Pioneer H

Pioneer H is an unlaunched unmanned space mission that was part of the US Pioneer program for a planned 1974 launch. Had this mission and spacecraft been launched, it would have been designated Pioneer 12; that designation was later applied to the Pioneer Venus Orbiter.

As planning for the Pioneer 10 and 11 missions progressed, mission scientists found themselves desiring a third probe. In 1971, a formal mission study was proposed for a spacecraft to be launched to Jupiter in 1974, where it would use the gas giant as a gravitational slingshot to travel outside the ecliptic. This was the first Out-Of-The-Ecliptic mission (OOE) proposed, for Jupiter and solar (Sun) observations.

NASA/Ames Research Center would have managed the project. The NASA contractor TRW Systems Group (formerly Space Technology Laboratories) would have constructed Pioneer H from the flight-qualified spare components intended for the Pioneer F and G probes (designated Pioneer 10 and Pioneer 11 after launch).

NASA management did not approve the mission proposal, and it was never launched in 1974. In 1976 NASA transferred the craft (without RTG) to the Smithsonian Institution. In January 1977, Pioneer H was moved to the National Air and Space Museum, where it was eventually displayed as a replica of Pioneer 10.

Read more about Pioneer H:  Ulysses Mission, NASA New Frontiers Program, Juno Mission, Current Location

Other articles related to "pioneer h, pioneer":

Pioneer H - Current Location
... Pioneer H hangs in the Milestones of Flight Gallery at the National Air and Space Museum in Washington, D.C ... serving as a stand-in for the Pioneer 10 probe ... in official Smithsonian records as a "replica", the spacecraft was considered fully functional by Pioneer mission planners ...

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