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Since Norton had supplied the test bike it seems reasonable that they would choose a good head for the test machine. The performance in the magazine test would certainly influence sales.Written sources often have errors or omissions. In some instances, as in the case of government war records, they can even contain encrypted or false information. After extracting the informatin then there is the problem of interpreting the data. It is sometimes difficult to get the facts.Model year and production year may be different. For example - 2012 Camaro production began in July 2011 so I expect a great many 2012 models were actually made in 2011. See http://www.camaro5.com/2012-camaro-production-beginsThere is no reason that a 1973 model Combat Interstate could not be produced during 1972. This all depends on when the factory started making the '73 models. It is entirely possible that no Combat engines were fitted to bikes during 1973 and yet there were bona fide 1973 models with factory Combat engines. None of this explains why the 1973 test Commando ran two tenths slower than the bike tested in 1970. There is something very wrong with that later test.
Since Norton had supplied the test bike it seems reasonable that they would choose a good head for the test machine. The performance in the magazine test would certainly influence sales.
Written sources often have errors or omissions. In some instances, as in the case of government war records, they can even contain encrypted or false information. After extracting the informatin then there is the problem of interpreting the data. It is sometimes difficult to get the facts.
Model year and production year may be different. For example - 2012 Camaro production began in July 2011 so I expect a great many 2012 models were actually made in 2011. See http://www.camaro5.com/2012-camaro-production-begins
There is no reason that a 1973 model Combat Interstate could not be produced during 1972. This all depends on when the factory started making the '73 models. It is entirely possible that no Combat engines were fitted to bikes during 1973 and yet there were bona fide 1973 models with factory Combat engines.
None of this explains why the 1973 test Commando ran two tenths slower than the bike tested in 1970. There is something very wrong with that later test.
