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21 July 2008
Talk About: Birkin Blowers
One of the problems of having access to Motor and Autocar archives is that research can go on (or ever Take the Birkin Bentley in last month's issue; I mentioned that the bonnet had been used in the 1929 TT and that the underside of the tail still bore the scorch marks of a fire on an outer circuit car. Flipping through the 1929 Motor volume. I came across an article on the construction of that car. The reprinted photographs show how it was done. The frame is made up of spring steel strips; longitudinal strips are anchored to and let into wooden frames at each end and a mass of transverse strips are held on to the main longerons by bent-over H-shaped aluminium clips. This basic shape was then clad in fabric with the usual necessary padding between. Not only was the construction very light but it could be jumped on and would still return to its original shape.
One of the problems of having access to Motor and Autocar archives is that research can go on (or ever Take the Birkin Bentley in last month's issue; I mentioned that the bonnet had been used in the 1929 TT and that the underside of the tail still bore the scorch marks of a fire on an outer circuit car. Flipping through the 1929 Motor volume. I came across an article on the construction of that car. The reprinted photographs show how it was done. The frame is made up of spring steel strips; longitudinal strips are anchored to and let into wooden frames at each end and a mass of transverse strips are held on to the main longerons by bent-over H-shaped aluminium clips. This basic shape was then clad in fabric with the usual necessary padding between. Not only was the construction very light but it could be jumped on and would still return to its original shape. Continued...
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