rigger question

[jonu93]

I found ~20'' electric rigger plans and i want make it my self.
Can i use 3mm coated wood on the hull sides and hull bottom and side hull's 1,5mm coated wood. become's the rigger too heavy and works it.
What is the good nimh battery in this boat. 10cell = 12v ??

[Simon.O.]

If you can please attach the plans or an image of them, wood can be used for riggers as I have done quite a few of them in wood.
Ni cells are very out of date and you should consider LiPo, Ni can work but LiPo is FAR better. I of all should know as it took me a long time to convert.

Here to help

[jonu93]

Here. and use 80% size. i know lipo batterys but i don't like use them. are the 3mm and 1.5mm coated wood good for this boat.

is these motors good for this. what is the best choise?
(helicopter motors)

http://www.hobbyking.com/hobbyking/s...dProduct=11174
http://www.hobbyking.com/hobbyking/s...dProduct=11175
http://www.hobbyking.com/hobbyking/s...dProduct=11173


and this esc

http://www.hobbyking.com/hobbyking/s...idProduct=7339

[siberianhusky]

I did a small nitro predator, build a JAE free plans available and it is much better running hull, My Jae was faster it's first time out than the predator with a season of tuning on it.
The predator is an old school rigger, the new designs are quite different and IMO much better boats.
Did my JAE .12 out of 1/16 ply, with 1/8 bulkheads. Sponsons are skinned with 1/32 ply.
If you build the JAE according to plan it will run great right off the board, all mine needed was a bit of a turn fin adjustment to get it tracking perfectly straight, haven't changes a thing since except trying different props, and ended up back at the suggested prop!
A .12 would make a really nice 2s rigger.
Been running riggers since the late 80's out of all of them I'd say the JAE is the easiest to get running fast, nothing to adjust except turnfin and prop!
My next electric build will be a JAE 21 electric, with maybe a little clone 2s JAE 12 to keep it company.
LOL have to finish a big hydro and a new mono first!

[lectriglide]

Jonu - here are the plans for the Jae 21.

[jonu93]

ok. but i make that what i post first here

[Simon.O.]

For a first rigger the predator is fine, I have built two and then extensively modified one until it is now the basis for my mid-size rigger. It does not look a lot like the original predator.
If you are going to go with Ni cells instead of Lipo you will still get a lot of fun from it. Many of my early hulls were Ni powered and I learnt a lot before I jumped to LiPo.

All of my hulls have been made from sealed balsa with hardwood where needed and additional framing.

Go with what you have, and feel free to ask, as we are all here to help each other.

[jonu93]

ok. but works it if i build it a 3mm and 1.5mm coatedwood.


this http://hobbyking.com/hobbyking/store...idProduct=9021
or
this motor http://hobbyking.com/hobbyking/store...dProduct=11173

and this esc
http://www.hobbyking.com/hobbyking/s...dProduct=10013

and 10cell 3700mah nimh battery.

how many minutes can drive and how much is top speed (km/h)

[Simon.O.]

A little bit of help here.
Outrunner in a rigger this size is not common.
Brushless systems will kill Ni cells fast...that I know.
The predator is a dated design and there are far better hulls out there now.

You can build and run a Predator......it will be fun
You can run BL systems on Ni cells.....it will not be fun
For a rigger that size a 60A esc for your chosen setup is way too low.

You need to start with a clean sheet of paper and decide what you want and what you can afford.
To power a rigger the size you are looking at it is easy to grab inexpensive parts from HK and have a lot of fun.
I can tell you form extensive experience that BL motors and Ni cells are not nearly as much fun as LiPo cells.

Let us know what you want, and I am sure there will be many here who will help.
I will.

[jonu93]

i have rc car and there is 60A brushless system and 8,4v nimh and it's not dead.
what motor and esc you advise on this rigger.

[Simon.O.]

I would suggest you choose a proven modern design that has a good following like the JAE and then read up as much as you can on the hull.
I did this years ago with the predator but that is now an old hull.

[siberianhusky]

the amp draw in a boat is much higher that a car. Just because it works in a car means nothing to a boat, one is geared and runs on land, the other is direct drive on water.