At the beginning of World War I, the highest speed record of fighter jets was 165 km/h, and the speed of fighter jets now far exceeds that of fighter jets at that time. If there is a fighter whose speed is 28 times the highest record at that time, how many kilometers per hour is its speed?
在第一次世界大战开始时，战斗机速度的最高记录是165千米/时，而现在的战斗机速度远远超过了当时的战斗机．假如有一种战斗机的速度是当时最高记录的28倍，它的速度大约是多少千米/时？
<gadget id="calculator">165 * 28</gadget>
<output>4_620</output>

<result>4_620</result>