What does the very last number(s) in the Maybach engine designation represent ?

eg the '45' in the HL 230 TRM P 45
or the '30' in the HL 230 TRM P 30

This page gives everything but : http://www.alanhamby.com/maybach.shtml

Thanks

Optimistic fishing Bump

Not 100 % sure, but since the P designates the engine as a "tank" engine, perhaps the 30 & 45 are the numbers corresponding to the version of the tank engine....ie, the 30th tank engine developed, and the 45th engine developed....

The P 30 was developed from the P 45 so chronologically it appears not .

The P 30 was a cast iron block over-bored to increase the combustion volume
What number would decrease in this event ?
Engine block coolant volume ?
Appears quite incongruent with the gain of 2 liters .

I'm convinced it refers to a specific mechanical characteristic of each engine and not just an administrative designation --

the P30 also had only two carburetors so maybe it refers to something in that side

There used to be a lot of fondness for attaching the design year to things but that certainly doesn't appear to be the case either.

Not a direct answer to your question, but just a thought -- maybe a Spielberger book can help

not the ones I have , heh heh

The best I can infer from Spielberger's Panther book is the numbers represent the tonnage ranges of the engine ??

The P 30 for panther & P 45 for Tigers .. ?
... he states the P 30 for the Panther produced 30 mteric HP per liter -- but 45 per liter = over 1000 HP ,, so ??

There seems to be very little difference in the two engines though , so I can't see how that tracks ...
( no where near enough for such a power output difference - mainly carburetor and intake manifold differences )

Very possibly just a design #