19-Set A-Set Aerial Base Assembly

[Chris Suslowicz]

Originally Posted by David Dunlop

I can see the problem with the use of plywood. Paint would not hold up to wear and tear very well and before long the plywood would be exposed to the elements. The animal glues of the day would not hold up and the next thing you know the Mounting would structurally fail.

Actually, there is no chance of a structural failure, since the plywood "mounting" is simply a spacer to accommodate the insulator on the "Plates, Connector, No.1" or "Aerial Feeder No.x" that adapts the feeder from the set (which varies according to installation) to the "pigtail" lead that connects to the aerial base No.8 (or No.10). It cannot fail due to delamination because it's sandwiched between the aerial base mounting flange and the vehicle body or bracket and there are six hex bolts (I think 1/4-in BSF) that pass through the whole assembly - the designer was obviously determined that it would not fall off in service!

Chris.