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View Full Version : Fountain Rio 30"



SJFE
11-06-2007, 04:00 PM
I have chosen this hull for a twin motor semi scale sport boat because of it's great scale looks. The hull scares off alot of builders off due to the rake of the transom. I am unafraid. In case you havent noticed from the pictures the hull is rather slim(30x6). In my opinion the counter rotation of the props will stablize the boat @ speed. I have chosen the Traxxas Villain drive system. I will need to make quite a few mods to it as you will see. The power system on the other hand is completely up in the air. I would love suggestions from my fellow builders. Keep in mind this is a sport boat. That being said I am open to brushed or brushless systems. I have decided on 3s-1p per motor. This is going to be a winter long build. I am going to extreamly meticulous with the construction of this boat. Expect lots of carbon fiber fabricated parts and a very clean layout. It took me just over 2 hours to trace & cut those vinyl windows and hatches out free hand. My goals are 30mph, decent run time and a nice model for the shelf. Nothing more. I have no time table how ever long it takes is fine. Here are the first batch of pictures. Check out the scale next to the other boats.

http://i42.photobucket.com/albums/e343/STOAK/DSC01366.jpg

http://i42.photobucket.com/albums/e343/STOAK/DSC01365.jpg

http://i42.photobucket.com/albums/e343/STOAK/DSC01369.jpg

http://i42.photobucket.com/albums/e343/STOAK/DSC01370.jpg

SJFE
11-06-2007, 04:02 PM
More Pictures.

http://i42.photobucket.com/albums/e343/STOAK/DSC01367.jpg

http://i42.photobucket.com/albums/e343/STOAK/DSC01374.jpg

http://i42.photobucket.com/albums/e343/STOAK/DSC01377.jpg

kck741
11-06-2007, 04:46 PM
How about two 12 turn trinity 550 monster motors.Just an idea thought id throw it to you

Eyekandyboats
11-06-2007, 05:27 PM
scare off alot of people?
lol just usejack plate not to hard at all.

Nice boat however Skinny. yeah your right. but its will be a nice scale boat.

SJFE
11-06-2007, 06:16 PM
scare off alot of people?
lol just usejack plate not to hard at all.
Thats my attitude also man :wink:. But from what I'm told hardware issues are the main reason it don't sell along with the 6 inch beem.

G Doggett
11-06-2007, 07:44 PM
Good to see someone else 'brave' enough to try this cool looking boat.
I have a white one ( bought from OSE of course) that I am doing as a scale model of Rio Roses Fountain with all the correct decals.
I have made my own strut and rudder mount ,because nothing store bought will fit, and will power it with an SS1 on 12 cells.
I'm sure it will go well in a straight line, not too sure about the turns.
I don't expect it to be a serious race boat but that's not what I bought it for.
Graham.

SJFE
11-06-2007, 07:48 PM
Nice man. Are you going to post a thread?

G Doggett
11-06-2007, 07:59 PM
I can post a couple of pictures but the build process has had to take a rain check for a while due to other more important matters, such as trying to sort out my 'twin Jolly'.
Graham.

SJFE
11-14-2007, 07:05 PM
Just a small updat as to setup. I am side lining the traxxas drive equipment for another project. I have devised a way to run a set of Aquacraft stingers. A single rudder will be used. I am taking the angle aluminum stock into work tomorrow. The guys are going to cut it on the band saw for me. It tends to look like I chewed it off when I use a dremmel. The angle is for the interior brackets. I'll slot the transom and run the exterior brackets out for the stingers. The stinger and rudder brackets will be made of a Yellow Kevlar carbon composit I found on ebay. I will pick it up as soon as the Bj26 powersystem sells.

LJH
11-15-2007, 09:05 AM
Tom,
Looking forward to seeing what you come up with, when I was looking for my first hull I found the Rio and really liked the Euro looks of her, but then I did some research and found that with her narrow beam she supposedly did not handle very well and did not like waves.......though I would think a narrow beam would help there. Keep us updated and I may jump on the wagon when I see how you tackle the transom....she is a great looking boat.


