Oyama Tunnel Heliport
Daylight today(Sep 1, 2026, local time)
About 12h 59m of daylight. Civil twilight (dawn/dusk) approximates the FAA definition of night for logging and currency. Times are computed and approximate — verify with official sources.
About Oyama Tunnel Heliport
Oyama Tunnel Heliport is a heliport in Annaka, Japan. It sits at an elevation of 2,575 ft (785 m). It observes Asia/Tokyo local time. The nearest airport is Kamisato Gliderport (JP-0400), about 23.3 nm to the e.
Summary generated from this airport’s structured data — reference only.
Live traffic nearby
Aircraft currently within ~40 nm, from live ADS-B. Positions are approximately real-time — not for navigation.
Live ADS-B by adsb.lol & the OpenSky Network. Not for navigation.
Map
Runway centrelines, navaids and overlapping airspace. Tiles © OpenStreetMap contributors. Reference only — not for navigation.
Runways (0)
No runway data recorded for this airport.
Airspace in this area(4)
| Name | Class | Type | Floor | Ceiling |
|---|---|---|---|---|
| YOKOTA ACA-1 | Class E | Controlled | 700 ft MSL | FL230 |
| JSDF H-1A | Special use | Danger | GND | FL230 |
| JSDF H-1B | Special use | Danger | 10000 ft MSL | FL230 |
| JSDF 3-1 | Special use | Danger | GND | 10000 ft MSL |
Approximate bounding-box match from OpenAIP · all Japan airspace. Reference only — consult official charts for exact boundaries and status.
Nearby airports
Great-circle distance and true bearing from Oyama Tunnel Heliport.
Frequently asked questions
Where is Oyama Tunnel Heliport located?
Oyama Tunnel Heliport is heliport located in Annaka, Japan, at an elevation of 2,575 ft (785 m).
What time zone is Oyama Tunnel Heliport in?
Oyama Tunnel Heliport is in the Asia/Tokyo time zone (UTC+09:00).
What is the magnetic variation at Oyama Tunnel Heliport?
The magnetic variation (declination) at Oyama Tunnel Heliport is approximately 8.3° W, per the World Magnetic Model. Variation changes slowly over time — always use the current value charted for navigation.
What airports are near Oyama Tunnel Heliport?
The nearest airport to Oyama Tunnel Heliport is Kamisato Gliderport (JP-0400), about 23.3 nm to the e, followed by Isesaki Auxiliary Airfield and Kirigamine Gliderport.
Is the information on this page suitable for flight planning?
No. Oyama Tunnel Heliport data here is for reference and training only — not for navigation. Always consult official sources and current charts before any flight.