November 2005- If you operate your aircraft into large busy airports, this comment from the tower controller has almost become a cliché. “Caution wake turbulence,” your trusty government employee will say. “You are six miles behind a heavy Boeing 777. Wind calm, cleared to land.”
If you’ve been operating at large airports long you’ve heard this warning hundreds of times and nothing has happened to you. In a few instances your airplane went through a few seconds of rough air – nothing you couldn’t handle. Following a heavy 747 in past encounters only resulted in a little mild rocking and rolling.