Cheers,
Jim

PS...the 11XL I got from you in the spring is still rocking, finally got my OM29 pretty well sorted and have been having a blast with her. I am really inpressed with the speed VS. runtime of the 11XL on 4S2P 4000mah (8000mah total) and either a X445 or a X447. She goes pretty darn well......and I get 8 mins and only putting 5000mah back into the pack and everything is just slightly warm. I just ordered a M645 which I will try out for the flat water days......not that I get many of them on Long Island Sound.

SJFE
11-15-2007, 08:41 PM
Thanks for the comment Jim. I am glad your boat is sorted out and the motor is holding up. I have realistic expectations of this hull. It's going to be a functioning scale model or sport boat. Nothing more.

SJFE
11-15-2007, 09:11 PM
Update: The stinger struts and Carbon Kevlar composite is ordered. Only motors & esc's to go.

SJFE
11-17-2007, 10:29 AM
Yet again I have to revise the drive system. After a crude mock up I discovered a unforseen issue. Drive spacing, if I install both stingers far enough apart for prop & rudder clearence one will be forced out of the water while turning. The remaining thrust from the oposing prop will roll the boat on to it's hatch. So I am keeping the same threw hull bracket mount system. Just reducing it to a single stinger and dual deep rudders to counter prop walk. I have a 7XL in the mail I will run on 3s & 4s. The hull is shaped like a rocket. It may as well go like one too.

G Doggett
11-17-2007, 08:45 PM
I came to pretty much the same conclusion, the hull is so skinny there is no room for twin drives.
I have made my own 'stinger' from K & S stainless tubing and have twin Octura rudders much the same as the picture on the Fine Design website.
If the prop diameter is kept small this hull should go well in a straight line but I suspect it will barrel roll if pushed too hard in the turns.
Graham.

SJFE
11-18-2007, 11:42 AM
Grahm I am counting on those dual rudders to counter torque roll. I am also going to keep the prop size down. With a 7XL that I wont have much of a choice anyway. I really do want to bolt a speedmaster stinger to the bracket but.. I have spent the money on the AC stingers already & I still need to pick up another rudder. Not to mention I have another build going now.

G Doggett
11-19-2007, 10:15 PM
Looking good.
Now that the strut is positioned where you want it, why don't you drill thru the bracket for the second bolt.
There is going to be a lot of leverage from that long strut.
I would hate to see all your good work come to grief.
Graham.

G Doggett
11-19-2007, 11:00 PM
Heres a shot of the back end of my Fountain showing my home made strut from left over bits of stainless tubing and alloy, with a Speedmaster bush inside.
Forget the rudder, it has since been replaced with twin small Octura rudders.

Also thought you might be interested to see how I have secured the front of the hatch with two long pop rivets epoxied to the hatch locking into holes under the deck. I'll still seal it with tape but I figure there is less chance of it being blown off in a spill.

My Fountain has been gathering dust for months but you have got me motivated to finish it.

Graham.

SJFE
11-19-2007, 11:24 PM
I like your brackets. Nice stuff. I am going to mock up a bracket outside of the hull before I attempt to slot and mount from the inside. looking at yours I am less aposed to it now. My rudders are going to be Deep..lol. I may trim them after testing. Just a hair @ a time. Thanks for sharing.

SJFE
11-22-2007, 09:35 AM
I am going to pull that Stinger. I'm not convinced it will have the ajustment that will be needed. I believe fabricating a strudder with a standered stand off strut will make for better performence. I am still sticking with twin rudders for now. I will be back to work next week.

G Doggett
11-22-2007, 01:49 PM
Why don't you stick with the SV stinger but make your own mounting brackets from angle alloy. That way you will have a small amount of adjustment.
I have found with my DVs that the best allround position for the strut or stinger is parallel with the keel and mounted as low as possible on the transom.
I keep them locked in that position and make adjustments for water conditions by moving the batteries and trim tabs.
I believe if you are having to angle your drive more than a degree or two you are compensating for a problem somewhere else.
Graham.

