The table below gives an extract of the specification of all ASTER live steam locomotives from 1975-2016. The table is also available, with a complete history of ASTER locomotives, in my e-book The Unauthorised History of ASTER.
The columns of this table have the following explanation:
Year: The (approximate) year that the model became available. The release date of a locomotive is not exactly known; sources like pricelists and catalogues differ sometimes in the order that the locomotives became available.
Locomotive: Name given to the locomotive type in this book, sometimes divergent from the name ASTER used.
Size: W: Weight in kilograms, L: Length in centimetres
Wheels/Cyl: Wheel arrangement conform the Whyte notation and number of cylinders
Valve: Valve gear used as follows: All = Allan straight link; Bkr = Baker; Gre = Gresley conjugated; Osc = Oscillating cylinders; Slip = Slip eccentric; Step = Stephenson; Wal = Walschaerts; W/S = Walschaerts outside, Slip eccentric inside;
Boiler: Boiler type and boiler content in cc/ml.
Fuel: A = Alcohol; C = Coal; G = Gas.
Pump: A = Axle pump fitted; Ao = Axle pump Optional; At = Axle pump on tender; H = Hand pump fitted;
Radius: Minimum radius the locomotive needs for running; the ASTER specification is sometimes ambiguous, especially for the smaller locomotives.
Qnty: Total number of kits and RTR versions. The number of kits and RTR locomotives made for each type are not generally published. I tried to make a count by searching on the internet and using the numbers mentioned in the book Metal Model Trains.