Despite allowing five touchdowns after halftime, Navy (5-0) took a huge step toward regaining possession of the Commander-In-Chief's Trophy, awarded annually to the team with the most wins in games between Army, Navy and Air Force.
The winner of the Navy-Air Force matchup has captured the trophy every year since 1997. Air Force won it last season after beating Navy 28-14.
In this one, after Arion Worthman threw a 51-yard touchdown pass to Marcus Bennett with 1:53 remaining to put the Falcons up 45-41, Abey took the Midshipmen 75 yards in 11 plays for the go-ahead score.
That turned out to be the final salvo in a wild game in which Air Force (1-4) amassed 621 yards and Navy accumulated 557, including 471 on the ground.
Abey ran for 214 yards and two touchdowns, and Malcolm Perry contributed two long scores.
The Midshipmen converted a short punt and two Air Force fumbles into three touchdowns and a 28-10 halftime lead. After a 75-yard quarterback keeper by Abey made it 38-17 in the third quarter, Air Force rallied.
But the Falcons still came away with their fourth straight loss.
Worthman ran for 139 yards and two touchdowns, and he passed for 257 yards and two scores. But he fumbled twice, and both miscues led to Navy touchdowns.
Perry got the Midshipmen started with a 91-yard run and added a 40-yard touchdown catch late in the second quarter. The sophomore finished with a career-high 127 yards rushing.
Though Air Force leads the series between these two military academies 29-21, Navy has won 11 of the last 15.