From 206L-FMS1
WATER-ALCOHOL INJECTION PROCEDURE
NOTE
The available injection time is approximately
three (3) minutes, depending upon the flow
rate. When the tank quantity is depleted to
approximately one-half (l/2) gallon the W/A
LOW LEVEL (amber) light will illuminate.
WATER-ALCOHOL switch - ON.
Turbine outlet temperature (TOT) - Minimum 738°C.
W/A INJECT switch (collective stick ) - ON.
GREEN FLOW LIGHT - ON (Failure of light to illuminate
indicates no flow.)
Monitor TOT, N1, and torque instruments. Adjust power as
required to maintain engine operation within operating
limits.
When the W/A LOW LEVEL amber light
illuminates, the remaining fluid will provide
approximately 30 seconds of water-alcohol
injection time.
W/A LOW LEVEL amber light - When light illuminates,
schedule the use of the remaining fluid and be prepared to
reduce power to prevent exceeding the limit.
If water-alcohol is depleted during system
operation, a torsional oscillation will be
evident, reduce power as necessary to prevent
TOT from exceeding 810°C turn system off.
Prior to terminating water-alcohol injection flow, reduce
power and TOT.
W/A INJECT switch - OFF, adjust power and TOT as
required.
WATER-ALCOHOL switch - OFF.