Fighter aircrafts like the F-15 are subjected to extreme G-forces in the air. Sharp turns can pull as much as 7 Gs, which both pilot and aircraft should be able to withstand. Aircraft parts like wing pins must be designed to handle these stresses with ease, or the risk of losing an aircraft to high G-forces than in actual combat would be greater.
It goes without saying that many of the Air Force’s aircrafts have established a long-standing reputation for ruggedness, with the F-15 as no exception. In fact, in 1983, an Israeli Air Force F-15D lost its right wing after a mid-air collision with an A-4N Skyhawk during a mock air battle. While the Skyhawk pilot ejected, the Eagle pilot—Zivi Nedivi—maintained control long enough to land safely.