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Velocity..the newest addition to the fleet.

Old 11-01-2009, 07:16 PM
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crispyspa
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Default Velocity..the newest addition to the fleet.

Started building another plastic hull. I shall call it Velocity. LOL

CY 27cc engine
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Old 11-01-2009, 07:43 PM
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2manytoyz
 
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Default RE: Velocity..the newest addition to the fleet.

Looking good! Now you have to tell us more about it. Did you buy the plastic ribs or make them yourself?
Old 11-01-2009, 08:18 PM
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Default RE: Velocity..the newest addition to the fleet.

I'll send you some more plastic so you can make mine at the same time. Looks good....
Old 11-01-2009, 08:47 PM
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Default RE: Velocity..the newest addition to the fleet.

I'm watching this build.
Old 11-01-2009, 09:35 PM
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Default RE: Velocity..the newest addition to the fleet.


ORIGINAL: 2manytoyz

Looking good! Now you have to tell us more about it. Did you buy the plastic ribs or make them yourself?
Everything is cut in the garage from a 4x8 sheet of plastic.
Old 11-01-2009, 10:30 PM
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Default RE: Velocity..the newest addition to the fleet.

So far so good...

Did you use a CAD program, print the patterns on paper, and cut them out with power tools (bandsaw, scroll saw, etc)? I do similar things where I work with plastic, wood, and aluminum.

I use spray adhesive on the back of the paper, then stick the pattern to the material. Let it set a few minutes, then cut & drill as necessary. When I'm done, I peel off the pattern. Simple example of the method:











Similar method?
Old 11-01-2009, 11:04 PM
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Default RE: Velocity..the newest addition to the fleet.

Looks good. Very neat cuts. What are the specs?
Old 11-01-2009, 11:21 PM
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Default RE: Velocity..the newest addition to the fleet.

Hey Kurt sooner or later you need to make one of the races. Looks like you are getting the hang of the plastic builds. Looking good.
What is your finish weight? on the plastic hulls RTR.
Tip on the CY engine, take your time with the break in.
Old 11-02-2009, 12:19 AM
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crispyspa
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Default RE: Velocity..the newest addition to the fleet.

No CAD program used, I just jotted ideas down on paper and then drew the individual pieces. I stack rough cut pieces together then make all the final cuts stacked up so the parts turn out the same. I cut using a band saw. I do plan to draw it all out in CAD and offer the prints....if it turns out to be a good design.

It should end up being 36" long, 20 wide. (14 wide on the bottom) and 4" thick.
I'll know more on the finish RTR weight as the build progresses....it's going to be a tank, the plastic is lots heavier than wood.

I would love to come to a race some year.
What is the recommended break in on the CY? I got no paperwork with it at all.
I'm assuming natural oil (not synthetic) should be used.

Old 11-02-2009, 08:41 AM
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Default RE: Velocity..the newest addition to the fleet.

Break In from Oneill Brothers

1. You must break the motor in on 3 full tanks.

2. Do not go passed 1/2 throttle

3. You should use at least 95 octane

4. The gas oil ratio needs to be 25:1

5. You should run the motor for 15-20 minutes and then let it cool down

5. Let your motor warm up before driving

7. Try to vary the speed as much as possible with out going past 1/2 throttle

8. DO NOT GO FULL THROTTLE UNTIL THE MOTOR IS COMPLETELY BROKEN IN

9. Do not use octane booster, if you can not get 95 octane use the highest octane you can get out of pump

I use these steps with a little added to them.
Before starting the engine pour in a cap full of 2-stroke oil through the spark plug hole then crank the engine over a few times with out the spark plug in place.
1. I use 1 gallon of fuel and quick silver 2-stroke oil (do not use synthetic) 10oz oil 1 gallon gas
2. if you have a tack do not rev over 5500. Break the engine under the load of the prop that you are planning to use.
3. I use the trim on the remote to vary the engine speed with given it a few 1/2 throttle bumps. Longer bumps as the engine becomes broke in.
These are high performance engines, they need more oil than your weed eater, 8-10oz per gallon. I have tested many different oils, stay away from the off brands and cheaper oils. Strongly recommend using Quick Silver.
Old 11-02-2009, 12:50 PM
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Default RE: Velocity..the newest addition to the fleet.


ORIGINAL: crispyspa

No CAD program used, I just jotted ideas down on paper and then drew the individual pieces.

SNIP

I'm impressed! I'm too lazy to hand draw anything anymore. You're obviously good enough at hand drawing for this task. Looked like you used CAD!

Keep us updated.
Old 11-02-2009, 06:13 PM
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Default RE: Velocity..the newest addition to the fleet.

Looks nice. What weight are you shooting for? If you get your weight right that CY 27 will make that boat haul @$$.
Old 11-03-2009, 12:24 AM
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Default RE: Velocity..the newest addition to the fleet.

Thanks for the break in instructions Hal.

