My maritimo cat twin build

[sigelitest]

This is my first twin build so take it easy on me i started with some pics of the hull and my paint setup

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Pics are out of order but oh well. i like to paint my hulls first it keeps me motivated.

[sigelitest]

I am using these motors
FighterCat Racing 3730 T600 1600kv X2
plan on running 10s with 2 swordfish 200a ESC
haven't picked props yet
using .187 cable with squared ends for fighter cat stingers

IMG-20111116-00084.jpg

[sigelitest]

foaming in hull

sprayed the inside of the hull with wd40 so the foam doesn't expand to the hull all of the way and it won't stick to the hull

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Beefed up hull with a resin mix from US Composites it is very light weight

[sigelitest]

installing motor mounts and tubes
IMG-20111204-00118.jpg

[sigelitest]

Well I guess I messed up the motor mounts need to be on an angle and I put them in straight. I could not get the tube lined up with out using a tight S bend and there was Too much friction. Had to cut them out with a dremel tool

IMG-20111218-00131.jpg

this is the repair and better setup using a slight bend

[sigelitest]

added velcro and started mounting equip also mounted water outlets. holes drilled for water inlets but ran out of 3/16th tube.
so i am stuck till i reorder. guess my build is on hold till after christmas

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[LarrysDrifter]

Are you running 5s per motor? Why run square end flexes? You can take the stub shafts out and use regular flexes, which I think would be stronger.

[sigelitest]

yep running 5s per motor. i ran the square shafts so i don't loose props. i figured i would try it and see how it was. do u think it is too much friction?

[LarrysDrifter]

I can see the square end of the flex rounding off or the stub shafts doing the same. Ive never ran square drive anything, but in my opinion, in a high power set up, I can see it holding up. Doesnt mean it wont work for you though. I dont blame you for not wanting to lose props, but it happens once in a while. I havent lost one in a while, but I do pay closer attention to collet tightness and give the flexs a thorough inspection when I service them. I say crank her up on 6s and let it eat! Nice build. Been thinking about taking my Genesis out of the swap shop for a nice twin build using a couple hot Arc motors for mid to high 80 blasts. Good luck to you and post a video when your done.

[sigelitest]

i was a little worried about running squares but ben said it would work well. i will try anything like that once.
that hull should fly. a little scared of ending up in pieces but it is reinforced and i guess thats all i can do thanks for the coments larry

[bonewar]

Sigelitest,

You are going to love the way these Maritimo's run.
They are a very nice Cat to build especially with twins.

If you need any help with the set up, just ask mate
and i will be happy to help out.

Check out my profile, you will find lots of pictures of the Maritimo to look over.
I own 2 Maritimo's one twin and one (single ,still being built).
Good luck with your build.
I will be watching......

Bonewar

[sigelitest]

Sigelitest,

You are going to love the way these Maritimo's run.
They are a very nice Cat to build especially with twins.

If you need any help with the set up, just ask mate
and i will be happy to help out.

Check out my profile, you will find lots of pictures of the Maritimo to look over.
I own 2 Maritimo's one twin and one (single ,still being built).
Good luck with your build.
I will be watching......

Bonewar

This is my first twin so i can't wait to get it on the water
what do u think on props i will start with 5S.

thanks for the help

[bonewar]

My choice on props would be a

Pair of octura x442 , left ,right ,detounged , sharpen and balanced.

Second choice would be octura x646 detounged, sharpened and balanced.

Also you will need left and right flex cable for the job.

You mention square end flex, With the power you have i would go for the round end flex

I use the round end flex 3/16 for my twin and i have had no problems. Very strong...

I like what you did with the foam , How about a bulk head to finish it off.

The centre of gavitiy for this hull - A very good place to start is 37cm from the transom forward.

Also make sure you leave yourself lots of room for the lipo's to be moved forward or back to fine tune
your COG.

Here is a link to a very nice twin Maritimo built by Wolf , Check it out mate lots of good info there.
http://forums.offshoreelectrics.com/...Maritimo-build.
And here is my thread on the twin Simrad Maritimo.
http://forums.offshoreelectrics.com/...-cat&highlight=.


Bonewar

[Brushless55]

where do you get these hulls?
thanks

[jj2003]

where do you get these hulls?
thanks

Finedesign carries them
http://www.finedesignrc.com/hullshydromarine.asp

or

Straight from H&M

http://www.hydromarine.de