SubTech APC-4 functionality - Same as APC-3?

[bradv]

I'm building a module for the Trumpeter Kilo and due to having a fairly large battery pack & motor, am short on space ... not that there's much anyway. I was considering using a (channel-less) pitch controller for the rear vanes and controlling the front ones myself, but I just don't have enough room for the front mini-servo and linkage

I'm thus planning on emulating the system my Akula has - static (but pre-run adjustable) front vanes, with a pitch controller which also responds to manual input running the rear ones. In the previous case, I was using the APC-3. I'm now considering the APC-4 for my new project, but need to know the following: does input from the controller over-ride the APC-4's pitch-keeping function until the stick is centered, or instead does it not require/ignore any/all controller input? I'm not talking about the ability to turn it on/off like the APC-3 had with the optional grey&white wires; just that, when on, will it only pitch-keep when I'm not trying to submerge/surface the sub?

I'd appreciate comments anyone has on this. Thanks!

[tmsmalley]

I'm not an expert, but

I'm not an expert, but I do have a couple of both (APC 3s and 4s) and I like the 4 better because it is much smaller and you can mount it sideways, upside down, etc. Otherwise, seems to work the same. You can override it with stick controls too.

[raalst]

Hi Brad,

I have

Hi Brad,

I have no experience with the apc's but I am almost ready
with converting the kilo.

any pictures ?

as soon as the batteries of my digital cam are charged
I'll put up a few about my wtc.

[JWLaRue]

Tim,

Sideways?!? I didn't know that!

Tim,

Sideways?!? I didn't know that! (that's good to know)

-Jeff

[bradv]

Thanks Tim! The APC-4 looks

Thanks Tim! The APC-4 looks like the way to go for me then. The ability to override with the stick is essential, but being able to install in any orientation is a *real* bonus! Even more space savings

One final question though. Does the APC-4 come in a small box like the 3, or is it just the raw PCB like on the website?

I'm just about done gathering all the parts I need for the Kilo, so no photos so far, sorry. Once I'm done (and it works) I'll post some on my members homepage. I'm keen to see Raalst's WTC though!

[skip asay]

APC-4 comes wrapped in clear

APC-4 comes wrapped in clear heat shrink tubing. It will also do everything you want it to do (and probably more).

Skip Asay

[bradv]

Thanks Skip http://www.subcommittee.com/forum/icon_biggrin.gif The APC-3

Thanks Skip The APC-3 works great with my Akula, so I'm looking forward to ordering & receiving the -4. Sounds perfect for my little Kilo.

Not being in North America, I understand it'll be a while before orders are processed during SubTech's transitional period. Enjoy your retirement & thanks for all the help you've provided!