Mig-21-Flight Model - Check six

Mach Number
Mach Number
Mig-21-FM-Identification-Rev. 14
Maximum After Burner Thrust Law identification.
The same procedure will be applied using maximum after burner manual figures, but we have to
consider to following obvious error in all these figures: initial speed is said 550km/h (indicated) when
the first curve indicated the time required to reach 550 km/h, so I have to consider that initial speed is,
in fact, 500 km/h indicated:
Altitude of 1,000m / 3,281ft
1.200
86
1.15
1.100
55
1.05
1.000
41
0.95
29
0.900
0.85
22
0.800
0.75
15
0.700
0.65
8
0.600
0.55
1 0.500
0.45
0.400
0.300
0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00 90.00 100.00
Time (s)
Extracted
Sampled
Mach
V(TAS) dV/dt Ps Ps Thrust
m/s (m/s**2) (m/s) (ft/s) (lbs)
0.40 135 5.61 77 252 5,743
0.50 168 4.81 82 270 11,822
0.60 202 4.81 99 324 12,141
0.70 235 4.81 115 379 12,589
0.80 269 4.81 132 433 13,531
0.90 303 2.80 87 284 13,531
1.00 336 2.40 82 270 16,720
1.10 370 1.09 41 134 18,883
Altitude of 3,000m / 9,843ft
1.300
103
1.25
1.200
65
1.15
1.100
44.5
1.05
32
1.000
0.95
25
0.900
0.85
18.5
0.800
0.75
11
0.700
0.65
4
0.600
0.55
0.500
0.400
0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00 90.00 100.00 110.00
Time (s)
Extracted
Sampled
Mach
V(TAS) dV/dt Ps Ps Thrust
m/s (m/s**2) (m/s) (ft/s) (lbs)
0.50 164 4.69 79 258 10,812
0.60 197 4.69 94 309 11,113
0.70 230 4.38 103 337 11,127
0.80 263 5.06 135 444 13,296
0.90 296 4.69 141 464 14,551
1.00 329 2.63 88 289 15,174
1.10 361 1.60 59 194 16,634
1.20 394 0.86 35 114 17,065
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