6
7
the throttle slowly and wait until the locomotive responds. If
you prefer that your locomotive respond almost immediately
to throttle movements on your DC power pack, it may be
reprogrammed to use Standard Throttle Control (STC). Under
STC there is no Intrinsic Inertia. The Example on
page 15
of
this manual explains how to program your locomotive to use
STC.
Note:
If your locomotive has two sets of drivers, you will hear two sets
of steam chuff sounds that will go gradually in and out of synchrony.
•
As you slow the engine down by gradually reducing the throttle to a
little below V-start, the steam chuff labored sound volume decreases,
while Squealing Brake sounds occur as the steam locomotive comes
to a slow stop
6
.
If you need to turn your throttle up quite high to start your Steam Locomotive,
V-Start can be adjusted for operation with your particular DC power pack
(see Analog Programming
on page 15
). For recommended power packs,
consult the
Quantum Analog Reference Manual
(Version 3) available at
http://www.broadway-limited.com/
Doppler Effect
This effect changes the Whistle pitch and engine sounds as the locomotive
passes.
•
While the engine is moving toward the observer, flip the direction
switch to turn on the Whistle.
•
Wait at least one second while the Whistle is blowing.
•
Flip the direction switch back and forth quickly so the Whistle does
not shut off. You will hear the Whistle and other steam locomotive
engine sounds shift in pitch as the locomotive passes by.
•
Either flip the direction switch back to shut off the whistle, or continue
with long or short Whistle operations. When you are finished blowing
the whistle, the engine sounds will automatically return to normal
after a few seconds. If the Bell was on, it will shut off just before the
sounds return to normal.
Note:
The faster the engine is moving, the greater the Doppler shift.
Below 15 smph, there is no Doppler shift.