Timothy is complaining about having to pay nav charges because he puts I in the flight plan when flying non-airways from Biggin to Edinburgh while the only bit of IMC flying will be done during the first minute.
Why on earth is this guy filing a flight plan? - none of the LARS units and the London FIR person will not get a copy (unlesss he addresses it directly and then they will probably ignore it).
Book out from Biggin IFR. Talk to whoever one likes enroute just like any other VFR flight and make a VFR clearance request to Edinburgh. If the fog is only 500ft deep there will be no need for a radar service from Thames.
Thus - no flight plan - no enroute nav charges. and a legal flight to boot.
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Chilli,
How does the pilot find his way legally from Plymouth to Prestwick? The Volmet is available on the ground in Prestwick so no doubt it is available mush further away as 5000ft plus!
Regards,
DFC