Cappy,

I did fly the "SP." It was bought by TWA in anticipation of flying N.Y. to Japan.

We never did fly that route and TWA sold the two we had.

It was a bit different from the -100 in that the performance was better but the main difference I remember was that the stair way to the upper deck was straight instead of the spiral. I believe TWA sold them to Iran Air and they put a special reinforced floor on the second deck to hold a large samovar.

Lou

http://www.airliners.net/photo/Iran-Air/Boeing-747SP-86/0668977/L/