[Rhodes22-list] Fwd: Trailer

Peter Nyberg peter at sunnybeeches.com
Thu May 20 07:38:38 EDT 2021


Todd’s post with the trailer diagrams is here:
http://www.rhodes22.org/pipermail/rhodes22-list/2009-September/062414.html

Peter

Sent from my iPad

> On May 20, 2021, at 7:01 AM, Todd Tavares <tavares0947 at gmail.com> wrote:
> 
> There is a dimensioned drawing in the Archives. The axle position in the
> drawing was taken from several different Triad trailers which were the
> same. On some trailers the axle was a few inches forward.
> 
> Todd Tavares.
> 
>> On Wed, May 19, 2021, 11:16 PM Graham Stewart <gstewart8 at cogeco.ca> wrote:
>> 
>> Does anyone know what the "ideal" distance from the ball to the axle would
>> be on the RC trailer?
>> 
>> Graham Stewart
>> Agile, Rodes 22, 1976
>> Kingston Ontario
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> -----Original Message-----
>> From: Rhodes22-list [mailto:rhodes22-list-bounces at rhodes22.org] On Behalf
>> Of Todd Tavares
>> Sent: Wednesday, May 19, 2021 10:49 AM
>> To: The Rhodes 22 Email List
>> Subject: Re: [Rhodes22-list] Fwd: Trailer
>> 
>> If I remember correctly, there were different axle positions on single
>> axles over the years when measured from the center of the ball of the fully
>> retracted extension (or fixed winch tower. The axle (spring mounts) was
>> moved rearward more than a few inches. I remember this coming up in the
>> list discussions after I made the dimensions trailer drawing now in the
>> archives. Slim's axle may have been one that was too far forward....I
>> don't recall, but Slim may have been one of the guys who measured their
>> trailer for me. This measurement did differ from the trailer I bought from
>> Lloyd Crowther later on. Some other members went out and measured their
>> axle positions and I edited the drawing.
>> Adding a second axle may help with the fishtailing but at the same time
>> could be masking the original axle position problem and lead to lower than
>> possible tongue weights. Even when adding a second axle, the correct single
>> axle position (which sets tongue weight) is important because that becomes
>> the new center point for the double axles.
>> 
>> Todd T.
>> 
>> 
>>> On Wed, May 19, 2021, 9:52 AM ROGER PIHLAJA <roger_pihlaja at msn.com> wrote:
>>> 
>>> Graham,
>>> If the additional weight were so-called “sprung weight”, the issue you
>>> raise would be valid.  But, we’re talking about adding pieces/parts that
>>> are mostly unsprung weight, (i.e. not supported by the trailer’s
>> springs).
>>> The weight of the axles, most of the leaf springs, wheels, brakes, and
>>> tires is supported only by the tires.  Therefore, these pieces/parts do
>> not
>>> contribute to tongue weight.  In the case of Slim’s trailer, adding the
>>> second axle behind the original axle caused a fraction of the total load
>> to
>>> be taken up by the new axle.  In the case of tandem axles, you have
>>> calculate the position of an imaginary radius of pitch rotation, i.e. a
>>> point in space which defines the radius of the moment arm thru which the
>>> load is applied.  A rigorous calculation is quite involved; but, the
>>> approximate solution is midway between the two axles.  Since the radius
>>> moved aft, more of the load is carried forward of the radius, resulting
>> in
>>> more tongue weight.
>>> 
>>> Roger Pihlaja
>>> S/V Dynamic Equilibrium
>>> 
>>> Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for
>>> Windows 10
>>> 
>>> From: Graham Stewart<mailto:gstewart8 at cogeco.ca>
>>> Sent: Wednesday, May 19, 2021 9:33 AM
>>> To: 'The Rhodes 22 Email List'<mailto:rhodes22-list at rhodes22.org>
>>> Subject: Re: [Rhodes22-list] Fwd: Trailer
>>> 
>>> Roger:
>>> A technical question about adding an axel: I can see how moving the front
>>> axle forward so that the existing pivot point is midway between the axles
>>> would maintain the existing pivot point. However, you say that adding an
>>> axle to the trailer without moving the first axle would "move the pitch
>>> radius from the original center of the single axle back to ~ halfway
>>> between the centers of the tandem wheels". Is not adding the second axle
>>> and wheels also adding weight behind the pivot point thereby reducing the
>>> weight on the tongue? I am wondering how one would calculate where the
>> new
>>> pivot point is in this scenario.
>>> 
>>> Graham Stewart
>>> Agile, Rodes 22, 1976
>>> Kingston Ontario
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> -----Original Message-----
>>> From: Rhodes22-list [mailto:rhodes22-list-bounces at rhodes22.org] On
>> Behalf
>>> Of ROGER PIHLAJA
>>> Sent: Wednesday, May 19, 2021 8:26 AM
>>> To: The Rhodes 22 Email List
>>> Subject: Re: [Rhodes22-list] Fwd: Trailer
>>> 
>>> Slim,
>>> 
>>> So, your shop effectively moved the pitch radius from the original center
>>> of the single axle back to ~ halfway between the centers of the tandem
>>> wheels.  This will increase the tongue weight, fortunately in your case
>> not
