At an approximate guess, with 206 engines, London HEMS can probably land PC1 with 5 pob onto their (roughly sea level) pad, at up to 26 C, with about 1 hours fuel?
On our unit, most UK summer days, our old 206 engines could give us PC1 helipad at full fuel with 3 crew up to about 1000ft. (We'd usually knock off 200lb from max fuel to enable an immediate lift of 1 casualty.) We were never forced by payload to operate to 'clear area' dimensions.