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Trailer access calculation?



 
 
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  #11  
Old March 27th 20, 10:43 PM posted to rec.aviation.soaring
Matt Herron Jr.
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Posts: 517
Default Trailer access calculation?

On Wednesday, March 25, 2020 at 5:45:05 AM UTC-7, John McLaughlin wrote:
Thanks Martin. I think that after maybe another week or two of
lockdown, I'm going to be bored enough to make something around
my aluminium ladders using a couple of spare wheelbarrow wheels
and some scraps of timber. If I can get the ground clearance right,
as well as the total length, width, and wheel position, that should do
it. And it'll keep the neighbours amused.















At 11:35 25 March 2020, Martin Gregorie wrote:
On Wed, 25 Mar 2020 09:40:18 +0000, John McLaughlin wrote:

I want to bring my trailer home to do some maintenance while

we're all
grounded, but I'm not sure if I can access my house from the

road. I
have a 90deg bend to get around and then the second issue is a

short,
steep slope, which may ground the back of the trailer.

So my question is, if I measure things up, how can I calculate

whether
access is theoretically possible? Is there any advice on the

internet -
I can't find anything?

I don't want to just try the trailer for size because I fear getting

it
stuck.


You could always model it:

1) use a 25m tape measure +_ compass to draw an accurate map

of the track
on a decent sized sheep of paper, say A3 and use a sensible scale,

say
1:25 or 1:50 Draw in the track to its correct width and don't forget
obstacles, (hedges, poles, gateways, buildings etc.

Seeing that there's a steep slope involved, use some scrap foam

plastic
to make a scale 3D surface and glue the map to it I'd use a hiking

GPS or
Google Earth to measure the height difference unless you already

know
that.

OR (in order of decreasing accuracy)

Walk the track centre line with a GPS

OR

Take measurements off Google Earth

2) measure length + width of trailer + towbar and towing vehicle.

Make
cardboard cutouts of the plan view of trailer and car. Add a scale

towbar
to the trailer (lollypop stick would be fine) and add something to

the
trailer where the wheels should be. Rubber toy wheels would be

best, but
small blocks of wood or foam should also work. Connect car and

trailer
with a drawing pin or similar, placed where the tow ball is in the

car.

3) now you can move car+trailer models along the track and see

how close
the trailer comes to hitting anything.

At least, thats how I'd do it and, even if it takes time to do

properly,
its something else to do while in COVID lockdown. Making the

measurements
can reasonably be described as 'your daily walk'.

HTH


--
Martin | martin at
Gregorie | gregorie dot org



take videos for us! We are bored.
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  #12  
Old April 1st 20, 12:05 AM posted to rec.aviation.soaring
[email protected]
external usenet poster
 
Posts: 18
Default Trailer access calculation?

On Wednesday, March 25, 2020 at 2:45:04 AM UTC-7, John McLaughlin wrote:
I want to bring my trailer home to do some maintenance while we're all
grounded, but I'm not sure if I can access my house from the road. I
have a 90deg bend to get around and then the second issue is a short,
steep slope, which may ground the back of the trailer.

So my question is, if I measure things up, how can I calculate whether
access is theoretically possible? Is there any advice on the internet - I
can't find anything?

I don't want to just try the trailer for size because I fear getting it
stuck.


Does this help? https://www.memecenter.com/fun/5919021/this-pleases-me
  #13  
Old April 1st 20, 12:05 AM posted to rec.aviation.soaring
[email protected]
external usenet poster
 
Posts: 18
Default Trailer access calculation?

On Wednesday, March 25, 2020 at 2:45:04 AM UTC-7, John McLaughlin wrote:
I want to bring my trailer home to do some maintenance while we're all
grounded, but I'm not sure if I can access my house from the road. I
have a 90deg bend to get around and then the second issue is a short,
steep slope, which may ground the back of the trailer.

