.
I went to an airshow and the WWII Warbirds, a P52, a Hurricane and an old Mig stole the show. Left the jets for dead. The sound these things make is just unbelievable. Something like 16 cylinders and 15 litres of supercharged glory (or something like that). The ground shook.
The jets were surprisingly tame in comparison. That said nothing like being woken up at the indy by an F/A-18 buzzing your apartment.
Your 100% correct, there is something about the roar of a Rolls Royce Merlin ask this bloke what he reckons.
Salatiela
While a lot of these things are 'instruments of death' you can't deny the engineering milestones that have been passed in the development of all of these aircraft, simply stunning.
And yeah I echo the sentiments that a RR Merlin at full noise is beautiful to behold....however when I was in Maui recently three F22 Raptors took off from the airport and I defy anyone to say that a Spitty or Mustang is more spectacular than that, the noise is incredible. Very few things I reckon can match the noise and intimidation factor of an air superiority fighter, low and at full noise.
A pretty famous B17 photo from the war, spreading the chemtrails over the axis of evil ^_^
CJW I will noy defy you and make any such statement. I was born and grew up on a Royal Air Force Base that was home to three Sqadrons of Vulcans and I can still hear and feel the noise of them taking off at full power as they used to during the "Cold War". The Vulcan has been described as the loudest aircraft ever? 4 x RR Olympus; Turn your volume up
Sweet vids Rupert.
Speaking of WW2 fighters, worked and at full noise, this place is on my bucket list.