Happusan Tunnel Heliport
Daylight today(Aug 30, 2026, local time)
About 13h 3m 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 Happusan Tunnel Heliport
Happusan Tunnel Heliport is a heliport in Saku, Japan. It sits at an elevation of 3,031 ft (924 m). It observes Asia/Tokyo local time. The nearest airport is Kirigamine Gliderport (JP-0471), about 22.5 nm to the wsw.
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 Happusan Tunnel Heliport.
Frequently asked questions
Where is Happusan Tunnel Heliport located?
Happusan Tunnel Heliport is heliport located in Saku, Japan, at an elevation of 3,031 ft (924 m).
What time zone is Happusan Tunnel Heliport in?
Happusan Tunnel Heliport is in the Asia/Tokyo time zone (UTC+09:00).
What is the magnetic variation at Happusan Tunnel Heliport?
The magnetic variation (declination) at Happusan 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 Happusan Tunnel Heliport?
The nearest airport to Happusan Tunnel Heliport is Kirigamine Gliderport (JP-0471), about 22.5 nm to the wsw, followed by Nagano City Gliderport and Kamisato Gliderport.
Is the information on this page suitable for flight planning?
No. Happusan Tunnel Heliport data here is for reference and training only — not for navigation. Always consult official sources and current charts before any flight.