SJFE
11-24-2007, 10:53 AM
Thanks for the suggeation Graham. It would work but I am going in a diffrent direction with the strut. I have a perfectly good SpeedMaster strut I ca use. I am drawing up a single strudder with extention brackets for twin rudders. I just dont thing the AC strut will be the right choice for this hull. Wish I would have realized it before the install. But it took that to make me see what I didn't like about it on this hull.

Eyekandyboats
11-29-2007, 06:58 AM
To get nice bends just heat up the tube till red hot every where, and it bends very easily.
cool it down of course before you touch it ! lol

SJFE
11-29-2007, 05:01 PM
I am going to heat it tonight + I have the brake line bender. Simple but nice tool. I am going pick one up the next time the MAC tool truck comes to the shop. That is if I use this tubing. I hade another one of my "Ideas" today.

Eyekandyboats
11-29-2007, 05:16 PM
good luck .

PS did that chat thing ever take off ?

SJFE
11-29-2007, 05:23 PM
That room I created was a test drive of the server. The server seems to be stable. I am in the process of learing how to program the AI, script, bot what every the geeks call it. Once I stop seeing lines of code and start seeing the matrix I think I will have it...lol

SJFE
11-29-2007, 05:26 PM
As for the boat I got my carbon kevlar composite panel today. .125 thick!!!!! I am going to have a hell of a time cutting it but it is extreamly light and almost impossible to bend.

SJFE
11-30-2007, 11:11 AM
With the demise of the Sport Cat I had a project with out a boat. So my solution was to build a Sport Mono. This hull was at a stage where it's possible. I am going to completely finish it before I post any more pictures or information. I change my mind on the configuration @ least twice a day. I did get a new drive system installed last night. I had to cut out the old motor mount and remove alot of DC..was a huge mess but was with out tragidy.

SJFE
12-01-2007, 10:13 PM
I have hit it hard the last 2 nights. I have to pack it early this evening. Weather is on the way and I'm on stand by. So all I have left is steering, water cooling & wiring. First thing was to patch the cf in the botton where I sanded out the DC. Then I decided on a vertical esc mount. I figure it will be easer to run the wires and keep it out of any water. I cut up the wood servo and receiver mount from the blackjack for my other mounts. The tx mount is CA'ed to the hull. The servo is epoxied in. Back in the stern is the carbon kevlar plate. I needed to extend the transom up just a little for some range of movment or ajustment on the outdrive. I used such a big piece of plate in order to cover the mount holes from the stinger. That motors just in there so I had an idea of spaceing. I will have the motor and esc delivered next week. End to end packs fit along side the gear drive fine. Side by side backs have to be put on edge along with 4s packs. I may not get any more done this week due to weather and the Mrs upcoming off week.

http://i42.photobucket.com/albums/e343/STOAK/DSC01460.jpg

http://i42.photobucket.com/albums/e343/STOAK/DSC01461.jpg

http://i42.photobucket.com/albums/e343/STOAK/DSC01468.jpg

http://i42.photobucket.com/albums/e343/STOAK/DSC01466.jpg

SJFE
12-01-2007, 10:14 PM
Last 2 shots

http://i42.photobucket.com/albums/e343/STOAK/DSC01463.jpg

http://i42.photobucket.com/albums/e343/STOAK/DSC01477.jpg

G Doggett
12-01-2007, 10:30 PM
Aah the old steerable stern drive trick ! - I like it.
I'm still sticking with the home made 'stinger' and twin Octura rudders on mine, and even with the fat SS1 it is possible to have the battery packs either side of the motor on their sides.
Keep up the good work.
Graham.

SJFE
12-02-2007, 09:21 AM
Thank you Sir :wink:. If you change your mind @ any point I have 1 more complete drive system exactly like that and 2 that need a few parts to me complete. We can work something out I'm sure:).

Eyekandyboats
12-02-2007, 10:18 AM
Honestly.. i don't know what to say.
Sorry Tom the SV drive was about 102% better

SJFE
12-02-2007, 11:14 AM
It may have been. IMO it was more trouble than it was worth. On top of that, at that time this boat was going to be brushless. Now it is going to be a brushed sport boat. What it boils down to really....I like it & thats the most important thing :). Besides if I become unhappy with it..well there is the dremel :D.

