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Bill,<br><br>For the most part, I enjoyed your sermon on the mount(motor mount that is). However, I'm a UU and UU's will always debate a sermon, no matter how good.<br>Your final remarks about motor

Ah, I don't know how to put this politely, but there's been lotsa discussion about hull speed and horsepower calculations, and while none of it has been outright wrong (except for that one website

You don't necessarily have to get power run to your dock, if you're willing to buy a small portable electric generator, cost you about $500 or so, and recharge your batteries from that. (Of course,

Depending on how often you use the boat, solar panels might keep it pretty well charged up. <br><br>Just a thought and I'm sure others here could help with the calculation to see if

" It's just a real bummer that the boat can't keep itself charged like a car."<br>Just think of the batteries as your gas tank and your battery charger as the gas pump. keep track of how many hours

Eric, If you want to view the calculation do the following.<br>with your mouse pointer on the page right click your mouse.<br>A drop down box will open.<br>select View Source from the box and wndows

Thank you so much for the reply!! I will look into the route you talked about. It's just a real bummer that the boat can't keep itself charged like a car. Now I have to get power run to

Here's another calculator from the discussion over at rec.boats.building. It makes a simple hull drawing you can view by moving your mouse. <a href=http://www.webstrand.org/yachts/spreads/fred.shtml

Dan,<br><br>I just tried that site. IMHO it's not worth a darn. One can get great changes in "hull speed" just by altering the displacement. It just don't work that way. <br>Hull speed for a given LWL

Shunt wound motors offer advantageous low speed performance over series wound, and to some extent even over permanent magnet motors, according to three motor experts that I have contacted that design

Bill -<br>You recently wrote:<br><br>snip<br><br>>5-tone ooogah horn, etc. I just bought one yesterday, am installing it tomorrow, so don't >have personal experience with it yet<br><br>Wow, I've

You really did misunderstand the part about recharging--there's no way the boat could charge herself while underway, and therefore not need charging. Not only ain't no such animal, it violates the

I agree--that website's formula is really wacky. I just asked it for the hull speed of the Elco 30, which I designed for Elco in 1987--a classic fantail launch and as you guys said, about as slippery

Marvin, remember that as the screw on the boats turns faster the torque required goes up with it. Also as the hull move through the water the faster the torque reruired goes up propertional with

Wilde Evolutions sells the Lynch motor for $1145.00. <a href=http://www.evparts.com/Lemco.htm target=new>http://www.evparts.com/Lemco.htm</a><br>4QD sells regenerative 300amp controllers for $450.00

As I said, I dont vouch for the accuracy of what I found out. I do note however, that one advantage of the shunt wound is that you can control the shunt instead of the armature and thereby use a ca 10

Marvin, It would almost apear that this is to good of a deal to pass up. The problem is that most of the less expensive speed controls use resistors in series with the motor to drop the voltage. While

Marvin--Exactly the kind of information we all profit from. Thanks!<br><br>Larry

Larry: A 4 hp (peak about 11-12 hp) shunt wound replacement motor with 400 amp oversize controller (36-48 volt) for the yamaha golf cart can be obtained for a total (motor plus controller) of $580

I got a questionable result for my 34' Columbia sailboat.... 8 kts and 34.6 hp. Both seem high to me, the Palmer M60 gas engine (now defunct) pushed the boat to 5.5 kts, and was rated at 22 hp (max)