|
|
||||||||
|
|
|
|
|
|
|
|
|
|
|
Pioneer
1
Lunar Probe |
|
Right click to download Modelsheet (850 KB) Instruction (725 KB) |
|
History On October 11, 1958 the Pioneer 1 Lunar
Probe was launched on a Thor-Able rocket on a mission to fly by the moon. The spacecraft consisted of two laminated
plastic cones with a thin cylinder in the middle. Black or white plastic
stripes were used for thermal control. At the top of the spacecraft was a
retro-rocket for lunar orbit insertion. In the other end eight small
low-thrust solid propellant velocity adjustment rockets were mounted on a
ring. They could be jettisoned after use. A programming error in the Pioneer 1 launch vehicle upper stage resulted in Pioneer 1 being given insufficient velocity to escape the Earth's gravitational field. Although Pionner 1 newer reached lunar orbit, it was not a complete failure. In fact it did reach an altitude of 113854 km above Earth (A record at that time) and provided data on the extent of the Earth's radiation belts. The vehicle reentered over the Pacific Ocean 2 days later. Sources: NSSDC Master Catalog Display: Spacecraft Lunar impact: A history of project ranger Part I. Ninfinger - photos from Al Cikas Books: |
|||||||||
