Search found 88 matches

by Lung Boy
Tue Apr 22, 2008 5:58 pm
Forum: Power Boats
Topic: plastic fuel fill
Replies: 8
Views: 1096

Here is my attempt to shed a little light on the subject. I am no expert but I have had training in how to avoid ESD. We want to avoid ESD (electrostatic discharge). ESD occurs when two conductors of different potentials come close enough to breakdown the dielectric between them and an ionized condu...
by Lung Boy
Fri Apr 11, 2008 5:36 pm
Forum: Power Boats
Topic: How to step down trolling motor speed???
Replies: 27
Views: 4212

Did someone recently change Ohms Law? Larry, I tried to once but the professor would not let me. I shall now unlease my full powers of rocket science. Ohm's Law (V=IR) does still apply. I'll try to use as little math as possible. To simplify we can assume the motor is in steady state (constant rpms...
by Lung Boy
Fri Apr 11, 2008 11:25 am
Forum: Power Boats
Topic: How to step down trolling motor speed???
Replies: 27
Views: 4212

Here is my 2 cents. The easiest way to reduce a DC motor's speed is to add resistance in series with the armature. The 5 speed control is most likely a variable resistor that does just that. You can add extra resistance will reduce the voltage across the armature. Depending on the specifications of ...
by Lung Boy
Sun Apr 06, 2008 2:13 pm
Forum: Power Boats
Topic: Skeg size for FS17 ????
Replies: 9
Views: 1471

Less drag. The closer the skeg to the transom the more turbulent the water at the prop. The difference in drag is probably small. The designer could answer that question. My guess is about 1 or 2 percent. That is just a wild guess. A planing hull with the skeg closer to the transom will probably tra...
by Lung Boy
Mon Mar 24, 2008 2:52 pm
Forum: Builder's Power Boats
Topic: Lung Boy's FS17
Replies: 125
Views: 20859

Thanks for moral support everyone. I have made my first mistake allready. I cut the stringer notches in the molds in the wrong spot. I marked the correct 12 inches from the center line, but I cut the notches to the outside of the line and not the inside. Fortunately, the molds are only temporary OSB.
by Lung Boy
Thu Mar 20, 2008 5:37 pm
Forum: Builder's Power Boats
Topic: Lung Boy's FS17
Replies: 125
Views: 20859

Lung Boy's FS17

I've finally committed to building a FS17. The plywood has arrived and the cutting has started. It is a bit unnerving cutting into such expensive wood. No photos yet. Nothing too interesting to report, but I'm sure I will need some support in the near future. So, thanks to all of the helpers ahead o...
by Lung Boy
Wed Mar 12, 2008 4:24 pm
Forum: Power Boats
Topic: fs17 gunwales
Replies: 3
Views: 849

Jacques, I noticed on a previous post (viewtopic.php?t=15701&highlight=) you mentioned you would use 1/4" for the gunwales. Is the difference due to the 8" wide specification?
by Lung Boy
Tue Feb 19, 2008 4:04 pm
Forum: Power Boats
Topic: Jacques/Joel/anybody Stiff fairing board???
Replies: 2
Views: 774

Or if you don't mind a couple of countersunk holes in your board you could screw on a piece of 2x4 between the handles to stiffen it up. Then you would have two boards in one.
by Lung Boy
Tue Feb 12, 2008 9:22 am
Forum: Questions before purchasing the plans and announcements..
Topic: boat performance in tampa bay area
Replies: 17
Views: 3105

school is almost out

School is almost out. I've read the FS17 plans, the online tutorials and numerous posts. It is time for some on the job training. But first, a few (stupid?) questions. I haven't decided on the extras yet, but if I did I might need extra plywood for the center console (2 sheets of 3/8") version of th...
by Lung Boy
Tue Jan 29, 2008 9:07 am
Forum: Questions before purchasing the plans and announcements..
Topic: boat performance in tampa bay area
Replies: 17
Views: 3105

:oops: Yes, the obvious way in this case is the best way. I was fixated on the bottom corners (the corners at the chine between the bottom and side of the hull) of the frames.