Large Model Association Forum

Hi

just thought i would post a few pics and progress of a trailer that i purposely building for carting large scale aircraft around, building a box trailer

using an old camping trailer chassis 10 x 8,

Where are the pics then Richard? Please post pics?

Ian.

IAN

sorry but it was 11 35 pm when i posted

i will be taking an posting pics today

PHASE 1 - Boarding Out

What are you doing for insulation and damp proofing, anything? Models don't tend to fare too well stored in uninsulated trailers. Or is the trailer to be stored inside?

Ian.

As Ian. Also, have you undersealed the ply underneath? Also are you bolting the ply to the chassis? If not it will shake loose, coach bolts are the best. (ex caravan builder)

Bob Thompson1894 wrote:As Ian. Also, have you undersealed the ply underneath? Also are you bolting the ply to the chassis? If not it will shake loose, coach bolts are the best. (ex caravan builder)

at present it is temp screwed to the chassis, waiting on bolts, to be delivered, framing out first
then bolting together frame, then bolt frame to chassis, more pic to come, so we have quite a bit of rigidity,

i will post more photos

any advice welcome bob, especially from a caravan builder, hows your electrical wiring, i need help with this?

ian redshaw wrote:What are you doing for insulation and damp proofing, anything? Models don't tend to fare too well stored in uninsulated trailers. Or is the trailer to be stored inside?

Ian.

trailer will be stored outside, roof is 10mm, marine ply sealed with silicone or heavy duty glue and screws, then wrap with angle, aluminium, will be insulating with the silver bubble wrap stuff, (suggestions), side storage boxes and removable railing system for airframes of various sizes

eventually the whole trailer will be trimmed in ali angle 38mm to seal all edges, there be a small workbench with vice, lighting running off 12v, room to put a single cot up for overnighters

for now just get the basic done, one thing at a time

I dont know what is under the ply, usually it would be joists from 3x1 (vertical) bolted to the chassis, you could place heavy duty polythene over them, and push 50mm insulation (Kingspan or Poystyrene) in between. Then the ply on top. The polythene would protect the insulation and ply from the wet, and holds the insulation up. Then the ply is screwed at 100mm centres to the joists, and coach bolts to the chassis. As for electrics, the best thing is a trailer board from any car spares place.

Bob Thompson1894 wrote:I dont know what is under the ply, usually it would be joists from 3x1 (vertical) bolted to the chassis, you could place heavy duty polythene over them, and push 50mm insulation (Kingspan or Poystyrene) in between. Then the ply on top. The polythene would protect the insulation and ply from the wet, and holds the insulation up. Then the ply is screwed at 100mm centres to the joists, and coach bolts to the chassis. As for electrics, the best thing is a trailer board from any car spares place.

**** weather rain on me

thank u bob, i will take on board your advice,

ply is water proofed, on the underside, with several coats of water sealer, what i had in the workshop, i will eventually spray with the Gray stuff that u use on cars,

my plan is to build the frame grip fill screw and bolt it to chassis (overkill me thinks), cover outside in 6 mm ply outside screws and grip fill, (advice here), (found 6 in the workshop) (insulate, internal, then 6mm panel the inside with 6mm as well

using 38 mm timber for frame and building based on a caravan frame, very rigid structure, Google is a great teacher

as for the electrics , we will get to that later, i have to follow the law as the whole trailer is over 5m's long, i have to have 6 way lights, side lights, side indicators, side and front reflectors, trailer board may be OK in the short term, but if a jobs worth doing its worth doing properly, no corner cutting in my book.

on that note rain stopped. back to it laterz

Have any prospective trailer builders seen the rules and reg?

http://www.armitagetrailers.com/trailerlaw.htm

Thats pretty draconian, Alan. Richard- I would stop now.....

Isnt it just, ruddy eurocrap

Naah, the chassis is the trailer with overrun brakes etc, it's just got a payload well fastened to the top of it!

That Armitage website does contradict what it says on the Ifor Williams website here though...

http://www.iwt.co.uk/customer-care/faq-categories/towing-laws/1763

Richard- a much simpler and cheaper method would be to pick up a cheap caravan, £100-£200 and gut it. You could make the area under the back window into a drop down door and you then have all the room you will ever need. And its legal.

Bob Thompson1894 wrote:Richard- a much simpler and cheaper method would be to pick up a cheap caravan, £100-£200 and gut it. You could make the area under the back window into a drop down door and you then have all the room you will ever need. And its legal.

did think of that bob, an yea would have been cheaper, but then i could not build it the way i wanted, the smallest van would cost me £500, even that to good to rip apart

better to build than tear apart anyway, i like building new things bob,

did i forget telling you that this is an al-co trailer tent (Conway)Base glavanised, fully braked and legal, as rob said it the base that has to conform to regs what's bolted to the chassis may not matter, if i have not interpreted this right ROB let me know

Richard, that's just what I meant. As you're fashioning a category O2 trailer from here...

https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/277534/guide-to-the-iva-scheme.pdf

...You might have to have an IVA test carried out, unless you've not changed any of the things they inspect (on page 37/38). You kept the lights from the original trailer didn't you??

Rob Buckley wrote:Richard, that's just what I meant. As you're fashioning a category O2 trailer from here...

https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/277534/guide-to-the-iva-scheme.pdf

...You might have to have an IVA test carried out, unless you've not changed any of the things they inspect (on page 37/38). You kept the lights from the original trailer didn't you??

cam as frame only no lights,

hence why i took advice on the law and lights, as long it comply to the regs and is under 7m iva not needed, but what was said was that any trailer home made or commercial made must conform to certain lighting set ups, depending on length

Most IVA are for HGV commercial trailer over 7m, based on design and weight in short the IVA, is a MOT for a trailer that conforms to regs

as my trailer will be under 7m total length only the chassis and lighting count as i am following the lighting regs to the letter, i am covered.

on that not rain stopped play again no phots to show, every time i get my tools out, it rains cats and dogs, bring the weekend

new contract starts tomorrow, so til the week end on hold, just hope the weather improves

Read the document, IVA now applies to all trailers, no matter what size (unless you declare it agricultural and tow behind a tractor or similar).

Rob Buckley wrote:Read the document, IVA now applies to all trailers, no matter what size (unless you declare it agricultural and tow behind a tractor or similar).

not quite true. having read the document its trailers over 750kgs. so as long as the trailer is under that, its my understanding that it wont need a IVA