The Joint Strike Fighter Program Office intends to award a sole source contract to Lockheed Martin Aeronautics, Fort Worth, TX for Low Rate Initial Production (LRIP) Lot 4 of the Joint Strike Fighter aircraft. The proposed contract will provide thirteen Conventional Take-off and Landing (CTOL) aircraft, fifteen Short Take-off Vertical Landing (STOVL) aircraft, one to four Carrier Variant (CV) aircraft, associated sustainment support supplies and services, ancillary mission equipment (AME), special test and tooling equipment (STE) and support for LRIP Lots 1, 2 and 3 aircraft at Eglin AFB (FL). The anticipated award date is January 2009.