Hi Gregory
On (28 Aug 97) Gregory Procter wrote to Alec Cameron...
 -=> Quoting Alec Cameron to Gregory Procter <=-
 AC> engine with in- line cylinders. I *suppose* that a conventional two
 AC> cylinder steam loco would have total cylinder volume of roughly 3000
 AC> cubic ins.                                                      ^^^^
 GP>       20 inch x 24 inch = 7540 cu.in. x 4 = 30160 cu.in. total at 200 
pm
 GP> max.                                        ^^^^^
 GP>       would be an approximation for a medium size loco.
Agree. I never could handle decimal points. Preferred the vulgarity of
Fractions.
 GP>       There was a German loco with twin cylinders on each of 4 
indivdually
 GP>       driven axles in 1942, but the war got in the way.
 GP>       I think the design picked all the worst features: Individual axle
 GP> drive
 GP>       without individual control, 4 complex steam motors, 4 sets of
 GP> flexible
 GP>       gear drives, rigid frames.
Hoorah! And I always thought steam loco designers just copied each other, no
courage. VEE HAFF WAYSSSS TO MAKE YOU THINK!!
 AC> the local hill- and- dale deterioration, making the hills higher and
 AC> the dales lower, as each car set traversed the worn sections. Writer
 AC> said that this would tend to self- correct, if assorted train carsets
 AC> including loco hauled were instead used so that no one carset design
 AC> would predominate.
 GP>  A good reason for non-standardisation? ;-)
Viva la difference!
 GP>  Oscillations will create a ryhtmic pounding if all spring and damper
 GP> rates are
 GP>  the same. This could be countered by using slightly different spring
 GP> rates on
 GP>  the axles of a bogie. It is done in some automobiles to improve ride.
Rock and roll, versus Rock or Roll.
Rock on!
Cheers.....ALEC
... Me drive? I'll take the train as the good Lord intended!  ^oo   oo^oo   
oo^
--- PPoint 1.92
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