[NSRCA-discussion] ESC Motor Combo

[Patrick Harris]

I agree...It's set most likely to auto end points. Set it to fixed and it
should be fine.


On Wed, Jul 30, 2014 at 1:11 PM, Peter Vogel via NSRCA-discussion <
nsrca-discussion at lists.nsrca.org> wrote:

> Sounds like a Castle ESC in "Auto" endpoint mode.  The correct way to
> handle one of those is to arm at FULL throttle and then drop to zero
> throttle, that way the ESC knows the high + low end points.  If you arm at
> low then it "guesses" at the top end point in the first few seconds after
> it gets a signal above zero, hence a slow advance of the throttle confuses
> it.  (Castles are designed for sport fliers who think a takeoff is full
> throttle immediately).
>
> Personally, I *hate* the idea of arming a system at full throttle, so with
> a castle ESC (I think I'm down to 1 of those in my hangar at this point) I
> set up fixed end points right away.
>
> Peter+
>
>
> On Wed, Jul 30, 2014 at 1:03 PM, Scott McHarg via NSRCA-discussion <
> nsrca-discussion at lists.nsrca.org> wrote:
>
>> Hi guys,
>>
>> I need a little help.  My buddy has just recently bought a Mythos 125 and
>> has gotten frustrated with it.  The setup is the HACKER A60-7XS V2
>> <http://www.f3aunlimited.com/catalog/product/view/id/661/s/hacker-a60-7xs-v2/category/53/> and
>> a Castle HV85 ESC.  He recently went to this motor so that he could fly 8S
>> packs which he is currently running.
>>
>> Recently, he brought the plane over to the house and wanted me to have a
>> look.  Before I dive into it (which I haven't yet) by looking at the
>> logging on the ESC, etc., is there anything wrong with this combination?
>>  I've always flown Castle ESCs myself but I remember reading on here not
>> too long ago about how the Q80 and the Castle controller don't really get
>> along.  I mainly want to make sure that this doesn't apply to this
>> combination as well.
>>
>> I know there are a ton of variables and again, I haven't begun to dig
>> into it.  Essentially, if you start at idle and bring the throttle up
>> slowly as if you were in the air flying transitioning from a down line to
>> horizontal, the RPMs only increase slightly even to full throttle.  Two
>> takeoffs were aborted due to this.  If you jam the throttle from idle to
>> full throttle, the motor comes alive and performance is spectacular and it
>> will act fine with smooth transitions for a period of time if not the rest
>> of the flight.
>>
>> Just mainly making sure there are no specific hangups with this combo
>> that y'all can think of.
>>
>> Thanks,
>> Scott
>>
>>
>> *Scott A. McHarg*
>> VSCL / CANVASS U.A.V. Pilot Texas A&M University
>> PPL - ASEL
>>
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>>
>
>
>
> --
> Director, Fixed Wing Flight Training
> Santa Clara County Model Aircraft Skypark
>
>
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