DRAG PPC April 07

1
UH-60 Performance Planning (Alternative or Sling
Load) 1-212 Aviation Regiment
Fort Rucker, Alabama 36362 Version
date April 2007
2
Terminal Learning objective (TLO) At the
completion of this lesson the student
will Action Complete an H-60 Performance
Planning Card, Alternative or Sling Load
Configuration, DA FORM 5701-60-R. Condition As a
UH-60 aviator. Standard In accordance with TC
1-237, TM 1-1520-237-10. Safety Requirements
None. Environmental Considerations None.
3
TYPES OF DRAG
PROFILE DRAG IS FRICTIONAL RESISTANCE OF THE
BLADES PASSING THROUGH THE AIR
PARASITE (FLAT PLATE) DRAG CREATED BY NON LIFTING
PORTIONS OF THE AIRCRAFT
TOTAL DRAG
INDUCED DRAG CREATED THRU THE PRODUCTION OF LIFT
DRAG
FORWARD SPEED
4
PLANNING REQUIREMENTS
5
PLANNING REQUIREMENTS
6

DEPARTURE SECTION
VALUES OBTAINED FROM LOGBOOK, WEATHER BRIEFING
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
DEPARTURE BLOCKS THAT DIFFER FROM "TYPICAL" PPC
7

TORQUE RATIO
COMPUTED AS PER CLEAN CONFIGURATION IAW TC 1-237
.967
1.0
.984
8

DEPARTURE SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
9

MAX TORQUE AVAILABLE
COMPUTED AS PER CLEAN CONFIGURATION IAW TC 1-237
110 106 216 / 2 108 (DE) MTA
110
110 X .967 106
10

DEPARTURE SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
11
MAX ALLOWABLE GWT
5 MOVE UP TO WHEEL HEIGHT WITH LOAD AT 10 FEET
THEN RIGHT TO TEMP /PA LINE AND READ GWT (IGE)
1 ESTABLISH TEMP PA LINE
2 ENTER CHART AT MAX TRQ AVAIL OR XMSN LIMIT (OGE)
21500 IGE
21000 OGE
3 MOVE RIGHT TO TEMP PA LINE AND READ GWT (OGE)
4 ENTER CHART AT MAX TRQ AVAIL OR XMSN LIMIT (IGE)
12

DEPARTURE SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
13
GO/NO GO OGE/IGE
1 ESTABLISH TEMP PA LINE
3 MOVE LEFT TO HOVER HEIGHT THEN DOWN TO GO/NO GO
TRQ (OGE)
NOTE HOVER HEIGHT IS HEIGHT OF AIRCRAFT WITH
LOAD AT APPROX. 10 FEET
4 ENTER CHART AT MAX GWT IGE
2 ENTER CHART AT MAX GWT OGE
5 MOVE LEFT TO HOVER HEIGHT THEN DOWN TO GO/NO GO
TRQ (IGE)
97 OGE
100 IGE
14

DEPARTURE SECTION
IF AIRCRAFT GWT IS LESS THAN MAX ALLOW GWT OGE
PLACE OGE IN BLOCK
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
TC 1-237 PG. 4-2
15
PREDICTED HOVER
1 ESTABLISH TEMP PA LINE
3 MOVE LEFT TO HOVER HEIGHT THEN DOWN TO HOVER TRQ
2 ENTER CHART AT AIRCRAFT GWT
90
16

DEPARTURE SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
DOUBLE DUAL ENGINE TORQUE FOR SINGLE ENGINE
21000 21500
97 100
OGE
90 180 180
17
MIN SE AIRSPEED
2 MOVE UP TO ACFT GWT WITH AND WITHOUT SLING LOAD
3 MOVE R/L TO IAS
48 KTS WITH LOAD
1 ENTER CHART AT LOW ETF (SE)30 MIN ENGINE
20 KTS WITHOUT LOAD
.96
18

DEPARTURE SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
90 180 180
20 48
19

REMARKS SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
90 180 180
20 48
LOAD ALQ 144 M130 CHAFF DISP 4X4 CUBE SHAPED
LOAD
OBTAIN AND ENTER DRAG MULTIPLYING FACTORS AND
FLAT PLATE DRAG HERE
20
REMARKS SECTION
PAGE 7-147
21