So my question is, if I measure things up, how can I calculate whether
access is theoretically possible? Is there any advice on the internet - I
can't find anything?

I don't want to just try the trailer for size because I fear getting it
stuck.


https://www.memecenter.com/fun/5919021/this-pleases-me
  #14  
Old April 1st 20, 09:11 PM posted to rec.aviation.soaring
2G
external usenet poster
 
Posts: 990
Default Trailer access calculation?

On Wednesday, March 25, 2020 at 2:45:04 AM UTC-7, John McLaughlin wrote:
I want to bring my trailer home to do some maintenance while we're all
grounded, but I'm not sure if I can access my house from the road. I
have a 90deg bend to get around and then the second issue is a short,
steep slope, which may ground the back of the trailer.

So my question is, if I measure things up, how can I calculate whether
access is theoretically possible? Is there any advice on the internet - I
can't find anything?

I don't want to just try the trailer for size because I fear getting it
stuck.


The rear-end of the trailer will definitely bottom out (that doesn't take much - I do it on my driveway which has just a slight slope). I added casters to the tail of the trailer just for this reason. The skids that Cobra provides don't work worth a damn. I actually damaged a stabilizer because of this. I made a plate out of 0.25 inch Al that holds the casters and bolts on to existed attachment points for my new ASH 31 Cobra trailer (no drilling thru the bottom like I did for my previous Cobra trailer). These casters have to be VERY robust; I went thru a succession of smaller casters until settling on 5 inch industrial-strength casters. As a stopgap you might consider getting a furniture dolly.

Another worry is if the slope is steep enough the wheels will be suspended as well, passing the load to the tongue and the trailer rear-end. Your vehicle had better be able to support this unusual weight if this happens.

I would also consider finding another location to do the work.

Tom
  #15  
Old April 3rd 20, 07:52 PM posted to rec.aviation.soaring
john firth
external usenet poster
 
Posts: 100
Default Trailer access calculation?

On Wednesday, March 25, 2020 at 5:45:04 AM UTC-4, John McLaughlin wrote:
I want to bring my trailer home to do some maintenance while we're all
grounded, but I'm not sure if I can access my house from the road. I
have a 90deg bend to get around and then the second issue is a short,
steep slope, which may ground the back of the trailer.

So my question is, if I measure things up, how can I calculate whether
access is theoretically possible? Is there any advice on the internet - I
can't find anything?

I don't want to just try the trailer for size because I fear getting it
stuck.


Assuming you are pulling with a car, unhitch the trailer and strap the hitch
to a furniture dolly;that should get you a foot of rear end clearance. pull the combination using the safety chain.
JMF
  #16  
Old April 5th 20, 02:59 AM posted to rec.aviation.soaring
2G
external usenet poster
 
Posts: 990
Default Trailer access calculation?

On Friday, April 3, 2020 at 11:53:00 AM UTC-7, john firth wrote:
On Wednesday, March 25, 2020 at 5:45:04 AM UTC-4, John McLaughlin wrote:
I want to bring my trailer home to do some maintenance while we're all
grounded, but I'm not sure if I can access my house from the road. I
have a 90deg bend to get around and then the second issue is a short,
steep slope, which may ground the back of the trailer.

So my question is, if I measure things up, how can I calculate whether
access is theoretically possible? Is there any advice on the internet - I
can't find anything?

I don't want to just try the trailer for size because I fear getting it
stuck.


Assuming you are pulling with a car, unhitch the trailer and strap the hitch
to a furniture dolly;that should get you a foot of rear end clearance. pull the combination using the safety chain.
JMF


WHOA! The guy may not have a parking brake on the trailer.
  #17  
Old April 5th 20, 03:50 AM posted to rec.aviation.soaring
[email protected]
external usenet poster
 
Posts: 658
Default Trailer access calculation?

WHOA! The guy may not have a parking brake on the trailer.

Well, he will discover that pretty quickly.

 




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