GPS Block IIIF
| Manufacturer | Lockheed Martin | ||
|---|---|---|---|
| Country of origin | United States | ||
| Operator | United States Space Force | ||
| Applications | Satellite navigation | ||
| Specifications | |||
| Bus | SV11-SV12: Lockheed Martin LM2100M, SV13+: Lockheed Martin LM2100 Combat Bus | ||
| Regime | Semi-synchronous MEO | ||
| Design life | 15 years | ||
| Production | |||
| Status | In production | ||
| Planned | Up to 22 | ||
| On order | 12 | ||
| Built | 0 | ||
| Maiden launch | 2027 (planned) | ||
| Last launch | 2034 (planned) | ||
| Related spacecraft | |||
| Derived from | GPS Block III | ||
| |||
GPS Block IIIF, or GPS III Follow On (GPS IIIF), is the second set of GPS Block III satellites, consisting of up to 22 space vehicles. The United States Air Force began the GPS Block IIIF acquisition effort in 2016. On 14 September 2018, a manufacturing contract with options worth up to $7.2 billion was awarded to Lockheed Martin. The 22 satellites in Block IIIF are projected to start launching in 2027, with launches estimated to last through at least 2037.