A couple of weeks ago the blog covered the 64 pattern Canadian respirator haversack here. Tonight we are looking at its immediate predecessor, the 51 pattern haversack:Technically this is not actually part of the 51 pattern web set, but it is closely associated with it as it was introduced at the same time as the rest of the webbing. The similarities between this and the later design are quite clear, with a similar side opening haversack, with a large press-stud secured pocket to the front:The big difference to note is the very different material the haversack is made from, rather than the plasticised finish of the later design, this haversack is a generation earlier and made from green canvas and cotton webbing. This would be far harder to decontaminate following a nuclear or chemical incident but reflects the available technology of the 1950s when it was produced, compared to that of a decade later. The haversack was worn on the left hip, with the opening facing forward. This is secured with a metal quick release buckle and a webbing chape:Note the little webbing channel for the tab to be stored away in when the haversack is fastened. When it is undone the haversack opens with a large gusseted opening to allow the mask to be taken in and out easily:Again like the later design, a small pocket is attached to the closed end of the haversack, with another quick release tab to open it with:The back of the haversack has a complicated array of different straps and fasteners attached to it:These are to allow the wearer to either attach it to the belt of his webbing set, or to sling it over his shoulder, a second strap then going around the wearer’s waist to prevent it from flapping about if the user needs to run.
For the early 1950s date this haversack is a modern and well thought out design. Its biggest flaw is not down to the design, but rather the materials available at the period which would have made it difficult to decontaminate.