Prometheus IV

Outside of the Saturn family, the Titan IV is one of the heaviest launch vehicle available in BDB. The Titan IV brings its own set of large core tanks and a pair of UA1207 boosters (Prometheus-III-7) for the Titan IVA or a pair of SRBU's (Prometheus-IV-SRBU) for the Titan IVB. Titan IV launches with the boosters only, then air starts the core first stage 30 seconds before the boosters burn out.

The Titan IV can launch with either a Centaur T (a modified Centaur G Prime), Inertial Upper Stage (IUS) or no upper stage.

Upper Stage

• Inon G'
• IUS

Second Stage

• Prometheus-IV-3125 Fairing base
• Prometheus Avionics Unit
• Prometheus-IV-1400 Liquid fuel tank
• Prometheus-IV LR91-177 "Asteria" Liquid engine

First Stage

• Prometheus-II-875 Stack decoupler
• Prometheus-II-3080 Liquid fuel tank
• Prometheus-IV-3200 Liquid fuel tank
• Prometheus-IV LR87-605 "Astreous" Liquid engine

Boosters (Stage 0)

• 2x Prometheus-III-7 (Titan IVA)
• 2x Prometheus-IV SRBU (Titan IVB)

Titan IVB with Cassini-Huygens

Kerbal Koncepts: Alliant Systems Low Cost Launch System / Evolved Expendable Launch Vehicle