RC India

RC Models => Boats => Topic started by: desachristopher on June 03, 2017, 07:12:12 AM



Title: My new 52" catamaran RC boat Diy
Post by: desachristopher on June 03, 2017, 07:12:12 AM
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..(https://uploads.tapatalk-cdn.com/20170603/39c4ab5f8a3dc1b4a1e4a3b6592adcba.jpg)(https://uploads.tapatalk-cdn.com/20170603/f19b4e4469cf7a5b8e49509e7720e1c8.jpg)(https://uploads.tapatalk-cdn.com/20170603/9d6ec1a01000247ba870d7921c76b17d.jpg)(https://uploads.tapatalk-cdn.com/20170603/f31e39b3c5b526a8a2af096ad13d0bcf.jpg)(https://uploads.tapatalk-cdn.com/20170603/e4578e1a757616109e5a7f76cfe819d4.jpg)(https://uploads.tapatalk-cdn.com/20170603/70767ad9fde6a36fa478d4fe4240e374.jpg)

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Title: Re: My new 52" catamaran RC boat Diy
Post by: sanjayrai55 on June 03, 2017, 11:34:46 AM
Great going Chris  :thumbsup:.  Subscribed


Title: Re: My new 52" catamaran RC boat Diy
Post by: saikat on June 03, 2017, 12:03:15 PM
very nice.

how did you cut ? by hand or power fretsaw

52" is huge .   will be impressive when finished


Title: Re:
Post by: desachristopher on June 03, 2017, 12:41:22 PM
I used jigsaw to cut the plywood

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Title: Re:
Post by: desachristopher on June 03, 2017, 12:43:00 PM
I have almost completed 90℅ of the hull.   Some more pics

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Title: Re: My new 52" catamaran RC boat Diy
Post by: desachristopher on June 03, 2017, 12:47:14 PM
More pic(https://uploads.tapatalk-cdn.com/20170603/86661b004bc26a994d6ae231abefc828.jpg)(https://uploads.tapatalk-cdn.com/20170603/5fd5736f76fd54659750b5228d86ac74.jpg)

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Title: Re: My new 52" catamaran RC boat Diy
Post by: desachristopher on June 03, 2017, 01:11:43 PM
No clamps. So I took anything I could. To put on some weight(https://uploads.tapatalk-cdn.com/20170603/bb44c5e1b30103f3b1496ca958c137e7.jpg)(https://uploads.tapatalk-cdn.com/20170603/5f7dba57eca2ae1a4b2fa90da820a984.jpg)(https://uploads.tapatalk-cdn.com/20170603/8c017b6e304cde6407dad317aebb574c.jpg)(https://uploads.tapatalk-cdn.com/20170603/e4662144d3073113e2a27b505d96b645.jpg)(https://uploads.tapatalk-cdn.com/20170603/451398b9cc740abce215d732c452608f.jpg)(https://uploads.tapatalk-cdn.com/20170603/ed1ef18909d594e6a9ab231ba2af41d1.jpg)

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Title: Re: My new 52" catamaran RC boat Diy
Post by: K K Iyer on June 03, 2017, 08:00:09 PM
@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


Title: Re: My new 52" catamaran RC boat Diy
Post by: desachristopher on June 04, 2017, 10:22:25 AM
Thankx


Title: Re: My new 52" catamaran RC boat Diy
Post by: desachristopher on June 04, 2017, 04:59:09 PM
Diy rudder(https://uploads.tapatalk-cdn.com/20170604/c5c76d6754e22da16f5504c84a3c28c9.jpg)(https://uploads.tapatalk-cdn.com/20170604/8089c6d5508ddbe99b223e23a02376cb.jpg)

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Title: Re: My new 52" catamaran RC boat Diy
Post by: Nanu on June 04, 2017, 05:32:03 PM
Looking really nice :)

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


Title: Re: My new 52" catamaran RC boat Diy
Post by: tictoc21 on June 04, 2017, 06:39:00 PM
👍


Title: Re: My new 52" catamaran RC boat Diy
Post by: Rooster on June 04, 2017, 09:00:20 PM
looking really good. subscribed
Shreekant


Title: Re: My new 52" catamaran RC boat Diy
Post by: desachristopher on June 16, 2017, 07:58:13 PM
Paint work started(https://uploads.tapatalk-cdn.com/20170616/4cb4ffd187359bffa2fe7ddd45988e64.jpg)

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Title: Re: My new 52" catamaran RC boat Diy
Post by: Shashank9230 on June 17, 2017, 05:00:57 PM
Amazing work


Title: Re: My new 52" catamaran RC boat Diy
Post by: miginstruments on June 17, 2017, 10:56:58 PM
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.....


