The single seat E and the two seat F are very much redesigned aircraft, based on the original airframe. Both have more powerful engines and improved avionics, and will eventually equip 22 squadrons. The F/A-18F will be modified to make the [[EA-18 Growler]], which will eventually replace the [[EA-6 Prowler]].<ref>[http://www.globalsecurity.org/military/systems/aircraft/f-18g.htm EA-18G/F/A-18G "Growler"]</ref>
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The single seat F/A-18E and the two seat F/A-18F are very much redesigned aircraft, based on the original airframe. Both have more powerful engines and improved avionics, and will eventually equip 22 squadrons. The F/A-18F will be modified to make the [[EA-18 Growler]], which will eventually replace the [[EA-6 Prowler]].<ref>[http://www.globalsecurity.org/military/systems/aircraft/f-18g.htm EA-18G/F/A-18G "Growler"]</ref>