REMARKS SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
90 180 180
20 48
?F DMF ALQ-144 0.8 .08 M130 0.3
.03
22
REMARKS SECTION
PAGE 7-148
15
1 ENTER CHART AT LOAD SHAPE
4 MOVE UP TO READ FLAT PLATE DRAG
FRONTAL AREA SQUARE FOOT LINES
2 MOVE RIGHT TO LOAD SQ. FT. LINE (4X416 SQUARE
FEET)
3 MOVE DOWN TO READ DRAG MULTIPLYING FACTOR (DMF)
1.5
23

REMARKS SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
90 180 180
20 48
?F DMF ALQ-144 0.8 .08 M130 0.3
.03
LOAD 15.0
1.50 TOTAL 16.1 1.61
24

CRUISE SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
90 180 180
20 48
?F DMF ALQ-144 0.8 .08 M130 0.3
.03
LOAD 15.0
1.50 TOTAL 16.1 1.61
VALUES OBTAINED FROM WEATHER BRIEFING
CRUISE SECTION BLOCKS REQUIRED TO BE COMPUTED
0 20
25
MAX TORQUE AVAILABLE
COMPUTED AS PER CLEAN CONFIGURATION IAW TC 1-237
PLANNED CRUISE IAS
102 KTS TAS
100 KTS IAS
.98
111
26

CRUISE SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
90 180 180
20 48
?F DMF ALQ-144 0.8 .08 M130 0.3
.03
LOAD 15.0
1.50 TOTAL 16.1 1.61
0 20
111
100 102
27
MIN/MAX IAS
17
4 MOVE UP TO ? TRQ
5 MULTIPLY ? TRQ (17) BY DMF (1.61)
134 KTS
17x1.6127
8 MOVE R/L TO NEW VH IAS
6 SUBTRACT RESULT FROM MAX TRQ AVAIL OR XMSN
LIMIT
2 MOVE UP TO (ABEAM) ACFT GWT THEN R/L TO MIN SE
IAS
3 CONT UP TO ACFT GWT THEN LEFT TO ? TRQ LINE
100-2773
7 RE-ENTER CHART AT RESULT (73) THEN MOVE UP
(FOLLOW SLANT) TO ACFT GWT
1 ENTER CHART AT ATF OR XMSN LIMIT
.98
0
28

CRUISE SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
90 180 180
20 48
?F DMF ALQ-144 0.8 .08 M130 0.3
.03
LOAD 15.0
1.50 TOTAL 16.1 1.61
0 20
111
0 134
100 102
29
CRUISE TORQUE
4
3 CONTINUE LEFT TO ? TRQ LINE THEN UP TO ? TRQ
1 ENTER CHART AT CRUISE IAS
4 MULTIPLY ? TRQ (4) BY DMF (1.61) THEN ADD TO
CLEAN (NOTED) CRUISE TORQUE
2 MOVE LEFT TO ACFT GWT THEN DOWN TO NOTE CRUISE
TORQUE
4X1.616 52658 TRQ
52
30

CRUISE SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
90 180 180
20 48
?F DMF ALQ-144 0.8 .08 M130 0.3
.03
LOAD 15.0
1.50 TOTAL 16.1 1.61
0 20
111
0 134
100 102
58
31
CONT TRQ FUEL FLOW
930
COMPUTED AS PER CLEAN CONFIGURATION IAW TC 1-237
88
CRUISE IAS
.96
CRUISE TORQUE 58
32

CRUISE SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
90 180 180
20 48
?F DMF ALQ-144 0.8 .08 M130 0.3
.03
LOAD 15.0
1.50 TOTAL 16.1 1.61
0 20
111
0 134
100 102
58
88
930
33
MAX RANGE IAS
4 MULTIPLY FLAT PLATE DRAG (16.1) BY .6 THEN
SUBTRACT RESULT FROM COMPUTED MAX RANGE IAS
134 KTS
3 MOVE R/L TO MAX RANGE IAS
16.1x.610 134-10124
1 ENTER CHART ON MAX RANGE LINE AT AIRCRAFT GWT
2 MOVE DOWN TO MAX RANGE TORQUE
75
34

CRUISE SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
90 180 180
20 48
?F DMF ALQ-144 0.8 .08 M130 0.3
.03
LOAD 15.0
1.50 TOTAL 16.1 1.61
0 20
111
0 134
100 102
58
88
930
124 75
35
MAX ENDURANCE-IAS/TORQUE
COMPUTED AS PER CLEAN CONFIGURATION IAW TC 1-237
75 KTS
47
36

