Nice little video on the effects of a 747's jet blast: http://www.wimp.com/crosswinds/
I was flying the mighty Twin Otter out of McCarren in Las Vegas one day. I was just rotating on 19L when the JAL 747-400 on the taxiway next to me decided it was time to do a 180 and go back to the gate. The MFer must have gone to full power on his left engines to help the turn because next thing I knew, I was over 19R and still going sideways. Not fun. Tower was going hysterical and I came back around to have the aircraft checked out for damage and to have the seats cleaned. When I was taxing back in, Ground was really apologetic for having the 747 spin in place from a stop instead of continuing down the taxiway and using a turn off. My plane didn't lose any metal but it had some new ripples in the fuselage skin and one VHF antenna was being held on by its wires. The seat cushion gave me a sore ass for about a week too. Those 747 engines are powerful.
I was flying the mighty Twin Otter out of McCarren in Las Vegas one day. I was just rotating on 19L when the JAL 747-400 on the taxiway next to me decided it was time to do a 180 and go back to the gate. The MFer must have gone to full power on his left engines to help the turn because next thing I knew, I was over 19R and still going sideways. Not fun. Tower was going hysterical and I came back around to have the aircraft checked out for damage and to have the seats cleaned. When I was taxing back in, Ground was really apologetic for having the 747 spin in place from a stop instead of continuing down the taxiway and using a turn off. My plane didn't lose any metal but it had some new ripples in the fuselage skin and one VHF antenna was being held on by its wires. The seat cushion gave me a sore ass for about a week too. Those 747 engines are powerful.