Sleipnir (Rocket)

The Sleipnir Super Heavy-Lift rocket is a joint Chezzetcoooker-Ringeriker carrier rocket family, with a capacity to LEO in the 100,000 kg range. It first launched in 2002. Design wise it is essentially four Arvakr rockets attached onto the side of a much larger core stage.

History
The Sleipnir began it's life as a design study by Kongelig Romoppskytningsgruppe, offered to the Ringeriker government as a future development, the RNSC showed no interest at the time, however following the first successful launches of the Arvakr family, the Chezzetcooker government expressed it's interest, and development began, with co-operation facilitated by the Northern Integrated Systems Group. A further development of this idea features eight boosters and second stage formed of a modified version of the core stage, this model would be capable of lifting 175,000 kg.

It has seen several iterative developments since it's first launch, including modernized control systems, updated engines and the integration of Arvakr 3 based reusable boosters.

Sleipnir
The original variant first launched in 2002. Saw iterative improvement through it's production.

Sleipnir F1
The F1 integrates modernized flight control and avionics systems as well as upgraded engines.

Sleipnir 2
Integrates Arvakr 3 based boosters resulting in reduced per-launch costs, first flown in 2020.

Sleipnir 2F1
Proposed model integrating a newly redesigned, reusable core stage based on technologies developed for the Arvakr 3.

Sleipnir 2T
Proposed model capable of launching 175,000 kg to LEO, consisting of eight Arvakr 3 derived boosters wrapped around the core and a modified Sleipnir 2 Core stage featuring a single engine as a second stage.

Operators
 Chezzetcook
 * Chezzetcook financed the development of the Sleipnir and operates them from their Launch Ship.

 Ringerike
 * The Sleipnir has been operated by the RNSC,and by Kongelig Flyfabrikk's subsidiary, Kongelig Romoppskytningsgruppe in very small numbers.