ICH10R

The ICH10R designation refers to a specific type of **International Civil Registration** system, primarily used in aviation to identify aircraft with a unique serial number. This system is part of the broader **International Civil Aviation Organization (ICAO)** framework, which standardizes aircraft registration markings globally. The "ICH" prefix is assigned to aircraft registered in **China**, with "10R" indicating a specific subregion or administrative division within the country.

The ICAO aircraft registration system uses a two-letter country code followed by a unique alphanumeric suffix. For China, the country code is "B" (historically), but "ICH" is an older designation that predates the modern ICAO system. The "10R" suffix is part of a regional allocation, where "10" corresponds to the **People’s Republic of China**, and "R" denotes a specific administrative area, such as a province or military region. However, modern Chinese aircraft typically use the "B-" prefix (e.g., B-XXXX) under the ICAO system.

ICH10R was more commonly used in earlier decades, particularly for military or state-owned aircraft. Today, most Chinese-registered aircraft follow the standardized ICAO format. The legacy designation may still appear in older records, databases, or historical documentation, particularly for aircraft that were registered before the widespread adoption of the ICAO system.

The ICAO registration system ensures global consistency in aircraft identification, preventing confusion in air traffic control, aviation databases, and international regulations. While ICH10R is no longer actively assigned, its historical significance remains relevant for aviation historians and researchers studying pre-modern Chinese aircraft registrations.