It's quiet, dark and cool. There's the sinister mechanical hiss of fuel rushing through pipes, then random percussive ignition and the flames pop to life. The light attracts and the warmth feels good on your face.
Jack Schroll's "El Diablo" is powered by this 1960's French fighter-jet engine. All sorts of chemicals and metals are introduced into the after-burners for great effects. Don't get too close—it's quite hot