Yggdrasil

The Ygdrassil family of rockets entered service in 1982 with the Ringerike National Space Commission and has successfully launched both military and civil payloads over it's service life including the Utforsker Probe, which returned images and data of Tethys before it's orbit decayed. It is a three stage solid fuelled rocket with an optional fourth stage that can be fitted to the more recent Ygdrassil-2 configuration. The design is closely shared with that of a proposed Ringeriker ICBM and that the nation has the facility to rapidly develop such a capability should the need arise.

History
The Ygdrassil series rockets have their origins in the Ringeriker ballistic missile program, hence the storable HTPB solid fuel boosters, it first successfully launched to orbit in in 1988 and has successfully launched a large number of satellites and probes to orbit and beyond.

The Ygdrassil has been iterated upon several times with the Ygdrassil F consisting of essentially two Ygradrassil first stages stacked one-atop the other beneath the third and possibly fourth stages.

The rocket has been officially retired by the RNSC, however it is still offered by the manufacturer for commercial customers and an air-launched version is under development.