Production and sales for civilian models continued into 1941 and perhaps even 1942.
However, for obvious reasons the process was disjointed.
The introduction of the Tiger models then resulted in an additional T prefix in front of the whole sequence.
Tiger 80s used a 3/2 single port engine basis (so T2. 2999 would be a 1936 Tiger 80) and Tiger 90s used a 5/5 twin port basis (so T5.
Each engine number is unique, that is to say one numbering sequence ran through all models.Those who dream by night in the dusty recesses of their minds wake in the day to find that it was vanity: but the dreamers of the day are dangerous men, for they may act their dreams with open eyes, to make it possible.That brings up an interesting question: When engine and frame numbers don't match, what do ya'll think is more important to appear on the title?The engine number is always preceded by the year and model code so an 8-5T prefix denotes a 1938 5T.Triumph used year codes in their engine numbers for sixteen years (with the exception of 19) up to 1951, and it’s important to understand that this code denotes the model year, not the calendar year.