Gravitron Angular Targeting Safety Lock

A critical safety mechanism integrated into the Gravitron system’s angular targeting mechanism in Moonbase Alpha’s observation dome. It physically locks the probe/force field at a safe height to prevent descent toward the lunar surface, acting as a fail-safe against structural damage or gravitational interference. Manually overridden by characters (e.g., Hobson, Benoit) to enable tactical maneuvers (e.g., repelling Cybermen saucers).

3 appearances

Purpose

Blocks Gravitron field or probe from lowering too far to avoid structural damage to the moonbase.

Significance

Hobson's disabling enables the crew's improvised counterattack against Cybermen, shifting battle momentum and highlighting tensions between caution and bold improvisation.

Appearances in the Narrative

When this object appears and how it's used

3 moments

S4E26 · The Moonbase Part 4

Gravitron repurposed as Cyberman countermeasure

The Gravitron Angular Cut-Out is a critical safety mechanism that initially prevents the probe from being lowered too far, risking damage to the moonbase. Hobson disables it after the Doctor's insistence, allowing Benoit to manually override the system. The cut-out's removal is a calculated risk, reflecting the crew's desperation and the Doctor's confidence in the plan. Its override is a symbolic moment, representing the crew's willingness to push boundaries in the face of existential threat.

Before: Active, locking the probe at a safe height to prevent base damage.

After: Disabled by Hobson, allowing the probe to be lowered to the lunar surface but introducing structural risks.

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S4E26 · The Moonbase Part 4

Doctor overrides gravitron safety protocols

The Gravitron Angular Cut-Outs are a critical safety mechanism that initially prevent the probe from being lowered to the lunar surface. Hobson acknowledges their necessity but ultimately agrees to override them at the Doctor's insistence. Benoit disengages the cutouts, allowing the probe to be aimed directly at the Cybermen. This action is pivotal in repelling the invaders but also risks destabilizing the moonbase.

Before: Engaged, preventing the probe from descending below a safe height.

After: Disengaged, allowing the probe to be lowered to the lunar surface and unleashing the gravitron's full force.

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S4E26 · The Moonbase Part 4

Gravitron repurposed to expel Cybermen

The Gravitron Angular Cut-Out is a critical safety mechanism that prevents the probe from descending too low and risking damage to the moonbase. Hobson initially resists overriding it, but the Doctor's insistence—and the urgency of the situation—leads to its manual disablement. Benoit bypasses the cutout, allowing the probe to descend to surface level. The override symbolizes the crew's willingness to bend rules in a crisis, though it comes at the cost of potential damage to the gravitron system.

Before: Engaged, locking the probe at a safe height to prevent gravitational interference with the base.

After: Manually overridden and disabled, allowing the probe to descend to the lunar surface, but requiring immediate attention post-event to restore safety protocols.

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