Not saying that calculation is impossible: 2,000 light years per hour: milky way 126,000 light years a crossed= 60+ hours to cross OUR galaxy. Jedi cruiser 60,000 light years per jump; 3 jumps takes you from 1 side of milky way to the other: time elapsed during each jump = 0 time in between jumps = refuel and cool down time+ spin up time of hyperdrive engines. Ether way the jedi cross the milky way FASTER than the forerunners Idk on power supplies/fuel sources its been a while. But yea jus sayin simple math the jedi cruiser jumps in 3 jumps the entire diameter of our galaxy, which takes 60+ hours for the fore runners to do at 2,000 light years per hour.