SJFE
12-02-2007, 10:15 PM
I made some good progress this evening. I have one more night to build before out off week. I got the water cooling & steering done. I cut a gundert pick up in half and added some extentions to make them easer to work with. I used male bulkhead fittings for outlets. I liked the way the tub extentions looked. I also got the top of the transom extention painted. The match isent perfect but close enough. I will have the esc, motor, tabs & turn fins delivered this comming week. If I get a nice day weekend after next I will test.


http://i42.photobucket.com/albums/e343/STOAK/DSC01481.jpg

http://i42.photobucket.com/albums/e343/STOAK/DSC01486.jpg

http://i42.photobucket.com/albums/e343/STOAK/DSC01485.jpg

http://i42.photobucket.com/albums/e343/STOAK/DSC01487.jpg

Avanti
12-02-2007, 10:30 PM
looks like overkill on your water pick ups but it should definitely stay cool

SJFE
12-02-2007, 10:54 PM
As I always say "anything worth doing is worth over doing" :wink:

SJFE
12-06-2007, 11:20 PM
I am going with the Velinon system in this boat. Gears and ujoins are cheap enough. On 2-s I will get 25900 unloaded. I will order the system after the holidays :).

Mich. Maniac
12-08-2007, 01:22 PM
Thats just great stuff SJFE! Awesome pick for a sport runner in my opinion. Shouldnt give ya any grief with that strong setup either.

SJFE
12-11-2007, 10:01 PM
I got back to work this evening. By the time I got the desk cleaned off and organized I was beat. So I just got the turn fins on before calling it a night. Tomorrow night I'll epoxy the steering guid tube, turn fin bolts and drill out the antenna mount. That will be it untill I can aford the power system.

http://i42.photobucket.com/albums/e343/STOAK/DSC01497.jpg

SJFE
12-12-2007, 10:35 PM
I got the test power system installed tonight. I spooled it up on 4s and was quite impressed. If it runs half as good as it sounded I'll be happy. I pulled out the receiver mount and relocated it. The turn fins also came back off. For some reason the where towed in and I couldent get a good enough bend in them to fix the problem. Time to pack it in for the night. Nothing good comes of me working when I'm tired...lol

http://i42.photobucket.com/albums/e343/STOAK/DSC01500.jpg

http://i42.photobucket.com/albums/e343/STOAK/DSC01499.jpg

txboatpilot
12-12-2007, 10:59 PM
:thumbup: I like the dual water outlets!! Should shoot water up like a Jet Ski!! LOL ..... Cool build, should be a blast!!:buttrock:

SJFE
12-13-2007, 02:31 PM
Thanks man. I did that because I can never see if the outlets are flowing. I don't think ill miss them :).

SJFE
12-14-2007, 11:01 PM
Boats preped and ready for testing. I will be running it on 12 Nimh gp3300s to be exact. The 4-s packs just dont fit. When I have the powersystem in it I plan on running I will be on 2&3-s. It will be a much better fit. I will post the test thread along with video tomorrow night.

http://i42.photobucket.com/albums/e343/STOAK/DSC01505.jpg

H&MWill
12-14-2007, 11:51 PM
Lookin good Tom. Cant wait to see video. Will

Avanti
12-16-2007, 01:04 AM
some set up pics I came across thought you might like to see
http://www.finedesignrc.com/aeroriosetuppics.htm

SJFE
12-16-2007, 01:07 AM
Yup Seen them. I don't like those rudders. It's prolly the best setup I bet though. Thanks for the link :)

frostyan
12-16-2007, 01:43 PM
great job on the water pick up . cant wait for the run test video.

Stealth Assassin
12-16-2007, 07:02 PM
Neat water outlets!

SJFE
12-16-2007, 07:43 PM
Thanks guys!! They worked out great.

SJFE
12-20-2007, 09:29 AM
I will be starting a new thread on this boat next week. A very good and talented friend is custom machining me some awesome hardware. I have quite a bit of cutting and sanding ahead of me.

Avanti
12-20-2007, 10:16 AM
can't wait for the pics.