KLM to Shetland? Sheesh, where to start?
1) Shetland has a population of only about 20,000. There's no way that would support an Amsterdam service
2) There won't be anything like enough offshore workers on platforms off Shetland who travel there from continental Europe to justify a service direct from Amsterdam
3) Even if there were, the oil companies would want direct control over the schedule so it fed into helicopter flights and could be cancelled/amended at short notice. KLM wouldn't do that.
4) Taking the continent-based workers off the Aberdeen-Scatsta charters and the KLM schedule to Aberdeen would increase the costs of both - oil cos and KLM won't want that
5) Scatsta has one runway with LDA 1155/TODA 1319m - not sure about F70or E170 but tight for any jet apart from maybe Avro RJs. It also has no IAP to runway 06 - requires circling approach with hills all around
Minima for a Cat C are 570ft on 24, 890 on 09
6) Sumburgh has ILS on 27 and various on 09, with minima 267/300ft, plus runway length about 100m more than Scatsta for both t/o and landing.
7) Given the roads, distance from Scatsta to Lerwick vs Sumburgh to Lerwick pretty much 6 and half a doz.
NS