Re: RC Putt Putt
- Hi all, thanks for the response and good ideas.
Paul, re articulated tubes. Actually I think this would work well as all my boats have nozzles and if they are installed crooked the boat goes in circles. I remember one of my first boats that didn't track well because the builder (me)built the hull with a curve in it. Corrected it's desire to turn left be canting the nozzles a tad. Hose would work but it takes considerable power to bend a short piece of hose and long pieces affect performance.
Pete....Started with a horizontal rectangle of about 2 sq in then added a vertical square for a total of about 3 sq in. I agree with bow rudder and it is already on my list of things to think about and maybe do if RC becomes more interesting than SPEED.
Frank.....Actually I did not steal from my grandson. I simply explained to him what happens to bad boys and he gave it to me.
--- In email@example.com, "Pete B." <georgeyyy@...> wrote:
> Hi Frank,
> We must be on the same wave length. As you said long boats are typically
> unwieldy. They act as their own rudder. Trying to change their direction
> by mechanical means is difficult at best. In my reply to Daryl I
> suggested placing a rudder in the bow as you did.
> Fulton found his original 1807 "Clermont" extremely difficul to control.
> It was approximately 133FT long and had a 13 FT beam. The steering
> mechanism was a tiller in the stern. When he enlarged the boat that
> Winterhe increased its size to approximately 150 FT with an 18 FT beam.
> He improved the rudder to be moved by a forward mounted ship's wheel and
> pulleys thus giving the coxswain much better visibililty and much easier
> time of steering.
> --- In firstname.lastname@example.org, "Frank McNeill"
> <frankmcneilll@> wrote:
> > Hi Daryl,
> > Long narrow boats typically do not steer very well. That is why bow
> thrusters were invented. In lieu of a bow thruster, tape your very big
> rudder to the bow of your 2 foot boat to find out if changing the angle
> of the rudder changes the boat's heading.
> > You should also return the stuff you stole from your grandson before
> he notices that it is gone. Grandsons remember every bad thing their
> grandfathers have ever done and will still be telling people about it
> when you are as old as I am now.
> > rotten old grandfather/great-grandfather, Frank
> > --- In email@example.com, "darylcanada73"
> darylcanada73@ wrote:
> > >
> > > Tried this first with a modest sized rudder and RC car stuff I stole
> from my grandson. Turning radius of about 15 feet for a 2 foot boat. Not
> good. With a vary big rudder the radius came down to about 10 feet. With
> a rudder on 7 of 8 tubes the radius came down to about 3 feet which
> could be OK but it really hurt the power slowing the boat by more than
> half. (See my photos.)
> > >
> > > Articulated nozzles could work better and might keep the water jets
> more intact. Perhaps a reasonably simple way would be to use short
> sections of larger diameter tube installed over the exhaust tubes and
> attached similarly to the rudders I used.
> > >
> > > Did any of you try this?
> > >
Thanks for the update. SOunds like an interesting project. Keep us posted.
--- In firstname.lastname@example.org, "darylcanada73" <darylcanada73@...> wrote:
> Just in case you were wondering............
> Finally got around to trying articulated tubes for steering.
> It did not seem to affect the operation of the engine and the boat would turn, but, to get it to turn well would require more precise engineering than I was interested in doing.