Arcturus Sounding Rocket Kit The Arcturus sounding rocket was intended to serve as a replacement, or upgrade, to the popular Arcas sounding rockets. It's main selling point was that it could be launched from the existing Arcas launch platforms, avoiding new infrastructure expenses. The Arcturus rocket never gained a wide user base as new two-stage Arcas configurations served the same purpose more efficiently. The finished scale model stands an impressive 38.5" tall. This is a big model rocket kit! $26.95  The Arcturus sounding rocket was designed and used for scientific data gathering, mainly meteorological. Dimensions Total length : 3ft+ (38.5" - big model rocket!) Diameter : 1.637" (BT60) Fin Span : 4.739" Weight : 4.9oz Recommended Rocket Motors Estes® D12-5 Single Use Aerotech® E20-7 Reloadable Aerotech® E18-7, E28-7, F24-7 Challenges The Arcturus rocket kit is offered for sale complete with fin mounting attachments for added detail. These are formed from pre-cut balsa pieces, using the illustrated instructions. Self-adhesive decals are included for lettering, logo, and bolts. Painting masks help modelers paint the arcs.