750' (San Bernardino)
48 score XC / 100 · Estados Unidos · despegue a 753 m
Orientaciones del despegue
Verde = orientación buena · Amarillo = posible · Gris = no apta
Por qué este sitio tiene potencial térmico
| Factor | Valor | Interpretación |
|---|---|---|
| Densidad de hotspots (5 km) | 12 | Alta |
| Probabilidad media térmica | 0.89 | Basado en miles de vuelos IGC agregados |
| Orientación al sol | 0.00 | Ladera orientada al sur en hemisferio norte |
| Histórico de vuelos propios | 0.00 | Térmicas detectadas en IGC de la plataforma |
Descripción del despegue
The 750' launch (~2500ft MSL) is so named because it is 750ft vertically above the Andy Jackson Airpark LZ (same typical LZ as Marshall). It is a less popular alternative to the Marshall launch but has some key advantages: (1) It is readily accessible from Andy Jackson via the dirt 2N40 forest service road (~10 min, moderate clearance recommended) or a 0.6mi hike on a foottrail (~30min, steep). (2) Being lower elevation, cloud cover is less of an issue than at Marshall. (3) The quick access and quick flights in non-thermic conditions are well suited for beginners (and others) to rack up a large number of flights in a short time frame (such as four flights before noon). (4) On particularly thermic days it is possible for a launch from 750' to gain altitude up to and in excess of Marshall, defeating the need for a shuttle. Hanggliders do not seem to use this launch. The launch is a 50'x80' dirt and gravel patch sloping SSW at the south end of the large pull out. A streamer on a pole gives some indication of wind. The launch area is less forgiving than Marshall (but again suited for beginners). Non-thermic flights are about 3-4min to AJX. Site is maintained by the Crestline Soaring Society. See links below for site protocols and access.
Reglas / notas
http://www.crestlinesoaring.org/siteProtocols http://www.crestlinesoaring.org/instruction/PGsignoff
Comentarios de pilotos
Be sure and get a site briefing from a local. Non-CSS-members have to sign a waiver and pay a daily fee of 10USD! USHPA membership required! > see: http://www.crestlinesoaring.org/siteProtocols
Sitios cercanos
Marshall (San Bernardino) (69) · Crestline (San Bernardino) (68) · Rubidoux - The Rock (8) · Mentone (53) · Ord (39) · Elsinore (49)