CRUISE SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
90 180 180
20 48
?F DMF ALQ-144 0.8 .08 M130 0.3
.03
LOAD 15.0
1.50 TOTAL 16.1 1.61
0 20
111
0 134
100 102
58
88
930
124 75
75 47
37
CRITICAL TORQUE
COMPUTED AS PER CLEAN CONFIGURATION IAW TC 1-237
CRUISE IAS
.96
53
38

CRUISE SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
90 180 180
20 48
?F DMF ALQ-144 0.8 .08 M130 0.3
.03
LOAD 15.0
1.50 TOTAL 16.1 1.61
0 20
111
0 134
100 102
58
88
930
124 75
75 47
53
39
MAX ALLOW GWT/OPTIMUM IAS
2
4 MULTIPLY ? TRQ (2) BY DMF (1.61) THEN SUBTRACT
RESULT FROM MAX TRQ AVAIL OR XMSN LIMIT
6 DETERMINE MAX ALLOWABLE GWT THEN MOVE RIGHT TO
IAS
3 MOVE LEFT TO ? TRQ LINE THEN UP TO ? TRQ
2X1.613 100-397 TRQ
22000
77
2 MOVE UP TO (ABEAM) MAX END AND R/C LINE
5 RE-ENTER CHART AT NEW TORQUE MOVE UP (FOLLOW
SLANT) TO MAX END AND R/C LINE
1 ENTER CHART AT ATF OR XMSN LIMIT
40

CRUISE SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
90 180 180
20 48
?F DMF ALQ-144 0.8 .08 M130 0.3
.03
LOAD 15.0
1.50 TOTAL 16.1 1.61
0 20
111
0 134
100 102
58
88
930
124 75
75 47
53
22000
77
41
MAX R/C IAS/TORQUE
12 KTS
75 12 87 KTS
100 TRQ
1860 FPM
COMPUTED AS PER CLEAN CONFIGURATION IAW TC 1-237
20000 LBS
.98
OR XMSN LIMIT
100
100 47 53
42

CRUISE SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
90 180 180
20 48
?F DMF ALQ-144 0.8 .08 M130 0.3
.03
LOAD 15.0
1.50 TOTAL 16.1 1.61
0 20
111
0 134
100 102
58
88
930
124 75
75 47
53
22000
77
87 100
43

MAX ALT-MSL MAX END-IAS
COMPUTED AS PER CLEAN CONFIGURATION IAW TC 1-237
20000 LBS
54 KTS
.98
44

CRUISE SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
90 180 180
20 48
?F DMF ALQ-144 0.8 .08 M130 0.3
.03
LOAD 15.0
1.50 TOTAL 16.1 1.61
0 20
111
0 134
100 102
58
88
930
124 75
75 47
53
22000
77
87 100
14000 57
45
MAX TORQUE AVAILABLE(SE)
COMPUTED AS PER CLEAN CONFIGURATION IAW TC 1-237
PLANNED (SE) CRUISE IAS
84 KTS TAS
80 KTS IAS
1.0
.96
112
108
46

CRUISE SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
90 180 180
20 48
?F DMF ALQ-144 0.8 .08 M130 0.3
.03
LOAD 15.0
1.50 TOTAL 16.1 1.61
0 20
111
112 108
0 134
100 102
80 84
58
88
930
124 75
75 47
53
22000
77
87 100
14000 57
47
MIN/MAX SE IAS
4
4 MOVE UP TO ? TRQ
7 MOVE R/L TO MAX SE IAS
5 MULTIPLY ? TRQ (4) BY DMF (1.61) THEN SUBTRACT
½ FROM SE30 MIN LINE TRQ (53)
3 CONTINUE UP TO ACFT GWT THEN LEFT TO ? TRQ LINE
94 KTS
4x1.616 6/23 53-350
2 MOVE UP TO ACFT GWT THEN R/L TO MIN SE IAS
6 RE-ENTER CHART AT NEW TORQUE AND FOLLOW SLANT
UP TO AIRCRAFT GWT
47 KTS
1 ENTER CHART AT LOW ETF
.96
48