Title: Re: My new 52" catamaran RC boat Diy
Post by: Nik on June 18, 2017, 01:17:38 PM
nice work buddy ... {:)}


Title: Re: My new 52" catamaran RC boat Diy
Post by: desachristopher on June 18, 2017, 08:12:59 PM
the grinding stone was Idle, so I made a good use of it. :) :)


Title: Re: My new 52" catamaran RC boat Diy
Post by: K K Iyer on June 18, 2017, 08:39:02 PM
@desachristopher,
Lovely primer preparation.
Look forward to outstanding finish!
Regards


Title: Re: My new 52" catamaran RC boat Diy
Post by: desachristopher on June 20, 2017, 07:32:35 PM
Mr. Iyer. tomorrow I'll be painting, hope it comes good.


Title: Re: My new 52" catamaran RC boat Diy
Post by: K K Iyer on June 20, 2017, 08:41:56 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...


Title: Re: My new 52" catamaran RC boat Diy
Post by: desachristopher on June 21, 2017, 02:51:32 PM
I have a brushless set ready, thinking of going for a petrol engine. like brush cutters. hope I get one in local market/shops


Title: Re: My new 52" catamaran RC boat Diy
Post by: desachristopher on June 22, 2017, 09:53:50 AM
Red n white(https://uploads.tapatalk-cdn.com/20170622/20a6729b2d1dc2f7d8cfb3e433171fe5.jpg)(https://uploads.tapatalk-cdn.com/20170622/6c2f40236f79d3d947a3bdea0f4e6912.jpg)

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Title: Re: My new 52" catamaran RC boat Diy
Post by: desachristopher on June 24, 2017, 06:34:53 AM
Hardware painted(https://uploads.tapatalk-cdn.com/20170624/3a5d073556470c30c4a39f7d64a2adbd.jpg)(https://uploads.tapatalk-cdn.com/20170624/95c06ae02918901caa3704b104eb9c88.jpg)

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Title: Re: My new 52" catamaran RC boat Diy
Post by: samayaraj on June 24, 2017, 09:12:58 AM
Nice built!  :hatsoff: Have you used epoxy fiber glass over the ply?


Title: Re:
Post by: desachristopher on June 25, 2017, 12:13:00 AM
Yes I sprayed epoxy resin only

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Title: Re: My new 52" catamaran RC boat Diy
Post by: desachristopher on June 28, 2017, 12:27:23 PM
Painting done. Let it dry for couple of days.then I'll start with hardware fittings n decals(https://uploads.tapatalk-cdn.com/20170628/b5e8626e83b9af310a6cbb90cfa38d0a.jpg)(https://uploads.tapatalk-cdn.com/20170628/c18e671a22022bd5f02242383f46a90f.jpg)

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Title: Re: My new 52" catamaran RC boat Diy
Post by: swapnilnimbalkar on June 28, 2017, 05:30:18 PM
"Kadak" that is what we say here in Mumbai/Thane.


Title: Re: My new 52" catamaran RC boat Diy
Post by: desachristopher on August 03, 2017, 01:59:10 PM
I did not get time to test this cat. Here are the final pics. Will upload d video soon(https://uploads.tapatalk-cdn.com/20170803/03a63ecfb907dfea3ac49c8719a54675.jpg)(https://uploads.tapatalk-cdn.com/20170803/1aae40322b6994629b8571818fee55db.jpg)

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Title: Re: My new 52" catamaran RC boat Diy
Post by: Priyanshu@ on August 03, 2017, 02:36:28 PM
Amazing work bro

This is going to burn the water



Title: Re: My new 52" catamaran RC boat Diy
Post by: sanjayrai55 on August 03, 2017, 07:27:09 PM
What a beauty Chris. All the best for the maiden


Title: Re: My new 52" catamaran RC boat Diy
Post by: Rooster on August 03, 2017, 08:00:15 PM
Amazing build...let the beast ROARRRRRRRRRRRR


Title: Re: My new 52" catamaran RC boat Diy
Post by: madaquif on August 03, 2017, 10:37:53 PM
WOOOW......this looks better than RTF model.......awesome bro.....just awesome ..... :hatsoff:

Please share the plans if you don't mind.


