850mm (33.5") Carbon Fiber Mono Deep V Hull setup help

[tuncd]

Hi everyone,

I just wanted to do something different and I bought this hull.
I really need your advices about motor, shaft size, prop and motor position.
I would like to go with a LEOPARD motor, size 3674, 4060, 4074 or 4082. Which size and Kv would be the best?
ESC will be Turnigy 180A, I have 3 cells LIPOS just bought, because of this I would like to run on 6s.
Should I go with 3/16 (4.76) shaft? Do you think it is enough? Or should I go for 1/4 (6.35)?
I will be greatfull for your answers.
Thanks in advance to everyone.
Regardsc1.jpgc2.jpgc3.jpgc4.jpgc5.jpg

[rickwess]

I'll start. What you use is really dictated by your goals. To be safe, I'll be fairly conservative.

Motor: LP 4074 in the 1400-1500 KV range. My preference would be a TP 4050 @ 1470 KV.
Flex: 3/16 is fine.
Prop: Start smallish (m440) and work your way up while checking temperatures.

[kfxguy]

I prefer a tp motor myself. A 4050 would surely do it but 4060 would be my choice. That kv range would be perfect too. Agree also on the flex. An m445 would still be friendly enough to start on and get you on plane a little easier. I prefer the m series over the x because the hub is smaller and allows the water more room to travel through the prop. A seaking 180 would easily do the job. I'd recommend adding a cap bank to it. Using short as possible wiring. I also highly recommend disabling the built in bec on the seaking/turnigy 180 and using an external bec. The voltage bleed off of the built in bec results in higher esc temps and on 6s it's much more important. If you just run 4s then it will be fine as is. I'd try to use a y wind where you can because they are usually a touch friendlier to the esc. I'd put the motor about in the middle of the hatch opening with the batteries on the side. Like this: (this is a 34" mono)

[tuncd]

This boat is gorgeous! Is that setup original or did you buy thoose parts seperately?
What is the motor specs? Do you have any vid. on youtube?
I have many more questions to ask you but I dont want to make you bored :)

[tuncd]

Friends
One more question, should I put a carbon cloth on the surface inside the hull?

[kfxguy]

This boat is gorgeous! Is that setup original or did you buy thoose parts seperately?
What is the motor specs? Do you have any vid. on youtube?
I have many more questions to ask you but I dont want to make you bored :)

Thanks. I only have one video of this boat running because I was sent the wrong motor in error. I didn't know but it was a 2900kv motor I was running 6s on so I was not prepared for the power and I flipped it. I'm waiting on the replacement motor. I do have video of the exact same boat (I built both myself from a bare hull...chose components myself). Here's a speed run of it.

[kfxguy]

I always put a carbon inlay in my boats because it gives a little extra strength and it definitely looks better.

[zooma]

I always put a carbon inlay in my boats because it gives a little extra strength and it definitely looks better.

What brand of resin do you use for the layup? And, do you use something else to glue in the supports and trays?

[kfxguy]

What brand of resin do you use for the layup? And, do you use something else to glue in the supports and trays?

I use west systems for most everything. Jb weld on the motor mounts with a light coating of clear epoxy with black dye in it for a finished look. If I locate something I may want to remove later I use (believe it or not) 5 minute permatex two part epoxy. It's very strong but will let go when I need it to with no damage.

[zooma]

I use west systems for most everything. Jb weld on the motor mounts with a light coating of clear epoxy with black dye in it for a finished look. If I locate something I may want to remove later I use (believe it or not) 5 minute permatex two part epoxy. It's very strong but will let go when I need it to with no damage.

thanks

[tuncd]

I always put a carbon inlay in my boats because it gives a little extra strength and it definitely looks better.

Could you recommend carbon fiber inlay material from HK or Ebay, ( I am able to buy from theese sites because of shipping tems and costs to my country), or could you write the tec. specs. of the material I should buy? This is the first time I've building a boat, I always buy ARTR normally. Thank you for your time by the way.

[littlepooper206]

If you limited to the sites you can order from then check out this company on Ebay, they will have anything you will need to do carbon work. I get most of my stuff from them and the shipping / cummunication is great.

http://www.ebay.com/ulk/itm/111653009823

[tuncd]

If you limited to the sites you can order from then check out this company on Ebay, they will have anything you will need to do carbon work. I get most of my stuff from them and the shipping / cummunication is great.

http://www.ebay.com/ulk/itm/111653009823

thx little pooper, but there are many number I dont understand to be honest. what is "k" numbers? most important thing what should be the thickness?

[kfxguy]

The less oz it has the easier it is to fit into curves. The higher number is stronger however. I generally use 5.7oz

[tuncd]

The less oz it has the easier it is to fit into curves. The higher number is stronger however. I generally use 5.7oz

1-You apply the resin on the surface, you put the cloth on it to it's position, after all do you apply an other thin layer on the top the cloth?
2-should I install the motor, servo mounts before CF cloth, or can I install them on the cloth after it is cured?

thx for your help
regards