The Bob Martin Family

[carl sladek]

Have the dimensions changed from way back when, the required dimensions of the runabouts, length of the hydros, and the weights.

I know that the pre-1960 the runabouts had to have a passenger's seat.

[Mark75H]

Yes, dimensions and weights have changed radically. The size changes and corresponding shape changes are the major reason speeds have increased so much. These changes have also made the boats "smooth water" boats. Many races are canceled due to rough water that would have been fine in 1960.

The next factor in speed increase has been propeller technology.