New Boat Build For Beginners
The object of this excercise is to introduce newcombers to model Gas Boat Building and running
The boat that we intend to build is going to be used in our club as an entry level boat for Novice Class Whippersnipper racing.
The specifications are:
Boat Length:not more 1200mm in Length.
Motor:Whippersnipper up to 30cc, Stock Configuration,only,with Canister Muffler. Surface or submerged drive can be optional as can trim tabs and turn fins.
As you can see these specs were set up so as to make it an easy to start racing, and designed to keep the cost of boats affordable and at the same time competitive.
The boat design must be:
Easy to make.
Motors must be easy to obtain
Parts and hardware must be readily available
Boat must be easy to Maintain and affordable.
With this in mind the next step was to find a suitable hull and motor.
Good to hear any comments
I saw on another boating forum site where they have a proposed 2"x4" class. Retail price of the gas engine, less than $100.00, make your own running hardware as much as possible and build your own hull from low-cost wood like door skins. They wouldn't be fast but it could result in some close racing.
Thanks for the comment Ron, Sounds similar to what we are trying to achieve. Here in Aus there are a couple of engines around the $100 mark new and we are able to pick up secondhand Whippersnippers for as little as $25. The hardware we are useing at present utilises an Octura prop strut and wedge rudder and the rest we fabricate from plans that we can supply to our club members,this helps to keep costs down. If anyone wants a copy please let me know and i will email them to you.The design can easily be made useing only hand tools. The Rudder is one of the most expensive items and in future we will hopeing to make our own units.The club has just purchased a milling machine and we would like to machine the wedge profile on this.
At present we are looking into a hull design that will perform well in the conditions that we operate in. Our Club Pond is inground and the walls and floor are concrete lined with a polythene membrane, the water is about 30" deep. A geat pond for retreiving boats from, However when raceing this creates a lot of chop,as the wake from the boats hit the wall and the backwash can make running quite exciting.
We have been looking at different fibreglass hull designs to handle these conditions as the hull we have been useing, which we were having made is no longer available. One option is to use our old hull as a template and modify it to improve its handling ability and make a new mould. Some of our club members are experienced in fibreglass an could well do this job. The members could then cast there own.The other option is to make the mould and get a fibreglassing company to cast hulls for us. If we get a few to do this could work out cheaper than doing them ourselves, and the hulls would possibly be of a higher standard.
Any comments will be appreciated. Ian...
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