HMS Ark Royal to make farewell visit to Tyneside

http://news.bbc.co.uk/local/tyne/hi/front_page/newsid_9196000/9196273.stm
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She’ll have Harrier jets on board which will take off shortly after she leaves the Tyne – how close to the shore can the Harrier jets take off?

What happened to HMS lnvincible?