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Haunch Beam Load for Lowbed Trailer

Haunch Beam Load for Lowbed Trailer

Haunch Beam Load for Lowbed Trailer

Here‘s an idea for a load that can be easily made, is realistic for almost any scene where there’s a road, and will draw attention because it‘s out of the ordinary. A haunch beam is often used in bridge where it bears on a pier. It is deeper than the other beams and can often present problems in transportation to the site.

The scenario in this vehicle is that the beam, manufactured at some distant fabrication factory was brought as near to the bridge construction site as the railroad could get it. At the siding it was loaded on this trailer for maybe a ten mile trip to where it will be lifted off and placed on the bridge pier. Since it was a short trip the choice of tractor didn’t make much difference, what ever the trucking company had available.

The beam was made from styrene, 0.015” thick sheet material for the web, 0.250” x 0.020” top flange, 0.250” x 0.030” bottom flange and 0.020” x 0.080” stiffeners. It is 50’-9” long.

The blocking is a combination of 12x12, 10x10, and 8x8 basswood (Northeastern Scale Models) that was dipped in diluted leather dye after it was cut to length but before it was glued. After assembly it was treated with dirty dullcoat.

Speaking of weathering, notice how the trailer bed has a dirty weathered look to it, the wood portion more than the steel. This was done by brushing on dullcoat and then while it is still wet using a knife to scraping chalk letting the dust fall on the wet dull lacquer. Put on more than you think you‘ll need, so the color of it looks dry and then brush it off by rubbing your finger in it when it’s completely dry.

The trailer (s/n 101516) is a scratch built typical 16 wheel drop center 60 ton that is heavier than needed but it was available. It makes a great choice for carrying this beam because it has a 22’ deck that is almost 11 feet wide so it makes for a stable platform for bracing the load that is about 14’ high which may have to be carefully driven down an unimproved temporary road to the site.

This trailer was made wide to carry the larger crawler cranes as well as rubber tired scrappers of the late 1940s. It has a rear loading ramp known to most truckers as a “beaver tail” Removable gooseneck trailers were rather new at this time and this trailer is lighter and could have been manufactured with very little equipment and not much for engineering drawings. It was also lighter weight and as was common at that time had smaller tires but more of them. This made for easy loading over the rear. The gooseneck was long enough for a tandem tractor but these wern’t as popular as they were ten years later.

The tractor (s/n 101518) has plow equipment so it can be used to clear roads in the winter after a ballast box has been connected to the fifth wheel. It sits on a 194” wheelbase and has 12.00-24 tires on disk “Budd” wheels

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