The US Air Force has awarded Lockheed Martin an indefinite-delivery/indefinite-quantity contract with a ceiling of $6.9 billion to upgrade the service’s fleet of F-22 Raptor stealth fighters. Lockheed said that ”The Air Force uses this to authorize the Incremental Modernization capability efforts such as Increment 3.1, Increment 3.2A and Increment 3.2B” “F-22 modernization provides upgrades that ensures the Raptor maintains air dominance against an ever advancing threat – with capabilities such as advanced weapons, multi-spectral sensors, advanced networking technology and advanced anti-jamming technology.” Under increment 3.1 upgrade the fleet of radar evading 5th generation planes will get synthetic aperture radar (SAR) with ground mapping capability as well as the ability to carry eight 113kg (250lb) Small diameter bombs, in 2014; the increment 3.2A will see additional electronic protection measures and upgrades to the Link-16 data link system and its ability to work with the jets sensor suite.