Hi all, I'm thinking of launching into a self-controlled Arduino
(ArduPilot or ArduRover) based boat project, but I'm coming at it from
an RC aircraft point of view, no RC boat experience.
Anyone on the list I could bounce a few questions off, or who might want
to be involved?
> Hi all, I'm thinking of launching into a self-controlled Arduino
> (ArduPilot or ArduRover) based boat project, but I'm coming at it from
> an RC aircraft point of view, no RC boat experience.
> Anyone on the list I could bounce a few questions off, or who might want
> to be involved?
> I might be interested, but I'm also involved with the FishPi project.
Cool, so just a couple of questions if I may, and I'll let you know if I
get things off the ground... no, wait... rolling.. err.. launched?
- are there any good shops in/near Vancouver for RC boat kits? Again, I
only know about RC aircraft, and the hobby store scene here seems a
pretty lacking
- is it possible to make any standard V hull reliably self-righting?
I've seen a few advertised as such, which use a water filling cavity to
turn themselves over again, but I would have thought that any single
hull would be self-righting if you put enough weight (e.g. heavy LIPO
battery pack) at the bottom of the hull?
- is it possible to make an RC hull fully watertight? I don't mean for
an hour, I mean for days or weeks at sea? Strikes me that there's always
got to be an exit point for the motor driveshaft, and possibly another
for the rudder pushrod, so how do you go about making these absolutely
watertight?
If you do not believe you can get a shaft feed through completely leak tight, then do not believe you can get a shaft feed through completely leak tight, and accept the problem as being present and to be accounted for.
To words: Bilge pump. No humans around? Two words: Bilge pumps.
For self-righting vessel example, see survival boats, rescue boats, and such. Local company, ISE, designed one that could be dropped from an airplane, if my memory serves me well. Check their website... I can't remember the tag, eheheh!
Central Park in Metrotown has two ponds where local hobbyists meet from time to time, you might want to look up the local clubs on the 'Net.
Long duration project involving closed compartments and change of temperature bring on the humidity factor, keep that in mind. Silica Gel is your friend, to a point.
Heavy LIPO battery pack... 'Might as well install torpedo tubes while you're at it... ;)
>________________________________ > From: Andrew Chapman <amchap...@gmail.com> >To: vhs-gene...@lists.hackspace.ca >Sent: Monday, November 19, 2012 11:00:58 PM >Subject: Re: any RC boat people on the list?
>On 2012-11-19 10:44 PM, Jimmy Chen wrote: >> I might be interested, but I'm also involved with the FishPi project.
>Cool, so just a couple of questions if I may, and I'll let you know if I >get things off the ground... no, wait... rolling.. err.. launched?
>- are there any good shops in/near Vancouver for RC boat kits? Again, I >only know about RC aircraft, and the hobby store scene here seems a >pretty lacking
>- is it possible to make any standard V hull reliably self-righting? >I've seen a few advertised as such, which use a water filling cavity to >turn themselves over again, but I would have thought that any single >hull would be self-righting if you put enough weight (e.g. heavy LIPO >battery pack) at the bottom of the hull?
>- is it possible to make an RC hull fully watertight? I don't mean for >an hour, I mean for days or weeks at sea? Strikes me that there's always >got to be an exit point for the motor driveshaft, and possibly another >for the rudder pushrod, so how do you go about making these absolutely >watertight?
You could also create some form of keel for the bottom of your boat which would make it not only "self righting" but also pretty impervious to flipping in general. You would not need to have a long keel like they have on sailboats, I would assume some form of lead beam along the bottom would be sufficient.
I don't know much about RC, but I know more than a little about boats (but am not in Vancouver so purely theoretical help). I am not sure what your project would be, but maybe another thing you could consider would be a catamaran design?
It would have to be sturdy, because while it seems like losing one pontoon would allow you to have 2 left to sail on, it's really not that simple. If you lose one, you are screwed. The advantage to it, would be more space for solar panels, more stability, and you could make it so even if it flips over... it would still operate something like: |o|
Just some musings. Thinking about it more, maybe at such a small scale a catamaran would be dumb.
Stephen Young wrote:
> If you do not believe you can get a shaft feed through completely leak
> tight, then do not believe you can get a
> shaft feed through completely leak tight, and accept the problem as
> being present and to be accounted for.
> To words: Bilge pump. No humans around? Two words: Bilge pumps.
> For self-righting vessel example, see survival boats, rescue boats,
> and such. Local company, ISE, designed one that could be dropped from
> an airplane, if my memory serves me well. Check their website... I
> can't remember the tag, eheheh!
> Central Park in Metrotown has two ponds where local hobbyists meet
> from time to time, you might want to look up the local clubs on the 'Net.
> Long duration project involving closed compartments and change of
> temperature bring on the humidity factor, keep that in mind. Silica
> Gel is your friend, to a point.
> Heavy LIPO battery pack... 'Might as well install torpedo tubes while
> you're at it... ;)
> My late night thoughts...
> SDY
> ------------------------------------------------------------------------
> *From:* Andrew Chapman <amchap...@gmail.com>
> *To:* vhs-gene...@lists.hackspace.ca
> *Sent:* Monday, November 19, 2012 11:00:58 PM
> *Subject:* Re: any RC boat people on the list?
> On 2012-11-19 10:44 PM, Jimmy Chen wrote:
> > I might be interested, but I'm also involved with the FishPi
> project.
> Cool, so just a couple of questions if I may, and I'll let you
> know if I
> get things off the ground... no, wait... rolling.. err.. launched?
> - are there any good shops in/near Vancouver for RC boat kits?
> Again, I
> only know about RC aircraft, and the hobby store scene here seems a
> pretty lacking
> - is it possible to make any standard V hull reliably self-righting?
> I've seen a few advertised as such, which use a water filling
> cavity to
> turn themselves over again, but I would have thought that any single
> hull would be self-righting if you put enough weight (e.g. heavy LIPO
> battery pack) at the bottom of the hull?
> - is it possible to make an RC hull fully watertight? I don't mean for
> an hour, I mean for days or weeks at sea? Strikes me that there's
> always
> got to be an exit point for the motor driveshaft, and possibly another
> for the rudder pushrod, so how do you go about making these absolutely
> watertight?
