KerbalX

Details

• Type: VAB
• Class: satellite
• Part Count: 24
• Mods: 2
• KSP: 1.11.0

Mods

• Bluedog DB
• Squad (stock)

The Thor rocket began life as America’s first intermediate ballistic missile, which while having only a relatively short deployment, was the beginning of an entire rocket family using the Thor rocket as the first stage which eventually evolved into the Delta rocket family which is still used today such as the Delta IV Heavy which is used for heavy classified payloads.

The conversion and modification of pre-existing ICBMs into Atlas and Titan launch vehicles were costly so in the second generation of both vehicles they were built and standardized solely as launch vehicles. This led to the use of SLV designator which meant Standard Launch Vehicle and with it included various other improvements to the rockets. The Titan SLV-2-A would also be referred to as TAT for Thrust Augmented Thor with the addition of three Castor-1 rockets which would assist with liftoff and the initial ascent. This would allow for the greater payload of the Agena-D converted into a spy satellite which might have been difficult without the further assistance.

The Agena-D was the final variant of the Agena upper stage and was developed both to handle an increased payload capacity and to standardize the parts used on the Agena as each previous Agena was custom-built for their individual mission. This combined a standardized launch vehicle with a standardized upper stage and was highly successful.

The Fenris SLV-2 is an approximation of the improved Thor SLV-2-A with an upgraded engine but at its heart still remains the standard two-stage Fenris rocket. It is also augmented by a set of three Dioscuri boosters which approximate the Castor 1 boosters. This adds an element to the initial launch as the main engine and boosters are fired together with the spent boosters remaining in the rocket and are exhausted after approximately 30 seconds.

Due to a lack of different parts for the Basic or Long Fuel Tanks for the Fenris this also technically approximates the Thorad-SLV2G-Agena/D and the Thorad-SLV2H-Agena/D as the Discouri-1 represents both the Castor-1 and Castor-2 rockets for this purpose.

The Belle-D is an approximation of the Agena-D as configured for the KH-4A Corona J1 although due to limitations it’s not any different than the KH-4 Corona-M. It has a more powerful engine and capabilities than the Belle-D and thus can handle a greater payload.

Built in the VAB in KSP version 1.11.0.