Title: Re: My new 52" catamaran RC boat Diy
Post by: desachristopher on August 10, 2017, 09:55:05 PM
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


Title: Re: My new 52" catamaran RC boat Diy
Post by: madaquif on August 11, 2017, 12:56:48 AM
thanks Christopher..


Title: Re: My new 52" catamaran RC boat Diy
Post by: ShantanuBorate on August 12, 2017, 10:52:05 AM
Very beautiful model... excellent finishing. Keep it up


Title: Re: My new 52" catamaran RC boat Diy
Post by: gaurang.1972 on August 13, 2017, 08:15:38 PM
Excellent build christopher


Title: Re: My new 52" catamaran RC boat Diy
Post by: Gajjark on August 19, 2017, 12:21:08 AM
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


Title: Re: My new 52" catamaran RC boat Diy
Post by: desachristopher on August 27, 2017, 07:16:55 AM
Thank you my friends.


Title: Re: My new 52" catamaran RC boat Diy
Post by: desachristopher on October 09, 2017, 09:54:28 PM
https://youtu.be/UA1CZPofqqo


Title: Re: My new 52" catamaran RC boat Diy
Post by: desachristopher on October 09, 2017, 09:57:30 PM
https://youtu.be/5Tx_XRwtCEU


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


Title: Re: My new 52" catamaran RC boat Diy
Post by: swapnilnimbalkar on October 09, 2017, 10:22:25 PM
Beautiful!

Its got enough speed, do you want more?


Title: Re: My new 52" catamaran RC boat Diy
Post by: madaquif on October 09, 2017, 10:30:29 PM
I liked it.....:D


Title: Re: My new 52" catamaran RC boat Diy
Post by: madaquif on October 10, 2017, 01:23:08 AM
what's the  electronic setup of this monster ?  ? ?


Title: Re:
Post by: desachristopher on October 10, 2017, 06:18:47 AM
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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Title: Re: My new 52" catamaran RC boat Diy
Post by: swapnilnimbalkar on October 10, 2017, 10:39:06 AM
Have you used waterproof ESC?


Title: Re: My new 52" catamaran RC boat Diy
Post by: desachristopher on October 10, 2017, 01:32:23 PM
Have you used waterproof ESC?
Have you used waterproof ESC?

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


Title: Re: My new 52" catamaran RC boat Diy
Post by: keston_b on August 07, 2018, 05:50:36 AM
hi where can i get a scale drawing like this


Title: Re: My new 52" catamaran RC boat Diy
Post by: ShantanuBorate on August 07, 2018, 09:03:14 AM
Beautiful... :hatsoff:


Title: Re: My new 52" catamaran RC boat Diy
Post by: sanjayrai55 on August 07, 2018, 09:20:31 AM
hi where can i get a scale drawing like this
Have you even read through the post? See Reply # 33


Title: Re: My new 52" catamaran RC boat Diy
Post by: 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 ainít got those scratch building skills nor my patience lasts that long. Lol.

Anyway, good luck and keep updating!


Title: Re: My new 52" catamaran RC boat Diy
Post by: girishsarwal on August 10, 2018, 10:21:22 AM
Brilliant... Lovely "Kattumaram"


Title: Re: My new 52" catamaran RC boat Diy
Post by: gaurang.1972 on August 10, 2018, 08:04:04 PM
hi you can use 4260 motor


Title: Re: My new 52" catamaran RC boat Diy
Post by: Mehul Anand on August 10, 2018, 08:49:38 PM
It's awesome!!!


Title: Re: My new 52" catamaran RC boat Diy
Post by: desachristopher on August 28, 2018, 11:43:03 PM
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 ainít 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.


Title: Re: My new 52" catamaran RC boat Diy
Post by: desachristopher on August 28, 2018, 11:50:43 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.


Title: Re: My new 52" catamaran RC boat Diy
Post by: K K Iyer on August 29, 2018, 12:43:48 AM
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