What sort of noise levels are reached in the cockpit of an F/A-18F Super hornet?

Actually, I suspect it is very low. When I flew T-38s (similar type aircraft, earlier technology), it was very loud on the ramp watching aircraft on takeoff, but it was very quiet inside the cockpit. Even when the afterburners were ignited, you could hear them - but you could easily carry on a conversation with your wingman or your instructor, although we rarely said anything at all. It was louder inside the cockpit of a T-37 (even older aircraft, non-supersonic, no afterburners). In fact, it is louder in the back of a DC-9 passenger compartment than it was inside a T-38. F-18s may be different, but I don't know why they should be. Perhaps it is loud during flight operations when the canopy is up and you are waiting to get lined up - i.e. while other guys are taking off.

If you are outside the aircraft while it is being run up, that is indeed very loud. Levels of 150 dB are not unusual, and it will permanently damage your hearing if you do not wear protection.

ADDED: The noise levels depend on whether the canopy is open or closed. These are just rough estimates based on experience. When the canopy is open and you are waiting for clearance to the active with your helmet on, you may be subjected to noise from neighboring aircraft that exceeds 100 dB. To get to 150 dB as quoted above, you really have to be standing in front of a running engine with no protection. Once the canopy is sealed, i suspect you don't see over 70 dB.

Dogfighting is element of the previous. at present, planes at the instant are not designed to win in a dogfight, because of fact enemy plane won't get interior of 5 miles of an F-18 formerly its missiles are released. Electronics warning structures detect the bandits formerly F-18 pilots even see them. The Tomcat may be the final of canine combatants, from a bygone era !

apprently its suprisingly quiet