Re: Flying from Fairoaks - inside Heathrow CTZ
As HD says - it is normally fairly easy.
There are some fairly good land marks that will always keep you safe (even if outside the LFA)
DON'T GO NORTH OF THE M3!
DON'T GO EAST OF THE M25!
(obviously you should should stay in the LFA anyway which will keep you clear)
DON'T GO towards Bracknell or anywhere in the zone until good 2-way with 125.62 and have been identified as you will of course be SVFR and there are helicopters routeing to the EAST of the M25 over Brooklands and down the M3.
Chevvron needs to chip in with the Farnborough stuff, but if you are plannig to work LF LARS on 125.25 squawk 0457 which is the conspicuity code leaving Fairoaks towards Knaphill not above 1400. They will ident you with another squawk.
Good luck - not that difficult really. But just know who to call if you are unsure at any time. Doesn't take much for you to go north and stop heathrow traffic and definite paperwork!
Somewhat shocking that is being preached by instructors to turn off the Mode C "in case you screw up". Perhaps he should spend more time teaching how not to screw up. If you do go massively above the level, we may phone Fairoaks and mention it - more about education than bollocking (you may not know what you have done wrong)