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Old Feb 18, 2007, 03:22 AM
SDJ
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Build log My first RC boat.

Hi, just thought I would post a build log of my first scratch built boat, I am new to RC and had to learn about how to build as well as get pretty inventive!, I found that pens and textas make great air vents and ABS plastic welding rod hot formed around a beer bottle neck makes good railing. I also learnt that trying to pin and use rubber bands to hold bent balsa to the hull did not always work the way it should have. we also used to have a wind chime outside with 5 small diameter aluminium tubes, it now has only 3 I looked at a lot of plastic boats and ARF stuff and did not want a boat the same as 3000 other people, I dont know what it is about scatch building from plans but I enjoy it.

Crash boat you tube link
Miami crashboat model (0 min 45 sec)


Although the model goes well someone told me it would go better with different props, apparently I am using surface props if it aint broke, dont fix it is my motto.
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Old Feb 18, 2007, 04:22 AM
Dragon Slayer
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SDJ:
Very good job for a first scratch build.
So what is you next project?
And welcome to the forum.
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Old Feb 18, 2007, 07:07 AM
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boy you did an exelent job ...thanks for the photos...
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Old Feb 18, 2007, 07:11 AM
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sdj what did you seal your hull with ?? its the orange stuff airplane covering or fiberglass cloth hard to tell in the pic.... i am new to building scratch so trying to lurne all the things i can ... thanks again
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Old Feb 18, 2007, 11:58 AM
Grumpa Tom
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Quote:
I am new to RC and had to learn about how to build as well
Well, this explains it. Some people are just natural born scratch builders. Others. like myself, are hopeless dimwits.

Very nice job, SJD!
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Old Feb 18, 2007, 02:09 PM
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If I tell you how absolutely 'tacky' and poorly built it is, would you give it to me?? ... I didn't thinks so. Well, t'ain't bad, even if you aren't very kind and considerate enough to let me have it.
- 'Doc

how 'bout if I offer to pay for the shipping?
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Old Feb 18, 2007, 03:30 PM
SDJ
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Thanks for all the comments, Larryg the orange stuff is plain old tissue from the newsagentcy, I was told to put in the hull dry and when I paint the dope over it, it would soak through and stick, right? wrong had to whip it off and paint hull with dope then place tissue over and paint again.
When building a model I found you have 2 choices, try and shape the balsa to look like a boat or cut away the bits that dont look like a boat.
Doc build a really powerfull transmitter and sail it over, watch via google earth watch, I will attach a barge full of batteries, watch out for icebergs, lol.
Regards Steve.
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Old Feb 18, 2007, 04:42 PM
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sdj what is the plan name ? i really like your boat allmost looks like a small PT style hull . thanks again
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Old Feb 18, 2007, 11:52 PM
SDJ
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Plan name

Hi Larryg its a Miami crashboat as featured in Model boats magazine June 2006, I also liked it because it looks like a pt boat and would not be 2 hard for halfway decent scratch builder to make into a PT boat. follow this link http://www.hobbygroup.org/srcbm/plans.html to get plans.

I also agree with the plan author and think this hull would make a good open cockpit launch, thin wood veneers with high gloss finish etc etc.
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Old Feb 19, 2007, 12:16 AM
SDJ
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Does anyone have an answer regarding the props I am using?? as I said the boat goes well but I have been told these are surface piercing props?? would it go better with 3 bladed props??
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Old Apr 09, 2007, 04:28 PM
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why use tissue paper? does this produce a nice effect wen painting on wood or is this for strength?
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Old Apr 09, 2007, 05:04 PM
Boaters are nice people.
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Quote:
Originally Posted by SDJ
Does anyone have an answer regarding the props I am using?? as I said the boat goes well but I have been told these are surface piercing props?? would it go better with 3 bladed props??
With small props it's important to select a prop that does the job.
Most likely a three bladed one will give you longer runtime, but less topspeed.

I use hydroprops (surface piercing props) quite a lot on small boats with subsurface drive, for speed they're usually a better choice than the three bladed ones.

Just get a few and test it.

Regards, Jan.
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Old Apr 09, 2007, 06:41 PM
SDJ
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tissue paper

Quote:
Originally Posted by remondo
why use tissue paper? does this produce a nice effect wen painting on wood or is this for strength?
Hi remondo, tissue hides the wood grain efect of balsa and helps protect it, from what I have been told, fibreglass does a better job, but my motto is learn slowly buid correctly. (does not always work)
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Old Apr 09, 2007, 06:45 PM
SDJ
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props

Quote:
Originally Posted by pompebled
With small props it's important to select a prop that does the job.
Most likely a three bladed one will give you longer runtime, but less topspeed.

I use hydroprops (surface piercing props) quite a lot on small boats with subsurface drive, for speed they're usually a better choice than the three bladed ones.

Just get a few and test it.

Regards, Jan.
thanks Jan, the boat goes well so I am going to leave it alome for now, though I am going to upgrade the motors and electrics to hobby grade stuff instead of the chinese stuff that it has now, that way when I find other boaters (serious lack off them around here!!) I wont get interferance blues.

Regards Steve.
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Old Apr 09, 2007, 06:51 PM
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dammit I just built a boat from obechi but didn't cover the wood with anything of the sort. I'll just hav to do a few coats of undercoat and sand smooth after each one.
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