CRUISE SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
90 180 180
20 48
?F DMF ALQ-144 0.8 .08 M130 0.3
.03
LOAD 15.0
1.50 TOTAL 16.1 1.61
0 20
111 112 108
0 134
47 94
100 102 80 84
58
88
930
124 75
75 47
53
22000
77
87 100
14000 57
49
SE CRUISE TORQUE
2
3 CONTINUE LEFT TO ? TRQ LINE THEN UP TO ? TRQ
2 MOVE LEFT TO ACFT GWT THEN DOWN TO NOTE CRUISE
TORQUE AND DOUBLE
4 MULTIPLY ? TRQ (2) BY DMF (1.61) THEN DOUBLE
AND ADD TO NOTED CLEAN SE TRQ
1 ENTER CHART AT SE CRUISE AIRSPEED
2X1.613x26 966102
48x296
50

CRUISE SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
90 180 180
20 48
?F DMF ALQ-144 0.8 .08 M130 0.3
.03
LOAD 15.0
1.50 TOTAL 16.1 1.61
0 20
111 112 108
0 134
47 94
100 102 80 84
58
88
102
930
124 75
75 47
53
22000
77
87 100
14000 57
51
CONT TRQ FUEL FLOW (SE)
1380/2690
COMPUTED AS PER CLEAN CONFIGURATION IAW TC 1-237
87
CRUISE IAS (SE)
CRUISE TORQUE 102
.96
52

CRUISE SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
90 180 180
20 48
?F DMF ALQ-144 0.8 .08 M130 0.3
.03
LOAD 15.0
1.50 TOTAL 16.1 1.61
0 20
111 112 108
0 134
47 94
100 102 80 84
58
88
102
87
930
690
124 75
75 47
53
22000
77
87 100
14000 57
53
SE MAX ALLOW GWT/IAS
2
4 MULTIPLY ? TRQ (2) BY DMF (1.61) THEN SUBTRACT
½ FROM SE30 MIN LINE TRQ (53)
6 DETERMINE SE MAX ALLOWABLE GWT THEN MOVE RIGHT
TO IAS
3 MOVE LEFT TO ? LINE THEN UP TO ? TRQ
2x1.613.2/21.6 53-1.651.4
77 KTS
21600
5 RE-ENTER CHART AT NEW TORQUE MOVE UP (FOLLOW
SLANT) TO MAX END AND R/C LINE
2 MOVE UP TO MAX END AND R/C LINE
1 ENTER CHART AT SE 30 MIN LINE USING LOW ETF
.96
51.4
54

CRUISE SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
90 180 180
20 48
?F DMF ALQ-144 0.8 .08 M130 0.3
.03
LOAD 15.0
1.50 TOTAL 16.1 1.61
0 20
111 112 108
0 134
47 94
100 102 80 84
58
88
102
87
930
690
124 75
75 47
53
22000
21600
77
77
87 100
14000 57
55

MAX ALT-MSL MAX END-IAS (SE)
COMPUTED AS PER CLEAN CONFIGURATION IAW TC 1-237
73 KTS
20000 LBS
.96
56

CRUISE SECTION
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
90 180 180
20 48
?F DMF ALQ-144 0.8 .08 M130 0.3
.03
LOAD 15.0
1.50 TOTAL 16.1 1.61
0 20
111 112 108
0 134
47 94
100 102 80 84
58
88
102
87
930
690
124 75
75 47
53
22000
21600
77
77
87 100
14000 57
4000 73
57

MAX ANGLE
COMPUTED AS PER CLEAN CONFIGURATION IAW TC 1-237
0 PA
20000 LBS
54
58

MAX ANGLE
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
90 180 180
20 48
?F DMF ALQ-144 0.8 .08 M130 0.3
.03
LOAD 15.0
1.50 TOTAL 16.1 1.61
0 20
30
111 112 108
0 134
47 94
100 102 80 84
58
88
102
87
930
690
124 75
75 47
53
22000
21600
77
77
87 100
14000 57
4000 57
59

Vne-IAS
COMPUTED AS PER CLEAN CONFIGURATION IAW TC 1-237
0 PA
175 KTS
20000 LBS
60

Vne-IAS
20000
20 20
0 0
4000
1500
18500
.980 1.0 .96
.984 1.0 .967
108 110 106
21000 21500
97 100
OGE
90 180 180
20 48
?F DMF ALQ-144 0.8 .08 M130 0.3
.03
LOAD 15.0
1.50 TOTAL 16.1 1.61
0 20
30
140
111 112 108
0 134
47 94
100 102 80 84
58
88
102
87
930
690
124 75
75 47
53
22000
21600
77
77
87 100
14000 57
4000 57
61

QUESTIONS?
62

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