" Or, for the exterior, a length of 4 x 2."
And a sledgehammer....for the T/R's when they became, ahem, "stuck".
For the OP, all I would suggest is that a Boeing is a Boeing is a Boeing, and thus if you can get hold of any of the 727 / 737 notes, you should be able to get a good idea as to the 707 quandrant.