Currently, it is not possible to construct new world class ground test facilities for ntp like rover/nerva had. Rely more on computer analysis and slight modifications to existing facilities. The pewee 1 reactor was developed and tested by the los alamos scientific laboratory as part of project rover, which is administered by the space nuclear systems office.

Pewee-1 was a nuclear reactor, designed and built as part of the rover program, specifically to investigate the performance characteristics of a small reactor for nuclear propulsion in space. No particular effort had been made to maximize the specific impulse, that not being the reactor's purpose, but pewee achieved a vacuum specific impulse of 901 seconds (8. 84 km/s), well above the … The pewee 1 reactor was developed and tested by the los alamos scientific laboratory as part of project rover, which is administered by the space nuclear systems office. Ideal vacuum specific impulse is reported throughout this document. The calculated value assumes an infinite nozzle expansion ratio, without losses, discharging into a perfect vacuum. All of the malfunctions were due to a problem with the vehicle or human error on the ground. In 8 of the cases, all or parts of the nuclear system reentered the earth s atmosphere.

The calculated value assumes an infinite nozzle expansion ratio, without losses, discharging into a perfect vacuum. All of the malfunctions were due to a problem with the vehicle or human error on the ground. In 8 of the cases, all or parts of the nuclear system reentered the earth s atmosphere. There have been no … No particular effort had been made to maximize the specific impulse, that not being the reactor's purpose, but pewee achieved a vacuum specific impulse of 901 seconds (8. 84 km/s), well above the … The smaller pewee-1 reactor, tested in december 1968, achieved 503 mw for 2,400 seconds at an exit gas temperature of 2,539 k and a specific impulse of 865 seconds, prioritizing fuel element longevity …

The smaller pewee-1 reactor, tested in december 1968, achieved 503 mw for 2,400 seconds at an exit gas temperature of 2,539 k and a specific impulse of 865 seconds, prioritizing fuel element longevity …