Boeing has been awarded a $408.7m contract for the full rate production and delivery of nine F/A-18E aircraft in agreement with the aircraft variation in quantity clause.
The ceiling-priced modification contract follows a previously awarded fixed-price-incentive-fee contract.
The combat-proven F/A-18E Hornet is a twin-engine, multimission, tactical aircraft that can simultaneously engage in air-to-air fighter missions and air-to-ground strike missions.
The aircraft is equipped with an M61A1 20mm gun mounted inside the nose of the craft, and carries 13,700lb of external ordnance and has nine weapon stations.
Work will be carried out at the company's facility in Missouri, US and is expected to be completed in December 2013.
The US Naval Air Systems Command, Patuxent River, Maryland, US, will be the contracting activity.