Hardware and Electronics for Micro Hulls

[Sneasle]

Hey guys.

I picked up a few BBY micro hulls a while back, and I'd like to finally get to building them:

2 Pariots
2 Micro Hydros
1 Scat cat
1 Shovel nose hydro

I've also got a small assortment of hardware that I've picked up on the cheap. It's all about the right size (I think) as it looks very similar to the OSE micro stuff so it should work fine. Two of those rudders looks a little on the large side (75mm), but they might work for the Cat or one of the Patriots?

I've also got two cheap outrunners. I bought these for the micro hydros as a part of a group build but I'm think I will use one for one of the hydros and one for one of the patriots.


That being said, I need some advise on the following:

1. How to reinforce the hulls. I've got a small stock of balsa and ply, along with a some nice lightweight cuts (.3oz - 5oz) of fiberglass. I don't have any CF on hand, but I can get some if it would work out better. I've got 'frames' for the micro hydros that someone here cut, but not for the shovel nose.

2. Will the hardware I have work? If not, what should I get. These are not race boats, just fun boats so cheap stuff is good. Right now I'm looking at the micro stuff from OSE and R2hobbies. I need to know everything I need (I'd be noob), collets, adapters, motor mounts, anything and everything.

3. What motors/esc would you recommend? Currently I'm looking at the 2040 and 35a esc from HK, but I'm open to other options. I'm actually considering making the cat a twin since I have two rudders..

4. I've got a stack of 3s and 2s 1320mah TP batteries. Can I use these for these boats? They are 15A cont 27A max.

5. If I post pictures of the interior of the hulls, can you give me an idea of where I should install what?


Pictures of the hardware below, please be very specific with me (ie part numbers, etc) as telling me to get the 1/8th collect from OSE may not point me in the right direction.

[Sneasle]

More pics

[Sneasle]

and more pics

[JMSCARD]

First of all the batts you have will only handle 19.8 amps contant... Very very little for boats... You may be able to run them in 3s2p format and be able to use them as that would give you 39.6 amp constant ... Still a little low for boats... Even micros... I would invest in some cheap 30c 2200's if you don't already have some as I know from rc groups you are a plane guy.... The outrunners you have may work... Can you post pics of the interior and exterior of the hulls? Also te mystery escs you have are not water cooled which I recommend... Turnigy makes some cheap 35 amp watercooled esc's.... Anyhow upload some hull pics and also if you know the strut/flexshaft size let us know that too....

[Sneasle]

I don't know the thread anymore, but several of these micro hydro's were built with those mysteries and they ran fine.

Edit: Found it!
http://forums.offshoreelectrics.com/...by+micro+hydro


I have 2200 3s, as well as 1500 3s.

Will post pics of the hulls shortly, but they are these: http://www.bbyracing.com/elecmicrohulls.asp

The shovel nose was a special thing that Randy made, only made a few and I was lucky enough to get one.

What sizes of the strut/shaft do you want to know? I'll take the caliper to them.

[Sneasle]

Double post.

[Sneasle]

Relevant threads that I know of:

http://forums.offshoreelectrics.com/...by+micro+hydro

http://forums.offshoreelectrics.com/...o+hydro&page=3

http://forums.offshoreelectrics.com/...by+micro+hydro

[Sneasle]

Shovel Nose

See attached pics

[Sneasle]

Micro Hydro

Pics with frame included. Designed by someone on the boards here.

[Sneasle]

Scat Cat

Pics attached.

[Sneasle]

Mini Patriot

Last but not least.

[befu]

You have lots of work ahead!

The mystery 2632-3000 is a nice motor. I have run one in my DF mini hydro which is about 16" long. I ran it on 2s and a 30mm prop I think. Only tried it out once, haven't put the eagle tree on it yet so no data, but it had plenty of torque to launch the boat. i want to run it on 3s and a 27mm prop next.

Batteries. Those batteries you list are small unless you run them in parallel, which you could do easily. Now, do not be afraid of trying it in a micro if you go with a lower power setup. i set up 1/10 scale crackerboxes with a 28mm mystery outrunner. They run in the 17 to 19 mph range and run right around 12 to 14 amps of power in a 20" flat bottom. some people were trying to tell me I needed at least a 60 amp esc for these things! i am sure you can put a 60 amp motor in them, but they work great with less.

Same thing with the 26mm mystery. You should only pull 25 amps on that motor anyways and I think you could get the small micros running in the 20 amp range. they will be fun, but might not be a rocket. Try it, you may be surprised.

If you search for threads started by me under boat building, you will see a couple on the Delta Force mini, my 1/16 scale shovel nose, a 24" mono, and the 1/10 cracker boxes. many of my boats run at 30 amps or less.

Look at the velocity series by minicat racing. There is also a thread on here about the 15" long mini cat. that and the mini mono are plenty fast and they tend to be low on the amperage also, sub 30 amp range so 2p would work great on those.

Hopefully over the next couple of weeks I will get some more data on the shovel nose and delta force mini with the 26mm outrunner. But those mystery's running 2p on those batteries are capable of getting those boats moving nicely.

Brian

[Alexgar]

where did you get the micro hydro

[Sneasle]

where did you get the micro hydro

BBY Racing, google them, find it under their micro electric section. The bare ABS hull is $30:

http://www.bbyracing.com/elecmicrohulls.asp

[Sneasle]

You have lots of work ahead!

The mystery 2632-3000 is a nice motor. I have run one in my DF mini hydro which is about 16" long. I ran it on 2s and a 30mm prop I think. Only tried it out once, haven't put the eagle tree on it yet so no data, but it had plenty of torque to launch the boat. i want to run it on 3s and a 27mm prop next.

Batteries. Those batteries you list are small unless you run them in parallel, which you could do easily. Now, do not be afraid of trying it in a micro if you go with a lower power setup. i set up 1/10 scale crackerboxes with a 28mm mystery outrunner. They run in the 17 to 19 mph range and run right around 12 to 14 amps of power in a 20" flat bottom. some people were trying to tell me I needed at least a 60 amp esc for these things! i am sure you can put a 60 amp motor in them, but they work great with less.

Same thing with the 26mm mystery. You should only pull 25 amps on that motor anyways and I think you could get the small micros running in the 20 amp range. they will be fun, but might not be a rocket. Try it, you may be surprised.

If you search for threads started by me under boat building, you will see a couple on the Delta Force mini, my 1/16 scale shovel nose, a 24" mono, and the 1/10 cracker boxes. many of my boats run at 30 amps or less.

Look at the velocity series by minicat racing. There is also a thread on here about the 15" long mini cat. that and the mini mono are plenty fast and they tend to be low on the amperage also, sub 30 amp range so 2p would work great on those.

Hopefully over the next couple of weeks I will get some more data on the shovel nose and delta force mini with the 26mm outrunner. But those mystery's running 2p on those batteries are capable of getting those boats moving nicely.

Brian

Yup, lots of work, but I am game.

I suggested the 1320's cause I have a lot of them and they are small, easy to parallel them in. I've got them in both 3s and 2s so I have options.

I'll give em a look see, not sure how much I'm gonna be able to get from them.


Edit:

Random question, I've heard mention of some sort of flood chamber that is used to self right? Am I hearing that right? Can something like that be installed on some of these small hulls?