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Mig-21-Flight Model - Check six

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Time (s)<br />

Mach Number<br />

<strong>Mig</strong>-<strong>21</strong>-FM-Identification-Rev. 14<br />

1.300<br />

1.200<br />

62<br />

1.15<br />

1.100<br />

41.5<br />

1.05<br />

1.000<br />

32.5<br />

0.95<br />

25.5<br />

0.900<br />

0.85<br />

19.5<br />

0.800<br />

0.75<br />

14<br />

0.700<br />

0.65<br />

8<br />

0.600<br />

0.55<br />

1.5<br />

0.500<br />

0.45<br />

0.400<br />

0.300<br />

0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00 90.00 100.00<br />

Time (s)<br />

Extracted<br />

Sampled<br />

Mach<br />

V(TAS) dV/dt Ps Ps Thrust<br />

m/s (m/s**2) (m/s) (ft/s) (lbs)<br />

0.50 168 5.18 89 291 11,374<br />

0.60 202 5.61 115 379 13,260<br />

0.70 235 6.12 147 482 14,826<br />

0.80 269 5.61 154 505 15,544<br />

0.90 303 4.81 148 487 16,311<br />

1.00 336 3.74 128 4<strong>21</strong> 19,915<br />

1.10 370 1.64 62 203 20,529<br />

The comparison between the computed data and the one extracted from the L-17 manual is<br />

summarized by the following figure: the computed values are displayed as B&W curves, the values<br />

extracted from manual are displayed as big dots.<br />

180<br />

165<br />

150<br />

135<br />

3,281<br />

9,843<br />

RL 1,000m<br />

Level <strong>Flight</strong> Acceleration<br />

120<br />

RL 3,000m<br />

105<br />

90<br />

75<br />

60<br />

45<br />

30<br />

15<br />

0<br />

0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60<br />

Mach<br />

Fig.15<br />

Page - 26

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