SIR, — Residents bothered by helicopter noise might be interested in an e-petition on the Prime Minister s website at http://petitions.pm.gov.uk/lowflyingnoise/ There is also a report by the London Assembly — if you type in a spin and London Assembly in

SIR, - Residents bothered by helicopter noise might be interested in an e-petition on the Prime Minister's website at http://petitions.pm.gov.uk/lowflyingnoise/

There is also a report by the London Assembly - if you type "in a spin and London Assembly" into a search engine, you will find a link.

Unfortunately Harpenden and other affected Herts residents are on the receiving end of the H5 and H9 helicopter routes out of London - and at the mercy of the CAA's perverse decision to drop the minimum overflying height to 500 feet.

COLIN WEAVER,

Tuffnells Way, Harpenden.