<hi style=afpcap>F-15A Eagle fighters of the 142nd Fighter Group, Portland, Oregon, crackle through a cloud-laced sky along the cold Pacific coastline. The sideways slit directly behind the pilot is a cooling air exhaust duct for the cockpit air-conditioning system and is flanked, atop the two engines, by intake bypass air spill ducts while helping regulate the flow of air into the jet engines. The radar warning receiver atop the Eagle's left vertical fin (at right in the picture) gives this fin a different shape from the other, which has an electronic countermeasures aerial on top.</hi>
