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JetChopper30 mono deep v hull FRP ELECTRIC

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JetChopper30 mono deep v hull FRP ELECTRIC

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Old 12-07-2011, 04:51 PM
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Old 12-07-2011, 04:53 PM
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Old 12-07-2011, 04:55 PM
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Old 12-07-2011, 04:56 PM
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Old 12-07-2011, 04:58 PM
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Repeated posting. Deleted.
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Old 02-09-2012, 05:49 PM
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Electric.

Looking for distributors for this product:





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Old 02-10-2012, 02:23 AM
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Default RE: JetChopper30 mono deep v hull FRP ELECTRIC

Congrats, looking good
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Old 02-11-2012, 07:07 AM
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Default RE: JetChopper30 mono deep v hull FRP ELECTRIC

When will fiberglass hulls be available?

How much are they in USD$$$$?

ryan@caraudiocentral.net
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Old 02-15-2012, 05:53 PM
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Default RE: JetChopper30 mono deep v hull FRP ELECTRIC

First made item:



Forthcoming items would be joined by coloured resin to make the joint invisible:




Looking for distributors.
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Old 02-17-2012, 01:48 PM
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Default RE: JetChopper30 mono deep v hull FRP ELECTRIC

Set up for race NAMBA P-Limited MONO class:

http://www.youtube.com/watch?v=VbGoaJU_G0M

Boat set up and video by: rcboatbuild@hotmail.com
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Old 03-22-2012, 01:34 PM
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Default RE: JetChopper30 mono deep v hull FRP ELECTRIC

Almost standardized process of making:





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Old 03-22-2012, 02:15 PM
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Old 05-09-2012, 05:57 AM
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Default RE: JetChopper30 mono deep v hull FRP ELECTRIC

As boaters suggested. Need a stronger boat bottom. Tested with one with the rear 55% of the bottom and transom made with double fiber layers, equivalent to 600g/m^2. Weight increased by 90g. Feel that the bottom is now very strong. The hull weight is now 850g.

Believe that can make the whole bottom and transom with double fiber layers and can maintain the same shipping cost. Estimated hull weight should be 880g.
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Old 05-17-2012, 10:58 AM
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Default RE: JetChopper30 mono deep v hull FRP ELECTRIC

Here's a video of one of Leos' JC30 hulls I built up.
It's running a Proboat 1500kv 6 pole motor & an Aquacraft 45A ESC. M645 prop & 4s1p lipo. That's our clubs' Restricted Mono rules.
I will try the 4082 220kv motor on 4s this weekend.for our EA Mono specs.

[link]http://www.youtube.com/watch?v=l5-TeEnhjWI[/link]
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Old 05-17-2012, 02:29 PM
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Default RE: JetChopper30 mono deep v hull FRP ELECTRIC

How much for a hull?

Whats shipping to USA?
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Old 05-19-2012, 11:59 AM
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Default RE: JetChopper30 mono deep v hull FRP ELECTRIC

Basstronics.
You'll have to send Leo a PM to find out. Mine was around $80.00 delivered to Australia. Shipping costs would be a big factor I guess.

Well, we had another test yesterday with a 4074 2200kv motor & a 440/3 blade prop. Got a bit flighty, especially in the corners. But A bit more tuning today will fix that I hope. If not, then I'll have to remove the ride plate, as that usually takes a bit of lift out of the hull.

Here's a bit of vision.

[link]http://www.youtube.com/watch?v=ddKZ6XbLxSo&list=UUmckFCp5vHpw83p9Hn-l1hg&index=2&feature=plcp[/link]
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Old 06-03-2012, 10:56 AM
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Default RE: JetChopper30 mono deep v hull FRP ELECTRIC

Hello boaters,

Since the bottom made with 600g/m^2 fiber. JetChopper30 hull specification changed to:
Weight(new): 850g(1.87lbs)
Bottom and transom shell thickness(new): 2mm

Deck and hatch shell thickness: 1.4mm
Length: 760mm(29.92inches)
Width: 230mm(9.06inches)
Height: 129.5mm(5.1inches)
Deck to keel height: 100.6mm(3.96inches)
Resin: polyester
Fiber: MAT, 300g/m^2 for deck and hatch, 600g/m^2 for bottom and transom
Surface material: gel coat

The bottom and transom are now very strong. Yet, some sort of rails, connecting rods for the motor mount are still highly recommended.

Happy rc boating,


Leo
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Old 06-03-2012, 10:57 PM
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Default RE: JetChopper30 mono deep v hull FRP ELECTRIC

Sounds like some good changes Leo. I think you are on a winner here. I love this baby! Now I've got it running the way i like it, I'll be racing it at our clubs next meeting.
I'm running a Leopard 4074 2200kv motor in it on 4s spinning a 4214/3 blade prop.

For anyone interested, I used 6mm carbon fibre rods & a 1/8 ply battery tray to strengthen the motor mounts & stiffen the hull. Works a treat. Ply rails would also work, well as always.
See the attached pics.
Here's a video from one of our club days with some footage of some test runs.. The blue boat hitting the tree is also mine. A bit embarrassing that. You've gotta love the blown Ford V8 on the Wildthing at the start.

[link]http://www.youtube.com/watch?v=iKJJemGHF3U&lc=2AMsElqY9QH3SKmfVKSYu5apt1aM5qPIjMP_zaUPeYE&lch=email_reply&feature=em-comment_reply_received[/link]

Crank up the volume.
Paul.
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Old 05-20-2014, 01:10 PM
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We tested with different RUDDER SETUP. Found that this setup has pretty good stability to turn at full thottle:

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Old 08-01-2014, 10:31 AM
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http://www.modelgasboats.com/resourc...tricks/tuning/


Refer to Glenn Cupit's article on rudder set up, RUDDER "CASTER", A LITTLE CAR TALK, BACK TO BOATS. Articles talk about rudder length and rudder lift. With many testing, I got the following conclusion on JetChopper30 set up:


Offset the rudder 55mm to the right. Pretty stable turn at full throttle. Rudder too close to the centre line has too much prop., keel lift, lower turn stability. In perfect situation, rudder lift just balance the prop., keel lift.


Happy rc boating,




Leo

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