T2x
Icon/Charter Member
I don't want to throw a wet blanket over anything in this thread....and I find it fascinating.....
But......
100 mph in the early to mid 70's in an Offshore boat of that size would have been about 20 mph over the real speeds of the time. I think if you check the prop pitches, RPM's and gear ratios you might find that they won't add up to 100 mph... You will also find that the x dimensions were considerably lower than today's, resulting in a lot more drag.
To my knowledge no boats saw 100 mph at Lake X until 1980 or so...and they were cats. I know that Steve Stepp managed to get a small 32' Velocity vee over 100 at about the same time but that was a one shot deal, with almost empty tanks, and a light weight set up.
In 1981, my 94 mph Sport Class Shadow Cat could out run any open class vee bottom with plenty to spare...in calm water. (We held our own in the rough as well, but that's not my point)
If Brownie, Bobby Saccenti, Richie Powers, et al have opposing points of view I will, obviously, listen with respect to their counterpoint, but barring that, I think that 100 mph in a monohull in that era is a bit of a stretch.
T2x
But......
100 mph in the early to mid 70's in an Offshore boat of that size would have been about 20 mph over the real speeds of the time. I think if you check the prop pitches, RPM's and gear ratios you might find that they won't add up to 100 mph... You will also find that the x dimensions were considerably lower than today's, resulting in a lot more drag.
To my knowledge no boats saw 100 mph at Lake X until 1980 or so...and they were cats. I know that Steve Stepp managed to get a small 32' Velocity vee over 100 at about the same time but that was a one shot deal, with almost empty tanks, and a light weight set up.
In 1981, my 94 mph Sport Class Shadow Cat could out run any open class vee bottom with plenty to spare...in calm water. (We held our own in the rough as well, but that's not my point)
If Brownie, Bobby Saccenti, Richie Powers, et al have opposing points of view I will, obviously, listen with respect to their counterpoint, but barring that, I think that 100 mph in a monohull in that era is a bit of a stretch.
T2x