Starstruck (formerly ARC Technology, a predecessor to AMROC) developed the hybrid fueled (polybutadiene and liquid oxygen) Dolphin. It was launched from a floating launch cannister at sea. Dolphin was to serve as a low-cost commercial sounding rocket.
Only one suborbital flight was conducted. The rocket, which was to reach 2400 m failed due to a thrust vectoring problem at a height of only 700 m.
The project ran out of money, as it was backed entirely with private funds, which did not suffice for further development.
Nr: TNr: Date: Vehicle LS Suc Payload
1 1 03.08.1984 Dolphin SCL * F R&D Launch sites: SCL = Offshore off San Clemente Island