Monday, 25 July 2011

A very short maiden voyage!

I'm very glad I didn't take my son's advice bcz it had a bad leak behind one of the paddle wheels and would have sunk! That's why it was listing so badly. Is {hopefully) fixed now and other wise every thing went to plan, my unconventional twin rudders work well too! It a shame for the video that the top deck lid wasn't down fully.

Sunday, 24 July 2011

99% there.

There is still detail to be added but I hope to launch it some time this week. Being an Aussie vessel you will notice that the skipper has got a few kegs of the amber nectar on board!
Sorry this blog has been over run by this build, to see the footys scroll down to older entries.

Saturday, 9 July 2011

Testing my speed controller.

Testing my built from junk speed controller. That LM338 voltage regulator runs very hot though as it is dissipating too much power, I will try to find a battery closer to the 8 volts or so I actually need rather than the 13 volt one I have at the moment. I guess I could water cool it! But it proves it all works!
From left to right: Direction change micro switch-Servo-Speed potentiometer- Push to break power micro switch -direction change relay.
That hand drill bevel gear drive is a little noisy but that's all part of my boat's old school-low tech charm I guess!

Just added this video!

Friday, 1 July 2011


As you can see I've started to build up the superstructure, to prevent it getting too top heavy it is mainly made from balsa, I have since these photos glued on the splashers and filled in the gap at the top. (and all the gaps where parts don't quite fit!) The battery was nearly flat so quite convenient for a test in the bath, I didn't want full power just a cruising speed and even like this it seemed impressive! The speed regulator board (LM338 chip) has just been tested on my bench and I will try it on the boat's motor tonight, now I need a 12 volt relay for reverse switching and and probably a second micro switch so that the motor is totally disconnected and not draining the battery when in the stop position. The main job left is designing and fitting the twin rudders that sit behind each paddle wheel, this seems far more sensible than one rudder trailing behind in the center where it would have far less influence and be more likely to be damaged.
Btw the doors came from the original aircraft carrier though they weren't doors, kind of louvers of some sort,I turned them round to show the back just bcz i thought they looked like a ships doors, probably more water tight and ocean going than you'd find on a river boat but never mind. I'm also going to use the aircraft lift platform as the bridge's roof as it has a nice planking pattern on it, why not.