[Rhodes22-list] Speed monitoring

Mon Oct 11 19:59:06 EDT 2021

I can’t find it at the moment, but I once turned on Navionics at the start of a flight and recorded a top speed of over 400 knots!

Michael McKay
(630) 209-2054 (m)

Sent from my iPhone

> On Oct 11, 2021, at 4:05 PM, Jesse Shumaker <jesse.laten.shumaker at gmail.com> wrote:
> 
> The first screenshot from Navionics from a windy day sailing my R22 on
> Milford Lake in Kansas.  While we had some lively sailing, the max speed of
> 6.4 knots exceeds anything I recall seeing on the knot meter.
> 
> Similarly, on a windy last day of chartering an Island Packet 440 coming
> back across Bellingham Bay from San Juan Islands, a max speed of 15.9 knots
> was recorded.  The max speed on the knot meter was 7.4 and the SOG
> according to the GPS on the chart plotter was a little over 9, so there was
> some current pushing us but nothing crazy.
> 
> I made the mistake of opening Navionics while I was riding in a car so my
> max speed recorded is over 61 knots :)
> 
>> On Mon, Oct 11, 2021, 1:38 PM Mike Riter <mike at traildesign.com> wrote:
>> 
>> I haven’t noticed Navionics returning a higher speed than what would be
>> reasonable. Then again anytime I see a speed over 3 knots I’m elated. So if
>> the app is misleading me, then I’m ok with that. 😁
>> 
>> On Mon, Oct 11, 2021 at 2:16 PM Jesse Shumaker <
>> jesse.laten.shumaker at gmail.com> wrote:
>> 
>>> Hi Mike, I use Navionics as well.  I think it's a good value for the
>> amount
>>> of information.  It's nice to have a consistent navigation app to take
>> with
>>> when chartering, since chart plotters can vary widely, and it's also good
>>> to have multiple sources of information in addition to chart books /
>> paper
>>> charts.  To avoid draining my cell battery for a nav app, I primarily use
>>> the app on an iPod touch enclosed in a waterproof case that is bluetooth
>>> paired to a Bad Elf GPS, and then I attach the iPod to my forearm with a
>>> fitness arm band so it's always available and I don't have to worry about
>>> dropping it.
>>> 
>>> When I look back at a track over a day, I've noticed that my top speed on
>>> Navionics tends to be higher than seems practical (on my R22 as well as
>>> other boats).  Do you find this to be the case?
>>> 
>>> Jesse Shumaker
>>> S/V Zephyr
>>> 
>>> On Mon, Oct 11, 2021 at 10:37 AM Mike Riter <mike at traildesign.com>
>> wrote:
>>> 
>>>> I use the Navionics app on my iPad (and iPhone as backup). Since Garmin
>>> now
>>>> owns Navionics, you can also access active captain to find local
>>> services.
>>>> 
>>>> The iPad is attached to the starboard bulkhead handrail via a ram
>> mount
>>>> system with an adjustable arm so I can change the angle. Glare on the
>>>> screen is the biggest issue with using a tablet or phone for
>> navigation.
>>>> 
>>>> On Sun, Oct 10, 2021 at 3:01 PM Lee Kuhn <lvjkuhn at gmail.com> wrote:
>>>> 
>>>>> See attached.  Other similar options available.   Sits on galley or
>>>> cockpit
>>>>> seat without sliding, I think.
>>>>> 
>>>>> 
>>>>> On Sun, Oct 10, 2021, 2:49 PM Graham Parker <gramille at tds.net>
>> wrote:
>>>>> 
>>>>>> Thanks Lee and Chris,
>>>>>> I have downloaded Boatspeed for 99c and will give it a try
>> tomorrow!
>>>>>> Anyone found a good method for holding/ displaying your iPhone
>> while
>>>>>> sailing without it baking or ending up in the drink? I am thinking
>>> of a
>>>>>> kind of suction cup  phone holder to put on the bulkhead?
>>>>>> Graham Parker
>>>>>> sv.00Sailin
>>>>>> 
>>>>>>> On Oct 10, 2021, at 13:31, Chris Geankoplis <
>>>> chrisgeankoplis at gmail.com
>>>>>> 
>>>>>> wrote:
>>>>>>> 
>>>>>>> I have used "boatspeed" for the last 1,000 nm on Enosis this
>> summer
>>>> and
>>>>>> it
>>>>>>> works fine.  There is a bit of mental interpolation as you get a
>>>>> slightly
>>>>>>> different speed every couple of seconds.  But it has been spot on
>>> for
>>>>>>> planning and sail adjustments.
>>>>>>> Chris Geankoplis
>>>>>>> Enosis
>>>>>>> 
>>>>>>> On Sun, Oct 10, 2021 at 1:15 PM Lee Kuhn <lvjkuhn at gmail.com>
>>> wrote:
>>>>>>> 
>>>>>>>> See attached.   Best I found for an Android but I  think it
>> works
>>>> on a
>>>>>>>> iPhone too.
>>>>>>>> 
>>>>>>>> On Sun, Oct 10, 2021, 11:14 AM Graham Parker <gramille at tds.net>
>>>>> wrote:
>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>> Does anyone use their iPhone for monitoring sailing speed?
>>>>>>>>> 
>>>>>>>>>> Which app. works best and has anyone found a iPhone holder
>> that
>>>>> could
>>>>>>>>> attach easily near my compass on the bulkhead?
>>>>>>>>> 
>>>>>>>>> Graham
>>>>>>>>> sv.00Sailin
>>>>>>>>> 
>>>>>>>>> 
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>>>>> 
>>>> 
>>> 
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>>>>>> 
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>>>> 
>>> 
>> http://rhodes22.org/pipermail/rhodes22-list/attachments/20211010/83d11f44/attachment.jpg
>>>>>> 
>>>>> 
>>>> --
>>>> Michael Riter
>>>> President, Trail Design Specialists, Inc.
>>>> Lead Instructor, Trail Master and mechanized training
>>>> mike at traildesign.com
>>>> 678-410-8021
>>>> 
>>> 
>> --
>> Michael Riter
>> President, Trail Design Specialists, Inc.
>> Lead Instructor, Trail Master and mechanized training
>> mike at traildesign.com
>> 678-410-8021
>> 
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