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Footy Sparrow

The Forum for RacingSparrow radio controlled yachts. Focussing on build your own scratch building, free plans for download and a comprehensive builders guide book.

Best wishes and happy sailing, Bryn Heveldt.

Footy Sparrow

Postby racingSparrow » September 2nd, 2014, 1:07 pm

I've designed a double diagonal footy as a prototype.
I have built a quick planked hull but have not finished a build or sailed one.

I hope people can give it a go and see if it sails ok or not. The lines are a bit crazy and odd, I'm trying to be creative. I may end up simplifying the hull shape to make it easier to plank.

I'll update this post with more detail etc soon. Just thought I'd share the plans so people can use them if they want.

free plans are here:
http://www.racingsparrow.co.nz/docs/foo ... row-v1.pdf


footy.jpg

footy-2.jpg
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Re: Footy Sparrow

Postby exrhodie » September 2nd, 2014, 8:06 pm

Looks very interesting. I have been toying with the idea of building a footy for my wife so that she can get as much enjoyment as I do out of sailing. I'm sure I will give it a go in the near future. I will probably have to move home as the place I am in now doesn't really have space left even for a footy. Thanks for the plan.
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Re: Footy Sparrow

Postby racingSparrow » September 2nd, 2014, 9:38 pm

no worries, i would love to hear how the design sails, and also how much lead keel is needed. Im sorry I can't put time into testing out my idea.

Bryn.
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Re: Footy Sparrow

Postby mikelimajuliet » October 9th, 2014, 11:47 am

I might give this a go after the success with the RG65 Sparrow build last year. Would it cope with a Mcrig and soft sails I wonder? :?:
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Re: Footy Sparrow

Postby DonaldB » February 19th, 2016, 1:00 am

I am going to give this a bash. The balsa is baught and the plans printed. Now to get to the real commitment and that is find space and time. I have no planking experience but am willing to learn so if there are any out there with some handy hints please fire away.
One burning question is the rig and the fin?
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Re: Footy Sparrow

Postby DonaldB » February 23rd, 2016, 8:18 pm

Racing sparrow could you possibly indicate the thickness of the planks you used please?
After a first attempt I have now gone and done the Google thing to find out more about planking a model boat and will now be doing mine over again. Looks like a lot has to go into the prep before you start.

More to follow hopefully with some pics.

PS. I like the lines of this one.
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Re: Footy Sparrow

Postby racingSparrow » February 24th, 2016, 9:37 am

hi there, sorry for the delay,

the planks i used were either 1.mm thick or 2mm thick balsa.
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Re: Footy Sparrow

Postby DonaldB » February 29th, 2016, 7:00 pm

A lot of work done this weekend. Let's see if the pic is going to show.
Attachments
20160229_080406.jpg
Covered in wood filler
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Re: Footy Sparrow

Postby DonaldB » February 29th, 2016, 7:06 pm

Ok that worked.
Note to folks wanting to build this boat and have never done planking before. Do your homework on how to plank. There are a lot of very good articles on the web. Been there done that, do the homework or you will have to start over just like I had to. If words like "drop planks" and "stealers" don't mean anything to you, go and look them up before you start.

Still a lot of work to do, but hey that is the fun part.

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Re: Footy Sparrow

Postby DonaldB » February 29th, 2016, 7:59 pm

Just another pic to show I did actually plank the hull
Attachments
20160229_094719.jpg
from the inside
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Re: Footy Sparrow

Postby DonaldB » February 29th, 2016, 8:53 pm

racingSparrow I have a question at this stage. I purchased your eBook and would like to know if I could use the same plan for the keel box and rudder in this boat?

Donald
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Re: Footy Sparrow

Postby racingSparrow » March 1st, 2016, 9:47 pm

yea same designs could be transfered to the footy, just at a smaller scale, you probably wont need aluminium for the keel, just some ply wood would do the trick.

I think the real trick with this small size boat is saving weight everywhere possible.
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Re: Footy Sparrow

Postby DonaldB » March 7th, 2016, 10:30 pm

Hi racingSparro
A few more questions:
-Could you possibly give the keel position measurements from the stern to the front of the keel?
-Will a normal Una rig work on this hull or will it then not fit in the box?
-Am I correct in seeing that the front deck does not end at the former?

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Re: Footy Sparrow

Postby BiggsDarkLighter » November 8th, 2016, 10:23 am

Almost everything you need to know, is shown on the plans. Although a bit difficult to read, the info is there.

The grid drawings are the key. Each small square is 1cm. Large squares are 100mm. Total length is roughly 340mm.

I don't know exactly the best waterline, but the hull has a displacement of 360g - 400g. 360g is with the bow just above the water, and the stern just touching. 400g puts the stern 1/3 into the water. This is the solid section of the stern, not the built up sides.

I am building one here: The first three pages are just random discussion. The first post is edited with a link to where the build actually starts though.

Keel lead amount will obviously be determined mostly by what weight is left to use for it....

Bryn, do you have better side views with the full grid you could post up???
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Re: Footy Sparrow

Postby BiggsDarkLighter » November 8th, 2016, 9:44 pm

Alright, I went through a lot of effort to get measurements off the low resolution side view. These aren't extremely accurate, but should be close enough. You can find the info in my RCgroups post HERE:

If Bryn sees this and donates some better views, I might redo it with them. I really want to get my hands on some better source files...
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Re: Footy Sparrow

Postby racingSparrow » November 15th, 2016, 7:56 am

Sorry for not seeing this until now. I'll dig around my files tonight and see if I can provide some better detail. The plans are quite rough indeed. But I'm sure I can clarify a few things.

bryn.
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Re: Footy Sparrow

Postby racingSparrow » November 16th, 2016, 8:55 pm

Ive had a look at my source files and sorry but I don't have further detail to add at this stage.

I think what is required is a prototype is built and measurements adjusted accordingly.

As the plans say, they are just a prototype, untested.
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