Sydney Freight Car 24s
  Noel Reed

Why is the motor suspension on a McGuire truck as on Sydney freight car 24s
different from that on a BRILL 22E truck as on Sydney F, L, LP and N trams
and most other trams with "Maximum Traction" trucks ?

Would the traction motor of a McGuire truck mounted outboard of the main
driving wheels reduce the axle loading on the pony wheels by comparison with
the Brill 22E truck which has the traction motor mounted inboard of the main
driving wheels ?

Would the pony wheels of a McGuire truck be less effective with braking or
more likely to derail on points or uneven track due to reduced axle loading

Noel Reed.