For the MD-11 with GE 80C2D1F and PW 4460/62:
1st attempt - 5' on and 30" off for each minute on.
2nd attempt - 5' on and 10' off.
3rd attempt - 5' and then give up.
Starter reengagement:
GE - Normal: N2 below 20%. Emergency: as high as 30%.
PW - Normal: N2 below 15%. Emergency: as high as 20%.
s_p