<font color='black' size='3' face='Arial, Helvetica, sans-serif'><font class="Apple-style-span" size="3">Right. All 3 of the Nektons had 24 volt until Delta, when they doubled up to 48. Delta's hull is longer, too. I think it weighs 800-900# more than Gamma.</font>
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<div><font class="Apple-style-span" size="3">Vance<br>
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<div style="font-family: helvetica, arial; font-size: 10pt; color: black; ">-----Original Message-----<br>
From: hank pronk via Personal_Submersibles <personal_submersibles@psubs.org><br>
To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><br>
Sent: Fri, Aug 29, 2014 4:24 pm<br>
Subject: Re: [PSUBS-MAILIST] rpm<br>
<br>
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<pre style="font-size: 9pt;"><tt>Vance,
Yes for sure, Gamma has two separate amp gauges, one for the motor and one for
the rest of the sub. All 24v and the trolling motor is 12 v
Hank
--------------------------------------------
On Fri, 8/29/14, via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
wrote:
Subject: Re: [PSUBS-MAILIST] rpm
To: <a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>
Received: Friday, August 29, 2014, 4:03 PM
Yeah, too
simple. Maybe that's a good guess, but..... I will say
that an ammeter in the boat is a good thing. You can keep an
eye on things, and if it goes UP at some stage, you would
suspect a thruster issue (a tangle, or a bearing failure or
whatever). All it takes is an appropriate shunt and a gauge
(in my pre-digital steampunk mind). Okay, thanks anyway. I
was curious, that's all.
Vance
-----Original
Message-----
From: hank pronk via Personal_Submersibles
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
To: Personal Submersibles General Discussion
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
Sent: Fri, Aug 29, 2014 3:56 pm
Subject: Re: [PSUBS-MAILIST] rpm
Vance,
I did not do an amp draw test because I do not have the
technology in house. I
would guess with a 10% rpm drop, there may be a 10% amp
increase. That would be
to simple :-)
Hank
--------------------------------------------
On Fri, 8/29/14, via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
wrote:
Subject: Re: [PSUBS-MAILIST] rpm
To: <a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>
Received: Friday, August 29, 2014, 3:39 PM
Hank,
Did you check the amperage? I wonder if the
resistance causes a higher draw, and if so, how
much?
Vance
-----Original
Message-----
From: hank pronk via Personal_Submersibles
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
To: personal_submersibles
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
Sent: Fri, Aug 29, 2014 3:33 pm
Subject: [PSUBS-MAILIST] rpm
I am working on a hydraulic
pump that will be external and pressure compensated
in oil. I am using a trolling motor to drive the pump. A
while back there was
a question about rpm drop when a trolling motor is filled
with oil. I bench
tested that today, and the motor runs at 2,000rpm stock and
1,800 rpm full of
WD40.
Hank
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