Test Cases

UC5_TC_1

Preconditions: Aircraft is in operating mode M and sensor S value deviates at most +/-R % from nominal value; Input conditions / steps: Observed aircraft thrust is at value V1 and pilot input changes from A1 to A2; Expected results: Observed aircraft thrust changes and settles to value V2, respecting control objectives (settling time, overshoot, steady state error).

UC5_TC_2

Preconditions: Aircraft is in operating mode M and sensor S value is not available (sensor is out of order); Input conditions / steps: Observed aircraft thrust is at value V1 and pilot input changes from A1 to A2; Expected results: Observed aircraft thrust changes and settles to value V2, respecting control objectives (settling time, overshoot, steady state error.

UC5_TC_3

Preconditions: Aircraft is in operating mode M and sensor S value deviates at most +/-R % from nominal value; Input conditions / steps: Observed aircraft thrust is at value V1 and perturbations in non-pilot input cause it to change to V2; Expected results: Observed aircraft thrust returns to value V1, respecting control objectives (settling time, overshoot, steady state error).

UC5_TC_4

Preconditions: Aircraft is in operating mode M and sensor S value is not available (sensor is out of order); Input conditions / steps: Observed aircraft thrust is at value V1 and perturbations in non-pilot input cause it to change to V2; Expected results: Observed aircraft thrust returns to value V1, respecting control objectives (settling time, overshoot, steady state error).

UC5_TC_5

Preconditions: Aircraft is in operating mode M and sensor S value deviates at most +/-R % from nominal value; Input conditions / steps: Observed aircraft thrust is at value V1 and pilot input changes from A1 to A2; Expected results: Observed aircraft thrust changes and settles to value V2, respecting operating limit objectives (e.g. upper limit in shaft speed).

UC5_TC_6

Preconditions: Aircraft is in operating mode M and sensor S value is not available (sensor is out of order); Input conditions / steps: Observed aircraft thrust is at value V1 and pilot input changes from A1 to A2; Expected results: Observed aircraft thrust changes and settles to value V2, respecting operating limit objectives (e.g. upper limit in shaft speed).

UC5_TC_7

Preconditions: Aircraft is in operating mode M and sensorS value deviates at most +/-R % from nominal value; Input conditions / steps: Observed aircraft thrust is at value V1 and perturbations in non-pilot input cause it to change to V2; Expected results: Observed aircraft thrust returns to value V1, respecting operating limit objectives (e.g. upper limit in shaft speed).

UC5_TC_8

Preconditions: Aircraft is in operating mode M and sensor S value is not available (sensor is out of order); Input conditions / steps: Observed aircraft thrust is at value V1 and perturbations in non-pilot input cause it to change to V2; Expected results: Observed aircraft thrust returns to value V1, respecting operating limit objectives (e.g. upper limit in shaft speed).

UC5_TC_9

Preconditions: Aircraft is in operating mode M and system parameter P deviates at most +/- R % from nominal value; Input conditions / steps: Observed aircraft thrust is at value V1 and pilot input changes from A1 to A2; Expected results: Observed aircraft thrust changes and settles to value V2, respecting control objectives (settling time, overshoot, steady state error).

UC5_TC_10

Preconditions: Aircraft is in operating mode M and system parameter P deviates at most +/- R % from nominal value; Input conditions / steps: Observed aircraft thrust is at value V1 and perturbations in non-pilot input cause it to change to V2; Expected results: Observed aircraft thrust returns to value V1, respecting control objectives (settling time, overshoot, steady state error).

UC5_TC_11

Preconditions: Aircraft is in operating mode M and system parameter P deviates at most +/- R % from nominal value; Input conditions / steps: Observed aircraft thrust is at value V1 and pilot input changes from A1 to A2; Expected results: Observed aircraft thrust changes and settles to value V2, respecting operating limit objectives (e.g., upper limit in shaft speed).

UC5_TC_12

Preconditions: Aircraft is in operating mode M and system parameter P deviates at most +/- R % from nominal value; Input conditions / steps: Observed aircraft thrust is at value V1 and perturbations in non-pilot input cause it to change to V2; Expected results: Observed aircraft thrust returns to value V1, respecting operating limit objectives (e.g., upper limit in shaft speed).

UC5_TC_13

Preconditions: Aircraft is in operating mode M; Input conditions / steps: Observed aircraft thrust is at value V1, pilot input changes from A1 to A2, and outside air pressure abruptly changes from P1 to P2; Expected results: Observed aircraft thrust changes and settles to value V2, respecting control objectives (settling time, overshoot, steady state error).

UC5_TC_14

Preconditions: Aircraft is in operating mode M; Input conditions / steps: Observed aircraft thrust is at value V1, small perturbations in non-pilot input cause it to change to V2, and outside air pressure abruptly changes from P1 to P2; Expected results: Observed aircraft thrust returns to value V1, respecting control objectives (settling time, overshoot, steady state error).

UC5_TC_15

Preconditions: Aircraft is in operating mode M; Input conditions / steps: Observed aircraft thrust is at value V1, pilot input changes from A1 to A2, and outside air pressure abruptly changes from P1 to P2; Expected results: Observed aircraft thrust changes and settles to value V2, respecting operating limit objectives (e.g., upper limit in shaft speed).

UC5_TC_16

Preconditions: Aircraft is in operating mode M; Input conditions / steps: Observed aircraft thrust is at value V1, small perturbations in non-pilot input cause it to change to V2, and outside air pressure abruptly changes from P1 to P2; Expected results: Observed aircraft thrust returns to value V1, respecting operating limit objectives (e.g., upper limit in shaft speed).

UC5_TC_17

Preconditions: Aircraft is in nominal operating mode; Input conditions / steps: Pilot input changes from A1 to A2, causing surge / stall avoidance indicator signal to be set; Expected results: Aircraft switches to surge / stall prevention operating mode.

UC5_TC_18

Preconditions: Aircraft is in surge / stall prevention operating mode; Input conditions / steps: Pilot input changes from A1 to A2, causing surge / stall avoidance indicator signal to be cleared; Expected results: Aircraft switches to nominal operating mode.

UC5_TC_19

Preconditions: Aircraft is in nominal operating mode; Input conditions / steps: Perturbations in non-pilot input cause surge / stall avoidance indicator signal to be set; Expected results: Aircraft switches to surge / stall prevention operating mode.

UC5_TC_20

Preconditions: Aircraft is in surge / stall prevention operating mode; Input conditions / steps: Perturbations in non-pilot input cause surge / stall avoidance indicator signal to be cleared; Expected results: Aircraft switches to nominal operating mode.