10 DME ARC
Public Service Obligation subsidies are paid by the Republic's govt for routes from DUB to KIR, GWY, SXL, CFN and LDY. All but LDY are Aer Arann licences, the latter Loganairs.
They are payable where no commercial operator is already flying the route.
In the Strasbourg case, the AF subsidiary claimed they were already on the route and the subsidy had the effect of pushing them off.
As for Belfast, it sounds like a job for a Jetmagic ERJ style operation, though it may all end in tears as they prove the routes and then the big boys snaffle the pax!