The GPS approach allows to 503ft above Lands End airfield currently, its on a 6 month trial at these heights, after this 250ft is taken off the DH that’ll put it at 253ft above airfield height. RVR being a copter approach would be 1000m (500m less than FW and 500m less than VFR for PH). Further lighting enhancements would reduce it to 750m on a Copter approach (750m better than PH).
Cloud height therefore 610ft at Lands End or 600ft at PH but RVR at 1000m or 750m at Lands End, 1500m at PH.
Based on the weather data used from 2016, only 12 days would have been ‘unflyable’ for the helicopter due to Lands End Weather a further 12 due to fog on the Isles of Scilly.
Previous benefits of the Heliport over Lands End are based on a VFR Helicopter operation at sea level against a VFR FW operation at an elevated airport. Helicopter IFR at an elevated airport vs Helicopter VFR at sea level (39ft elevation to be exact) is a different matter.
The ‘propaganda’ campaign for PH is very impressive that can’t be argued. For example: AW139 operating at 6400kg for CAT A ops to and from non-elevated helipads (Tresco and PH) would be closer to 12 pax with luggage rather than 15. Or 15 pax with no luggage.
It appears very much as not letting the facts ruin a good story.