Originally Posted by
luckyrat
I’m really sorry that my fellow professional aviators where as equally helpful……😾
Just to be helpful, chart legends can be found at the link below (for MIL AIP, civil equivelents are available). Can't find a N in a circle though, sure it's not a M?
https://www.aidu.mod.uk/aip/pdf/gen/GEN-2-3.pdf
p.s. after a bit of googling, it appears that there's a
heliport at Frensham Pond Hotel (Frensham Great Pond) so it's probably a H.