Reminder on the actual jump procedure:
Divert Power: Edu+Engineer (J-Drive), 10-60 seconds, Average (+0)
(Note that many engineer go slower (p.50) and take 1-6 minutes for a +2 bonus on this roll.)
Jump Results: 2d6 + grade of success of the Engineering check (-2 if using unrefined fuel): 8+ accurate jump, 1-7 inaccurate jump, 0- misjump