Thanks for the comments Charles. That does make sense. 500lb of golf car batteries won't help either. Perhaps some underbody tweaks would be in order to make her more slippery at displacement speeds. 8MPH for a couple hours might be more realistic than the hoped-for 12. With a few $K worth of lightweight Lithium batteries she'd be a whole other animal though.
--- In electricboats@yahoogroups.com, "Charles" <charlie@...> wrote:
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> Please don't be too disappointed if you don't get quite the speed you're looking for. Sneakeasy is pretty narrow, but a little sticky because of the flat bottom. Hull speed is probably in the 7K range, so pushing it faster will take considerable power until you get it up on a plane. My recollection is that Jim Rudholm didn't get much over 10 mph with pretty high current. It is unfortunate that his site isn't up. He did a lot of testing and posted the results - and his boat was a jewel. I sent an e-mail to the last address I had for him (5 years ago) and it was returned undeliverable.
> I have a set of Sneakeasy plans and had intended to build one for the Wye Island Marathon. I ended up doing it with a heavyweight eight oar shell. It's 58' long. So far with an electric outboard, I got 10 mph. With an Etek on a Yamato lower unit I've seen 14 knots, but haven't yet done the distance at that pace. The shell is pretty slippery compared to the Sneakeasy, but the Sneakeasy is a great looking boat.
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