Done some checking it looks like this is going to end up as a range cite with a note at the end because different sources are claiming different speeds The official total seems to vary between 32 and 33 knots the mathematical formula gives the speed at 34 9 knots and the user requesting the cite has information stating 31 knots I m heading for the library tomorrow in hopes of finding some kind of info on what the USN considered the official speed to be but if I fail I think that the section will need a reword to account for this discrepancy Talk