TM 1-6625-724-13&P
0010 00
0010 00-9
UH60
8423934
FLOWN 09:29:00
1 AUG 01
Lag
MAIN
REL. TO MEAN
29
[mm]
120Kts
80Kts
145Kts
YEL
BLU
RED
TABLE
MEAN
FPG100
Hover
- +
- +
- +
UH60
8423934
FLOWN 09:29:00
1 AUG 01
Track
[mm]
REL. TO MEAN
TEST
YEL
BLU
RED
BLK
FPG100
-3.12
4.08
-4.88
3.93
Hover
-7.38
9.08
-5.70
4.03
80Kts
1.43
-4.92
-4.91
8.39
120Kts
6.64
0.44
-7.06
-0.03
145Kts
8.39
2.06
-11.6
1.18
Track
Figure 7. Complete Flight Track/Lag Display
i.
Using Polar Displays
There are two basic types of polar displays which display vibration amplitude and phase data. The first type
displays data collected during a single flight and provides a way of viewing all Test State data for a particular
channel. The second provides a trending capability allowing the viewing of amplitude and phase data
collected at one Test State, but with different flight IDs.
1. Complete Flight Polar Displays. The Complete Flight polar display, figure 8, allows the viewing of a single
channel's amplitude and phase data over every Test State in a selected Flight Plan. When the Complete
Flight polar display is selected from the Complete Flight display menu, an entry screen is displayed. This
entry screen allows the entry of the number of points to be displayed on the polar chart at a time. As more
points are selected, the display becomes more cluttered. The default is four points at a time and up to eight
points can be displayed at a time by placing the cursor on the "No of test:" line and entering the desired number
on the numeric keypad. Similarly the display of polar chart axes can be defeated by selecting the "Draw Axis "
line and using the RIGHT or LEFT arrow key to toggle to NO. Pressing DO will advance to the polar chart display
and pressing QUIT will return to the Display Selection Menu. Once the polar display is visible, the Flight Plan
vibration data is displayed in both tabular and polar format. The data displayed on the polar display is highlighted
in the table. To change the graphed data, use the UP and DOWN arrow keys. This will change the highlighted
data in the table and the points graphed. Press QUIT to return to the Display Selection Menu.
Entry Form
Enter the number of test to show on the
polar plot at one time.
No of test: 4 .
Draw Axis: YES
[UP] & [DOWN] Arrows :
[LEFT] & [RIGHT] Arrows
[DO] Save & Exit
UH60 8423934
A + B 1R
FLOWN 09:29:00 1 AUG 01
ID TEST
AMP
PHASE
[ips]
[deg]
A FPG100
0.51
57.48
B Hover
0.09
195.61
C 80Kts
0.18
294.98
D 120Kts
0.21
352.74
E 145Kts
0.08
5.78
A
C
B
Figure 8. Complete Flight Polar Display
2. Polar Trend Flights Display. The polar Trend Flights display, figure 9, allows the viewing of a single
channel's amplitude and phase data collected at different times using the same Flight Plan and aircraft tail
number. When the polar Trend Flights display is selected from the Trend Flights display menu, an entry
screen is displayed. This entry screen allows the entry of the number of points to be displayed on the polar
chart at a time. As more points are selected, the display becomes more cluttered. The default is four
points, and up to eight points can be displayed at a time by placing the cursor on the "No of test:" line and
entering the desired number on the numeric keypad. Similarly the display of polar chart axes can be