>>> enough to be dangerous.  I bet if you were to measure the tire loading,
>> you
>>> would find your two front wheels are carrying considerable more load vs.
>>> the two back wheels.  Again, as long as you don’t exceed the tire load
>>> rating, this is not dangerous.  Have you noticed more tread wear on the
>>> front tires vs. the rear tires?  My four tires wear pretty evenly and I
>>> don’t rotate them or anything like that.  In fact, I tend to have to
>>> replace trailer tires most often due to cracking in the sidewalls due to
>>> oxygen and UV exposure after several years.  I have had a blowout and a
>>> steel wheel failure on my boat trailer in the 34 years I’ve owned it.  In
>>> both cases, I was extremely glad I had a tandem axle trailer!
>>> 
>>> Roger Pihlaja
>>> S/V Dynamic Equilibrium
>>> 
>>> Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for
>>> Windows 10
>>> 
>>> From: Steven Alm<mailto:stevenalm at gmail.com>
>>> Sent: Tuesday, May 18, 2021 7:37 PM
>>> To: The Rhodes 22 Email List<mailto:rhodes22-list at rhodes22.org>
>>> Subject: Re: [Rhodes22-list] Fwd: Trailer
>>> 
>>> When I added the second axle to my trailer I did not reposition the first
>>> axle. The second one was put on behind it. I did not do this work
>> myself. I
>>> checked with several  shops in my area until I found one who I felt would
>>> do it right. They also fabricated new fenders over the wheels — single
>> long
>>> fenders covering both wheels. I don’t know what the tongue weight is but
>> it
>>> weighs down the back of the vehicle about two inches, so at least a
>> couple
>>> hundred pounds, probably more. They added electric breaks to the front
>>> wheels and installed the controller up next to the steering column. In
>> the
>>> last 25 years  I’ve owned four different tow vehicles ranging from a 3/4
>>> ton Ford E250 to a 6 cylinder Toyota 4Runner. All towed it fine without
>> any
>>> issues.
>>> 
>>> Slim
>>> Fandango
>>> 
>>> 
>>> On Tue, May 18, 2021 at 4:33 PM Jesse Shumaker <
>>> jesse.laten.shumaker at gmail.com> wrote:
>>> 
>>>> I leave my Tohatsu 9.8 motor on the transom while trailering because it
>>> is
>>>> heavy.  However, I take my rudder off and put that in the v-berth since
>>>> that helps put more weight forward and takes stress off the transom.  I
>>>> help support my motor with 3 separate straps that hang off the stern
>>> rail.
>>>> 
>>>> My most recent process is to remove the tiller and connector to the
>> motor
>>>> so it's easy to handle the components rather than the whole assembly.
>> I
>>>> had a cover made for the rudder so it's easy to maneuver through the
>>> cabin
>>>> without scraping anything.  The cover is made such that I can put on
>> and
>>>> take it off while the rudder is mounted on the boat.
>>>> 
>>>> The ramp at the lake where I sail is quite gradual so it's easy to get
>>> the
>>>> boat far enough forward.  I'm still a novice when it comes to towing
>> but
>>>> haven't had any issues when towing around 60 MPH on my 2011 Triad
>> single
>>>> axle trailer.
>>>> 
>>>> Jesse Shumaker
>>>> S/V Zephyr
>>>> 
>>>> On Wed, Apr 28, 2021 at 8:10 PM THOMAS POLISE via Rhodes22-list <
>>>> rhodes22-list at rhodes22.org> wrote:
>>>> 
>>>>> I have very little weight on my hitch and inquired to Triad trailer
>>> with
>>>>> the response that I needed to remove motor.   Has anyone else had
>> this
>>>>> problem and resolved without having to take motor off?
>>>>> 
>>>>> 
>>>>> Begin forwarded message:
>>>>> 
>>>>>> From: Michael Orro <mike at triadtrailers.com>
>>>>>> Date: April 28, 2021 at 3:16:51 PM EDT
>>>>>> To: THOMAS POLISE <tvpolise at aol.com>
>>>>>> Subject: RE: Polise trailer
>>>>>> 
>>>>>> 
>>>>>> Hello Mr. Polise,
>>>>>> 
>>>>>> Thank you for this information and for the measurements.
>> According
>>> to
>>>>> the measurements, the trailer is built correctly.   I’ve attached a
>>>>> photograph of a Rhodes 22 sitting on her Triad Trailer.   The boats
>>>> appear
>>>>> to be loaded in the same spot.  It looks like you have a motor
>> hanging
>>>> off
>>>>> the back of the boat.  Do you?  If so, that motor needs to be loaded
>> in
>>>> the
>>>>> boat as far forward as possible.   Other than this, I’m not sure
>> what’s
>>>>> going on.  I’m surprised they can’t move the boat a bit more forward
>> on
>>>> the
>>>>> trailer.
>>>>>> 
>>>>>> Best wishes,
>>>>>> Mike Orro
>>>>>> Triad Trailers LLC
>>>>>> 5831 Triangle Drive
>>>>>> Raleigh NC 27617
>>>>>> Phone: 919.782.6007
>>>>>> Fax: 919.782.6009
>>>>>> email: Mike at TriadTrailers.com
>>>>>> Web:  www.TriadTrailers.com<http://www.TriadTrailers.com<
>>> http://www.TriadTrailers.com%3chttp:/www.TriadTrailers.com>>
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> From: THOMAS POLISE <tvpolise at aol.com>
>>>>>> Sent: Wednesday, April 28, 2021 12:13 PM
>>>>>> To: Michael Orro <mike at triadtrailers.com>
>>>>>> Subject: Polise trailer
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> 
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>> 


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