I'm going to try to stay under 20 Lbs, but as I said, the plastic is lots heavier than wood...more expensive too, I picked up another sheet today to the tune of $52 for a 4x8 sheet. [X(]


The first two pics are showing the notching at the transom.
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Old 11-03-2009, 01:00 AM
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Default RE: Velocity..the newest addition to the fleet.

That is looking good. It looks like a CNC machine has done the cutting.
Q: How did you cut the notch on the transom? Very neat.
Old 11-03-2009, 02:16 AM
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crispyspa
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Default RE: Velocity..the newest addition to the fleet.

Thanks for the compliment Rowboat.

I did all the cutting with a band saw. The transom and the stringers are two pieces laminated together...the transom was laminated after the notches were cut.
Old 11-03-2009, 03:29 AM
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Default RE: Velocity..the newest addition to the fleet.

WOW[X(] a band saw , i thought that that kind of saw would leave saw teeth marks in the ABS . Very straight cutting. Good work M8.
Old 11-03-2009, 07:48 PM
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Default RE: Velocity..the newest addition to the fleet.

Spent yet another day in the garage. Weight with top deck is 10Lbs.

I have to wait for the aluminum to come in before I go any further.
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Old 11-03-2009, 07:58 PM
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2manytoyz
 
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Default RE: Velocity..the newest addition to the fleet.

Looking fantastic! Where did you source the plastic and how thick is it? Inquiring minds...
Old 11-03-2009, 08:24 PM
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Default RE: Velocity..the newest addition to the fleet.


ORIGINAL: crispyspa

Thanks for the break in instructions Hal.

I'm going to try to stay under 20 Lbs, but as I said, the plastic is lots heavier than wood...more expensive too, I picked up another sheet today to the tune of $52 for a 4x8 sheet.
You are welcome.
under 20lbs with the engine you have, may not prove to be a good thing. Just finished one, made it lite 19lbs, now I'm having a hard time keeping it in the water. I added 8oz of epoxy and 5 steel studs to the front deck, now handles better, but still on the lite side. I order a 23cc that I'm going to install on this boat, the 27cc is a bit much for it.
$52.00 for a 4'x8' sheet sounds good to me, the wood I use, for that size I'm looking at $140.00 to $160.00
By the way what are you using to hold every thing together?
Old 11-03-2009, 11:32 PM
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Default RE: Velocity..the newest addition to the fleet.



ORIGINAL: 2manytoyz

Looking fantastic! Where did you source the plastic and how thick is it? Inquiring minds...
Thank you.
1/8" thick, smooth one side, textured on the other.
[link=http://www.regalplastic.com/]Regal Plastic[/link]

There are other companies out there,but this is the closest one.

ORIGINAL: Mr Cajun Gator


By the way what are you using to hold every thing together?
I use Methyl Ethyl Ketone (MEK). (It's a strong solvent available at Ace Hardware)

I take small scraps from the build process and make a homemade glue by melting the plastic in the MEK. It essentially "welds" the plastic together.
To shine the boat up after sanding, I take a cloth soaked in MEK and wipe the boat. It removes the sanding marks and leaves the surface with a shine.

It says to use with adequate ventlation but eye dew beeleave that ees knot reqwired...eye lways feal fyne after useiung it fore long periods of tyme. eet hazent affected mee en annknee wayy.

Old 11-03-2009, 11:58 PM
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Default RE: Velocity..the newest addition to the fleet.

Crispyspa could you show a closeup of one of the joints? That plastic may be the way to build solid hulls without costing an arm and a leg. Have you had any joints come apart or suffered any damage from hitting something? If so, how easy or hard is it to repair? That is a sharp looking hull. Dennis
Old 11-04-2009, 11:12 PM
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Default RE: Velocity..the newest addition to the fleet.

ORIGINAL: DJLaPalme

Crispyspa could you show a closeup of one of the joints? That plastic may be the way to build solid hulls without costing an arm and a leg. Have you had any joints come apart or suffered any damage from hitting something? If so, how easy or hard is it to repair? That is a sharp looking hull. Dennis
The joints, if not joined properly (like building with wood) will be weak. All of the damage Ive ever done was in the winter and it usually involved a 40MPH barrel roll or slamming into a fence post. Repairs are fairly easy. The plastic starts to get brittle around 0° F and will break if hit hard enough....otherwise it will take a severe pounding.
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Old 11-04-2009, 11:45 PM
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Default RE: Velocity..the newest addition to the fleet.

looking real nice crispy. would like to race aginst it one day.
Old 11-05-2009, 07:54 AM
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Default RE: Velocity..the newest addition to the fleet.

Hey... I only see one model in the pics. I sent you the money via wire transfer like you asked. SO where my BOAT.[:-]
Old 11-05-2009, 03:18 PM
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Default RE: Velocity..the newest addition to the fleet.


ORIGINAL: asmithnc

Hey... I only see one model in the pics. I sent you the money via wire transfer like you asked. SO where my BOAT.[:-]


you so funny Andy.I already sent your boat and I got the delivery confirmation.....so what did you do with it?

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