Delta IV Heavy
The Delta IV Heavy (Delta 9250H) is similar to the Medium+ (5,2), except that it uses two additional CBCs instead of using GEMs. These are strap-on boosters which are separated earlier in the flight than the center CBC. The Delta IV Heavy also features a stretched 5-meter composite payload fairing.[6] An aluminum trisector (3 part) fairing derived from the Titan IV fairing is also available.[7] This was first used on the DSP-23 flight.
Capacity (separated spacecraft mass) of the Delta IV Heavy:
Capacity (separated spacecraft mass) of the Delta IV Heavy:
- geosynchronous transfer orbit (GTO) 13,130 kg (28,950 lb), more than any other currently available launch vehicle
- geosynchronous orbit (GEO) 6,275 kg
- escape orbit 9,306 kg
- C3 performance of 30 km²s−2: 5,228 kg
- C3 performance of 60 km²s−2: 2,521 kg