Tenko Airfield

Primarily economic reasons. The airfield was a private facility, intended to be part of a much larger, ambitious leisure and entertainment complex called 'Tenko Land' or 'Tenko Park'. This project, spearheaded by the famous Japanese illusionist Princess Tenko, ultimately failed to secure sufficient funding and did not materialize as planned. Without the larger resort to support it, the airfield became financially unsustainable and was abandoned.

The site is now a large, open, public-access grassy area located on the riverbed of the Seta River. It is commonly known by locals as 'Tenko Park' (天功パーク). The long, flat expanse of the former runway is still clearly identifiable. The land is managed by the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) and is used for a variety of recreational purposes, including dog walking, picnicking, flying drones and radio-controlled model aircraft, and occasionally for local events. It is not maintained as an aviation facility.

Tenko Airfield was a small, private grass airstrip operational for a relatively short period, primarily in the early to mid-1990s. Its historical significance is not in major aviation events, but in its unique origin and association with a celebrity. It was built to serve general aviation, specifically light aircraft (like Cessnas), ultralights, and a local flying club. The airfield's main claim to fame was its connection to Princess Tenko's grand but unrealized vision for an entertainment resort in Otsu. The ICAO code 'JP-2103' is an unofficial identifier, likely assigned by flight simulator communities, as the field was never a major public airport with an official ICAO code (which would start with 'RJ' for Japan).

There are no known plans or prospects for reopening the site as an airfield. The land is now designated and managed as public recreational river park land. Given this official status, the lack of any commercial or private demand, and the development in the surrounding areas over the past decades, a return to aviation use is considered highly improbable.