After two and a half months,, “”” what we know “” hasn’t changed much from February 4th.
tsb-bst.gc.ca
The very qualified hierarchy of the TSB , should take a similar train, at same location before runaway ,,
configured the same as tragedy train,, apply emergency applications of brakes ,,then secure it
with hand brakes ((about forty a good “”guess””)) then release them. The guy releasing them,, if he is careful
could walk to the bottom of the hill to see if fellow TSB colleagues made it around the 20 MPH permanent
slow at the bottom of the hill.
Releasing the emergency application of air brakes on a train
on extreme grade,, is very dangerous because the
braking integrity of the train is compromised because it has
not had enough time to fully charge ,, before “”taking off”for the following
brake applications to follow ,,necessary to slow the train
for the 20 MPH permanent slow curve
at the bottom of the hill.
Not to mention the poor sap who is back there releasing
the 40 or more hand brakes applied because astronaut
Garneau said so.
Normally trains cresting any hill have a fully charged train line
for controlled brake applications down the hill.
Shutting power down on cresting the hill and using
full dynamic braking on decent delays use of the trains
braking system until necessary makes for extremely safe
decent of extreme grades.
Through movement of trains,, through extreme grade territory
must be mandated by rule and these trains should have
working dynamic brakes on all locomotives. |