This is a 52" twin hull RC catamaran . Built with 3mm plywood. I used fevicol as a glue. But latter switch to araldite. Below are some build logs..

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Great going Chris  .  Subscribed

very nice.

how did you cut ? by hand or power fretsaw

52" is huge .   will be impressive when finished

I used jigsaw to cut the plywood

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I have almost completed 90℅ of the hull.   Some more pics

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More pic

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No clamps. So I took anything I could. To put on some weight

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@desachristopher,

Must be far more difficult using ply as compared to balsa.
Hope you are going to:
1. Have a thin fibreglass and epoxy finish, plus spray painted colours
2. A roaring nitro engine to make this cat really fly
3. Set an Indian speed record for boats
Looking forward to completion...
Regards

Thankx

Diy rudder

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Looking really nice

What do you expect the total weight to be?
What size prop are you intending on using??

👍

looking really good. subscribed
Shreekant

Paint work started

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Amazing work

Amazing Work Chris, Wish I could see it in real, 52" thats huge. BTW That Black stone (Grinding) reminded me of Goan Fish curry that my mom prepares. You found out a new use of that stone.....

nice work buddy ...

the grinding stone was Idle, so I made a good use of it.

@desachristopher,
Lovely primer preparation.
Look forward to outstanding finish!
Regards

Mr. Iyer. tomorrow I'll be painting, hope it comes good.

Quote from: desachristopher on June 20, 2017, 07:32:35 PM
Mr. Iyer. tomorrow I'll be painting, hope it comes good.

Hope you have a good spray gun. Or that you are using spray cans.
This boat deserves better than a brush job...


Edit
And you never told us about that high powered nitro engine...

I have a brushless set ready, thinking of going for a petrol engine. like brush cutters. hope I get one in local market/shops

Red n white

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Hardware painted

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Nice built!  Have you used epoxy fiber glass over the ply?

Yes I sprayed epoxy resin only

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Painting done. Let it dry for couple of days.then I'll start with hardware fittings n decals

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"Kadak" that is what we say here in Mumbai/Thane.

I did not get time to test this cat. Here are the final pics. Will upload d video soon

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Amazing work bro

This is going to burn the water

What a beauty Chris. All the best for the maiden

Amazing build...let the beast ROARRRRRRRRRRRR

WOOOW......this looks better than RTF model.......awesome bro.....just awesome .....

Please share the plans if you don't mind.

below is the link to download the plan, and also some pics. where I have done some minor changes

https://drive.google.com/drive/folders/0B_d0Evd55jm4N2FiRWMxNnFZZEE?usp=sharing

thanks Christopher..

Very beautiful model... excellent finishing. Keep it up

Excellent build christopher

After long time i see the finishing like this. I use to challenge to my friend about mirror finish and you are close to it. nice one and it took me back to 1999 when i built my own designed power boat with ply. very difficult to shape. you have done great job buddy

Thank you my friends.

Im not satisfied with the speed, the motor just cant push, m going to switch it to gas engine.(brush cutter engine)

suggest me guys

Beautiful!

Its got enough speed, do you want more?

I liked it.....

what's the  electronic setup of this monster ?  ? ?

Electronics are 3650 brush less motor. 180a ESC . 5000mah 4s lipo.

I only need to change the motor. Sets a motor on Ali express. 4090 size somewhere around 1200kv . I think it's for enough power to handle this boat. But very costly. In less then what it cost I can get an engine.

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Have you used waterproof ESC?

Quote from: swapnilnimbalkar on October 10, 2017, 10:39:06 AM
Have you used waterproof ESC?

Quote from: swapnilnimbalkar on October 10, 2017, 10:39:06 AM
Have you used waterproof ESC?

No, but I covered it with silicon, as n where needed.

hi where can i get a scale drawing like this

Beautiful...

Quote from: keston_b on August 07, 2018, 05:50:36 AM
hi where can i get a scale drawing like this

Have you even read through the post? See Reply # 33

Excellent build!!!
I watched the entire video log and can imagine your plight building this beauty.
Loads of hard work, patience and perseverance, I must say.

Yes, the boat is slow and you need a Bigger motor for it. I think it can go 4 times the current speed. If you going electric, do use the marine ESC with water cooling. Add a small diaphragm pump if the need be so for cooling.

I am on a similar project with a 48 inch Stryker cat hull and a 26cc motor. I ain't got those scratch building skills nor my patience lasts that long. Lol.

Anyway, good luck and keep updating!

Brilliant... Lovely "Kattumaram"

hi you can use 4260 motor

It's awesome!!!

Quote from: saurabhhsrivastavaa on August 09, 2018, 02:57:26 AM
Excellent build!!!
I watched the entire video log and can imagine your plight building this beauty.
Loads of hard work, patience and perseverance, I must say.

Yes, the boat is slow and you need a Bigger motor for it. I think it can go 4 times the current speed. If you going electric, do use the marine ESC with water cooling. Add a small diaphragm pump if the need be so for cooling.

I am on a similar project with a 48 inch Stryker cat hull and a 26cc motor. I ain't got those scratch building skills nor my patience lasts that long. Lol.

Anyway, good luck and keep updating!

thanks buddy, I cannot afford another motor and battery, so I brought 1 brush cutter engine. 4 stroke 35cc. but that is taking all the space and the boat is looking ugly. i have not fitted yet.

Quote from: gaurang.1972 on August 10, 2018, 08:04:04 PM
hi you can use 4260 motor

I was looking for 4092 brushless motor + ESC + 6s battery setup. but dats gonna be too expensive . so decided to go for gas . lets see when I can install 1.

Lovely!
Open the hatch, place the engine in the engine bay and take a photo.
Eager to see!
(Is a bigger motor/esc/lipo much more expensive?)
Regards