Hey Megan,
As I understand it the B747 canoe fairings were simply sized to cover the very complex mechanism for the flaps. They cost a lot in skin friction drag as I am reliably informed. TDRacer likely knows. There was a lot of stuff crammed into those fairings. The SP did not have nor need canoe fairings. The flaps were extremely simple to reduce weight and drag. The concept was that if a full sized B747 could operate out of a field an SP could too with simple flaps coz it was so much lighter and over thrusted.
The SP flaps were really easy to cock up when setting the T/O flaps. Unfortunately the F20, usual T/O setting, on the SP, was not in the same position on the flap gauge for the other B747s. In fact F10 on the SP was about the same position on the dial for F20 on the others. HF anyone?? Yes, many crews owned up to departing with F10 on the SP.