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Gen 1 Incident Recorder Design Parameters
•
Design Features
•
Design
Features
- Records nine engine and aircraft parameters.
- Records basic engine and aircraft information for approximately the
last 1 1/2 hours of engine operation
last
1
1/2
hours
of
engine
operation
.
- Begins recording when the start initiates.
- Stops recording after engine shutdown or 5 minutes after Weight on
Wheels
(
WOW
)
is true
(
On
g
round
)
.
() (g )
• Data is collected in “Buckets” to indicate parameter range
-
i e The N1 speed was between 75 and 80% maximum speed
i
.
e
.
The
N1
speed
was
between
75
and
80%
maximum
speed
.
- This allowed data to fit into available memory.
- Medium to High Fidelity data.
• Data Resolution
- Data is collected at increasing intervals from the end of the data
stream startin
g
at one second intervals.
35
File Number
g
- This allowed for the most recent data to have the highest fidelity
while maximizing the data stream available for download.