Stealth ablative coating

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Stealth ablative coating is a specialized spacecraft hull material of human origin.

Description

Black in color, the stealth ablative coating serves to refract both UNSC radar and Covenant sensors, making the ship invisible to radar, similar to the way active camouflage cloaks something from eyesight. However, the coating also doubles as a visual cloak, enabled by the ship's texture buffers.

The coating must be maintained perfectly or it will return radar signals. This necessitates constant maintenance on the entire coating. Therefore, virtually all UNSC prowlers have relatively small surface areas, so that less has to be maintained. An exception to this is the UNSC Point of No Return, which is a prowler the size of a UNSC destroyer. Stealth ablative coating can also be found on Long Range Stealth Orbital Insertion Pods.

By early 2557, stealth ablative coatings had begun to see applications outside the UNSC. Ace of Spades, a Mariner-class transport ship captained by Rion Forge, was equipped with such a coating along with other stealth technologies.

Trivia

• In reality, there are stealth bombers that use a similar technology. They achieve radar invisibility due to refractive paint, which also must be repainted every time it becomes damaged.
• Strictly speaking, ablative armor is designed to prevent damage to a ship it covers by being damaged itself through the process of ablation. A stealth ablative coating would therefore mean that once damage has been taken, its stealth features would be useless.

List of appearances

• Halo: Ghosts of Onyx (First appearance)
• Halo: Smoke and Shadow