RE:[Ausloco] Re: Smaller locos leading

[<gm49class@bigpond.com>]

Morning everyone,
                In reply to John's query, the regulations stated that the steam loco with the larger airpump and main reservoir must lead because only the lead engine's air pump operated when double heading.

You could only recharge the airline-  i.e. the air pump only operated when the brakes were released.

So as to recharge the airline and reservoirs on the carriages more quickly, the larger airpump was more efficient and recharged in less time.

As I indicated in my earlier posting,
on goods trains in NSW the smaller loco led the larger so as to keep the loco with the heavier duty drawgear on the train. 

Passenger engines fitted with screw couplings were also marshalled in the lead of a goods engine fitted with auto couplers on goods trains to save using a match truck.

Even when standard goods engines fitted with Commonwealth tenders and heavy drawgear and 59 class similarly fitted, the practice still persisted.
Garratts and 57s and 58s were marshalled on the train.

Hope this clears the matter up. Practices in other states varied with NSW.

Via my pocketmail,

Regards,
Peter Booth

For those who love to email,
I may be contacted on either:
gm49class@bigpond.com or
gm49class@pocketmail.com.au



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