Does anyone know where on the net i can find maps of the 4 Heathrow inbound holds? Ive looked on Nats but although the STARS are on there im just really only interested in the actual holding patterns overlaid on an Ordanance Survey/roadmap type layout.
I doubt you will find a diagram of the holds overlaid on an OS Explorer/Landranger, but here they are at 250K:
Bear in mind that a hold isn't a pre-defined racetrack in the sky - if you have looked at the STARs you will know that the only defined parameters are the fix, the inbound track, and the leg length (time). The actual track flown over the ground, in particular the outbound leg, will vary with the wind and the aircraft speed.