Introduction to Aircraft Flight Mechanics: Performance, Static Stability, Dynamic Stability, and Classical Feedback Control

Lockheed C-5A
| Aircraft Parameter | C-5A | C-5A | C-5A |
|---|---|---|---|
| Altitude (ft) | S.L. | 20,000 | 40,000 |
| Mach | 0.25 | 0.7 | 0.7 |
| True Airspeed (ft/s) | 279 | 725 | 678 |
| Dyn Pressure (lb/ft 2) | |||
| Weight (lb) | 728,000 | 728,000 | 728,000 |
| Wing Area S (ft 2) | 6,200 | 6,200 | 6,200 |
| Wing Span b (ft) | 219.17 | 219.17 | 219.17 |
| Wing Chord c (ft) | 30.93 | 30.93 | 30.93 |
| C.G. (x c) | 0.25 | 0.25 | 0.25 |
| Trim AOA (deg) | 11.41 | 0.68 | 7.66 |
| I xx S(slug-ft 2) | 3.25 10 7 | 3.23 10 7 | 3.22 10 7 |
| I yy S (slug ft 2) | 3.28 10 7 | 3.28 10 7 | 3.28 10 7 |
| I zz S (slug ft 2) | 6.15 10 7 | 6.18 10 7 | 6.19 10 7 |
| I xz S (slug ft 2) | ?3.34 10 6 | 2.2 10 6 | ?1.42 10 6 |
| Longitudinal Derivatives | |||
| X u (1/s) | ?0.0111 | ?0.00283 | ?0.00339 |
| X ? (ft/s 2) | ?5.58 | 19.1 | 8.43 |
| Z u (1/s) | ?0.107 | ?0.042 | ?0.06 |
| Z ? (ft/s 2) | ?124 | ?450 | ?204 |
| M u (1/ft s) | ?0.00007 | ?0.00004 | 0.00005 |
| M ? (1/s 2) | ?0.76 | ?2.2 | ?1.07 |
| | ?0.169 | ?0.21 | ?0.113 |
| M q (1/s) | ?0.67 | ?0.898 | ?0.426 |
| X ? e (ft/s 2) | 0 | 0 | 0 |
| Z ? e (ft/s 2) | ?11.5 | ?27.7 |