A fighter aircraft has two turbofan engines, each one is delivering a thrust of 81.4 kN, where is the density ratio. The aircraft has the following characteristics: Weight = 181.2 kN, Wing area = 38 m² , CLmax = 2.3. The drag polar that the aircraft obeys is CD = 0.021 + 0.11 CL² .

The pilot wishes to turn with a bank angle of 30 degrees at an altitude of 12192 m ( = 0.247), and with 60% of engine available thrust.

There are two possible maximumspeeds for this turning flight at this thrust setting. What is the lowest speed amongst them?