Flight Performance of Fixed and Rotary Wing Aircraft

| () o | =sea level, standard, stagnation or initial conditions | |
| () a | = air | |
| () b | = body | |
| () c | = climb | |
| () e | = value at end point | |
| () f | = fuel quantity | |
| () g | = in ground effect, ground conditions | |
| () h | = hover conditions | |
| () i | = ideal, induced, or value at initial point | |
| () jet | = relative to a jet, or jet engine | |
| () le | = value at leading-edge | |
| () lo | = value at lift-off | |
| () max | = maximum value | |
| () min | = minimum value | |
| () mr | = main rotor | |
| () p | = parasite | |
| () qc | = quarter-chord | |
| () ref | = reference quantity | |
| () sl | = sea level conditions (when alias with "o" occurs) | |
| () t | = transmission, or turn | |
| () te | = value at trailing-edge | |
| () tip | = value at the blade tip | |
| () to | = value at take-off | |
| () tr | = tail rotor | |
| () v | = viscous or profile | |
| () w | = wind | |
| () | = mean value | |
| ( ) | = time derivative | |
| ? | = free stream conditions |