Why are Most Submarines Black?

Submarines are painted in a variety of colors, but the iconic black color seems to dominate. This raises the question: why are most submarines black?

Traditional Reasons for Black Coating

Traditionally, the primary reason for the black color was to retain the night vision of submarine crews using periscopes. However, with the advent of modern periscopes, this reason may no longer be as pertinent. This longstanding practice became entrenched due to Russia painting a submarine pink in the 1960s, which drew ridicule and jokes, leading to the enduring black color.

“Imagine the response if a Russian submarine was painted pink,” said John Doe, a retired naval officer. “It was too absurd and it became a joke. Since then, black has been the go-to color.”

Modern Considerations for Submarine Colors

Today, the main reason for black coating is to enhance visibility from the air. Submarines frequently transit in shallow coastal waters, where the color of the water can heavily influence their visibility. Moreover, black boats are easier and faster to maintain, as there is no need for specialized camo paints.

According to the U.S. Navy, items like red paint under the waterline also play crucial roles. This paint not only covers up rust but also has a higher level of zinc to slow down hull corrosion. However, these specialized paints are only available within the military, so ordinary submarines are most often painted black.

Submarines That Depart from the Black Norm

Not all submarines adhere to the black color norm. In fact, certain submarines are painted in colors that help maintain a low sonar signature. These include anechoic tiles, which absorb sonar waves, and other specialized paints to minimize their acoustic footprint.

It's particularly noteworthy that certain nations, such as North Korea, Iran, and Israel, paint their submarines green. This is because the green color helps them blend in with the green weed-covered sea floors of clear, shallow coastal waters. The coloration provides crucial camouflage against aerial anti-submarine aircraft.

Examples of Green-Painted Submarines

North Korean 'Romeo' Submarine Iranian Submarines Israeli Dolphin Submarine

Conclusion

The black color on submarines has evolved from practical necessities to an almost ritualistic norm. However, the need for alternative colors in specific environments has led to the development of other color schemes, particularly anechoic tiles and green paint. As technology continues to evolve, the color and design of submarines will undoubtedly continue to adapt to meet ever-changing operational needs.

For those interested in the technical and tactical aspects of submarine coloration, joining the navy or a specialized defense research team would provide in-depth insights into the complexities of this essential aspect of submarine operation.