Aircraft Engine Design, Second Edition

| Nomenclature (Chapters 1 3) | |
|---|---|
| A | = area |
| AB | = afterburner |
| AOA | = angle of attack, Fig. 2.4 |
| AR | = aspect ratio |
| a | = speed of sound |
| a | = quantity in quadratic equation |
| b | = quantity in quadratic equation |
| BCA | = best cruise altitude |
| BCM | = best cruise Mach number |
| C D | = coefficient of drag, Eq. (2.9) |
| | = coefficient of drag at maximum L/ D, Eq. (3.27a) |
| C DR | = coefficient of additional drags |
| C DRC | = coefficient of drag for drag chute |
| C D0 | = coefficient of drag at zero lift |
| C L | = coefficient of lift, Eq. (2.8) |
| | = coefficient of lift at maximum L/ D, Eq. (3.27b) |
| C 1 | = coefficient in specific fuel consumption model, Eq. (3.12) |
| C 2 | = coefficient in specific fuel consumption model, Eq. (3.12) |
| c | = quantity in quadratic equation |
| D | = drag |
| d | = infinitesimal change |
| e | = planform efficiency factor |
| exp | = exponential of |
| f s | = fuel specific work, Eq. (3.8) |
| g | = acceleration |
| g c | = Newton's gravitational constant |
| g 0 | = acceleration of gravity |
| h | = height |
| K 1 | = coefficient in lift-drag polar equation, Eq. (2.9) |
| K 2 | = coefficient in lift-drag polar equation, Eq. (2.9) |
| K' | = inviscid drag coefficient in lift-drag polar equation, Eq. (2.9) |
| K" | = viscous drag coefficient in lift-drag polar equation, Eq. (2.9) |
| k obs | = velocity ratio over obstacle, Eq. (2.36) |
| k TD | = velocity ratio at touchdown, ( V TD = k TDV STALL |