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Class 4 probe

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Class 4 probe

A class-4 probe

A class-4 probe was a type of probe with deflector shields utilized by the Federation to study spatial anomalies and spaceborne species. (TNG: "Rascals"; VOY: "Elogium")

According to the Star Trek: The Next Generation Technical Manual (p. 116), the class-4 probe is a stellar encounter probe. It is a modified class-3 probe with extended fuel supply allowing a 3,500,000 km range and propulsion supplemented with a driver coil. Sensors include triple redundant stellar field and particle detectors and a stellar atmosphere analysis suite. The probe is also equipped with six ejectable subprobes. See also: class-4 microprobe.


In 2369, a series of class-4 probes was also launched by the USS Enterprise-D to study the far side of a newly-discovered Dyson sphere, after the rescue of Montgomery Scott from the USS Jenolan. (TNG: "Relics") Later that year, the starship also launched a class-4 probe to investigate a molecular reversion field encountered by the shuttlecraft Feynman. (TNG: "Rascals")

In 2369, Benjamin Sisko wanted to use a class-4 probe to make a full analysis of a subspace rupture that appeared off of Deep Space 9. (DS9: "If Wishes Were Horses")

In 2371, USS Voyager launched a class-4 probe in an attempt to distract a large, aggressive space-dwelling lifeform. The probe though only seemed to make it angrier. (VOY: "Elogium")

In 2372, a Jadzia Dax proposed using a class-4 probe to test whether an artificial wormhole, created by Lenara Kahn and her team, was stable enough to allow starship travel. Dax believed this class of probe would provide a more accurate assessment because its shielding was similar to that on a starship. (DS9: "Rejoined")

In 2373, a class-4 probe was used to transmit a location signal, as well as several farewell recording from the crew of the USS Defiant, after being trapped behind an energy barrier surrounding the planet Gaia. (DS9: "Children of Time")

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