The Sukhoi Su-30MKM is a variant of the Su-30 series fighters, and part of the fleet of the Royal Malaysian Air Force.\ Its empty "weight" is

18400kg

(without payload and fuel) and the typical mission take-off 'weight' is

26000kg

(inclusive of

1600kg

of armament). The wing area is

62m^(2)

.\ Su-30MKM has 2 Lyulka AL-31FP turbofan engines with a total thrust specific fuel consumption (TSFC) of

44.2gkN^(-1)s^(-1)

.\ The drag polar of the plane is approximated as the following equation.\

C_(D)=0.032+0.07C_(L)^(2)

\ An unidentified aircraft was detected flying into Malaysian airspace, as a response, pilot A flew off with the typical mission take-off weight to intercept the target.\ a. The pilot flew at the speed that gives the highest range and intercepted the target (a recreational plane with faulty radio) at

300km

away from the airbase. Calculate the remaining fuel of the aircraft in

kg

. State one assumption used in your calculation.\ [15 marks]\ b. After the interception, pilot A was ordered to patrol the region. Determine the speed that the pilot should travel to give longest patrolling time. What condition is this speed based on and would this speed be a constant value? Explain.\ [20 marks]\ c. Determine the maximum remaining time (in hours) that the pilot can stay on patrol (ignore the trip back to airbase).\ [10 marks]\ d. Between range and endurance, which performance is affected by the presence of wind? Explain.\ [10 marks]

The Sukhoi Su-30MKM is a variant of the Su-30 series fighters, and part of the fleet of the Royal Malaysian Air Force. Its empty "weight" is 18400kg (without payload and fuel) and the typical mission take-off 'weight' is 26000kg (inclusive of 1600kg of armament). The wing area is 62m2. Su-30MKM has 2 Lyulka AL-31FP turbofan engines with a total thrust specific fuel consumption (TSFC) of 44.2gkN1s1. The drag polar of the plane is approximated as the following equation. CD=0.032+0.07CL2 An unidentified aircraft was detected flying into Malaysian airspace, as a response, pilot A flew off with the typical mission take-off weight to intercept the target. a. The pilot flew at the speed that gives the highest range and intercepted the target (a recreational plane with faulty radio) at 300km away from the airbase. Calculate the remaining fuel of the aircraft in kg. State one assumption used in your calculation. [15 marks] b. After the interception, pilot A was ordered to patrol the region. Determine the speed that the pilot should travel to give longest patrolling time. What condition is this speed based on and would this speed be a constant value? Explain. [20 marks] c. Determine the maximum remaining time (in hours) that the pilot can stay on patrol (ignore the trip back to airbase). [10 marks] d. Between range and endurance, which performance is affected by the presence of wind? Explain. [10 marks]