The F-15 given serial number 71-0290 had ... a testbed for the F-15E strike eagle, a technology demonstrator, and even a NASA research aircraft for several programs at the same time as the F16XL.

He converted his second eagle of the day and the only 3 all day at No. 15 to open a four-shot lead. McIlroy also moved to 1 under for the week on the hole, bouncing back after he made double bogey ...