NEA® 24″ Payload Release Ring (PRR-24)

The NEA® 24″ Payload Release Ring (PRR-24) is a payload release mechanism that utilizes the flight-proven technology of the NEA® mechanism product line to release payloads from a launch vehicle. It consists of four NEA® release mechanisms, two ring halves, and separation springs with corresponding holders. The four NEA®s compress the separation springs and hold the two ring halves together. The PRR-24, with the attached payload, is mounted to the launch vehicle using 36 fasteners. The system is electrically connected to the launch vehicle via redundant connectors, with one connector for each NEA® release mechanism and an additional connector for communication between the launch vehicle and the payload. Payload release occurs when the launch vehicle applies current to the PRR-24 connector, which distributes the current to the four NEA® release mechanisms, causing them to actuate and allow the separation springs to separate the payload. Typical applications include launch vehicle payload release for a Ø24″ circular port with 1/4″ fasteners, with other port sizes available for development. Key features include low release shock, redundant actuation circuitry, and the ability to handle payloads up to 500 kg (a 500 kg mass is acceptable with a CoG of 24″ from the launch vehicle or less). It also boasts low mass, high stiffness, compatibility with standard launch vehicle circuitry, a launch vehicle to payload connector interface, no debris generation, and compliance with standard tip-off requirements. The separation velocity is customizable with 4-30 push-off springs. The PRR-24 is qualified to standard launch environments, uses space-rated materials, and offers factory refurbishment. Shock output is measured at <300 g’s, and release time is <40 ms.