Note:
Always make sure all locomotives in a consist are set to the same Throttle Mode and have the same Load Values
12
. If the Gas Turbine is operating
under RTC in a consist, make sure that it is in Turbine Mode, since Diesel Mode has a limited top speed of 25 smph and will fight with other locomotives in
a consist at higher speeds.
Train Load
You can set your diesel locomotive to have any of 16 different Load levels, which represent added inertia from rolling stock (see Analog
Programming in next section). The higher the Load setting, the greater the inertia effect during acceleration and deceleration. As you increase
track voltage, the motor is provided an increasing portion of that voltage which, depending on the Load setting, will gradually accelerate the
locomotive realistically until it reaches full speed. Level 0 is the default, which is no Load.
Under STC, the level 0 Load setting will allow your locomotive to accelerate or stop as quickly as the internal flywheels will allow. For any Load
setting from 1-15, your Gas Turbine will automatically be under RTC and will take longer to change speed. At level 1, it will take approximately
15 seconds or more to achieve full speed at max throttle; at level 15, it will take over 3 ½ minutes to achieve full speed. In addition, at higher
Load settings, your engine will decelerate more slowly as you decrease your throttle.
Changing between Diesel and Gas Turbine Mode
Diesel Mode to Turbine Mode:
The Gas Turbine locomotive comes from the factory in Diesel Mode. Because of the limited power from the
diesel engine in the prototype, the model will be limited to 25 smph in Diesel Mode under RTC. To achieve full power from your model for
mainline operation, you will need to change to Turbine Mode. To change from Diesel Mode to Turbine Mode:
Press the horn button four times to produce four short horn hoots in Neutral.
The engine will go through a complex Turbine start up scenario as depicted in the graph below. At the start of the transition to Turbine Mode,
the Mars Light will change from Dim to Off. When the transition scenario is completed, the Mars light will change from Off to steady on.
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Recent Quantum locomotives use the term “Load” rather than Inertia or Momentum, which better describes the effect.
Gas Turbine Locomotive Q1R Operation Manual Version 3.0
6/26
14 March 2006
6.
Turbine
Ramps up to
700 rpm, 9
sec.
4.
Turbine Fires and Roar begins at
constant volume level following and
overlapping turbine fire. 7 sec.
5.
Turbine
Ramp Up
begins,
7 sec.
14.
Air
Compressors Turn
On, 37 sec.
7.
Diesel Motor
Ramps Up from
notch one w/ SOP,
14sec
13.
Diesel
Returned to
Idle. 36 sec.
12
. Diesel
Ramps Down to
Idle w/o SOP.
33 sec.
16.
Turbine Whine
at highest Idle
Speed. 41 sec.
1.
Air
compressors
and Dim Mars
Light shut off.
8.
Turbine Whine
follows
Diesel
ramp up, 15 sec.
10.
Diesel at full
RPM w/ SOP.
16 sec.
19.
Mar Light
Turn On to Dim.
48 sec.
15.
Diesel
Shuts Down,
42 sec.
18.
Turbine On the Line
(maximum Hiss volume
w/o SOP). 47 sec.
3.
Diesel Motor Ramps Up
from Idle to Notch one w/
SOP. 2 sec.
9.
Turbine Whoosh
volume ramps up,
17 sec.
11.
Turbine Hiss volume at
intermediate level until
turbine at full idle RMP.
25 sec
.
17.
Hiss
ramps up.
43 sec.
2.
Diesel
Ramp Up
begins, 1
sec
Turbine Start Up
Time
