Locate the data block for 217 power and flaps 11..
Locate the column for Runway 08.
Enter the Runway Limit Gross Weight section at the rows appropriate to 65.F and read the values in the Runway 08 column. The RUNWAY LIMIT GROSS WEIGHT (zero wind) for 60.F is 157,100 lbs. and for 70.F is 156,700 lbs. Interpolation gives a RUNWAY LIMIT GROSS WEIGHT of about 156,900 lbs.
Proceed on the same row to the right until you are under the CLIMB LIMIT column. The climb limit values for 60 F & 70 F are the same and the CLIMB LIMIT GROSS WEIGHT is 149,500 lbs.
Choose the lesser of RUNWAY LIMIT or CLIMB LIMIT gross weight as the maximum, in this case 149,500 lbs. Since the actual aircraft weight is 140,100 lbs., takeoff on Runway 08 is authorized.
Find the flex temp and V-speeds. Enter the flex temp section at the row equal to or greater than a gross weight of 140,100 lbs. (Interpolation is authorized if desired.) The flex temp is 40 C and the maximum ambient temperature to perform a flex takeoff is 85 F. V-speeds are found just below the 40/85 flex temp/max amb. V1=141, VR=145, & V2=151. Move along the same rows to find FR=156, SR=196, & MM=244.
Sample Problem #2. (Use the following figure as a guide.) You have received flight departure papers containing the following Runway Analysis and also a Pilot Weight Manifest with numbers for Runway 05R at MEX based on the following conditions:
Flaps: 04., Temp: 70.F, Winds: 0304, GTOW: 120,000 lbs.
While taxiing, the tower changes your runway for departure to Runway 05L. You need to check your capability for takeoff on Runway 05L, and then find the appropriate flex temperature and V-speeds.
Locate the data block for 217 power and flaps 04..
Locate the column for Runway 05L.
Enter the Runway Limit Gross Weight section at the row appropriate to 70.F and read the value in the Runway 08 column. The RUNWAY LIMIT GROSS WEIGHT (zero wind) for 70.F is 122,800 lbs.
Proceed on the same row (70.F) to the right until you are under the CLIMB LIMIT column and read the value. The CLIMB LIMIT GROSS WEIGHT is 131,200 lbs.
Choose the lesser of RUNWAY LIMIT or CLIMB LIMIT gross weight as the maximum, in this case 122,800 lbs. Since the actual aircraft weight is 120,000 lbs., takeoff on Runway 05L is authorized.
Find the flex temp and V-speeds. Enter the flex temp section at the row equal to or greater than a gross weight of 120,000 lbs. (Interpolation is authorized if desired.) Using the 121,000 lb. row, the flex temp is 23. C and the maximum ambient temperature to perform a flex takeoff is 10.
F. Since the actual outside air temperature of 70.
F is greater than the maximum ambient temperature for flex takeoff, a full power takeoff must be made. Read the V-speeds: V1=144, VR=148, & V2=152. Move along the same rows to find FR=158, SR=182, & MM=227.
EPR - Reduced Takeoff Thrust
ART switch to OFF, T.O. FLEX on TRI, Assumed Temp set in Selector.
-217
AS-SUMED TEMP .C MAX AMB TEMP .F ARTS OFF / STATIC SETTING (SET BY 60 KTS) AIRPORT PRESSURE ALTITUDE - FEET
0 1000 2000 3000 4000 5000 & .
26 67 - - - - - 2.03
28 70 - - - - 2.02 2.01
30 73 - - - - 2.00 2.00
32 78 - - - 1.98 1.98 1.98
34 84 - - 1.96 1.96 1.96 1.96
36 84 1.93 1.94 1.94 1.94 1.94 1.93
38 88 1.92 1.92 1.92 1.91 1.91 1.91
40 90 1.90 1.90 1.90 1.90 1.90 1.90
42 93 1.89 1.89 1.89 1.89 1.88 1.88
44 97 1.87 1.87 1.87 1.87 1.87 1.87
46 100 1.86 1.86 1.86 1.85 1.86 -
48 104 1.84 1.84 1.84 1.84 - -
50 108 1.83 1.82 1.82 - - -
Bleed Corrections: AC Packs OFF +0.02 / Engine Anti-ice ON +0.00
-217A
AS-SUMED TEMP .C MAX AMB TEMP .F ARTS OFF / STATIC SETTING (SET BY 60 KTS) AIRPORT PRESSURE ALTITUDE - FEET
0 1000 2000 3000 4000 5000 & .
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