Thanks fellas for all the replies. I am trying all. The Aircraft (BAC 1-11's) are from David Maltby and I am going by his BAC1-11 flying guide. Getting up a little earlier now, but still leaving tyre marks on Weston- Super- Mare beach and dead donkeys in my wake, if I use Bristol 09

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Anish..small point, what does Airfield altitude have to do with it?
Phil509...added a fair bit of thrust but could not tell the difference ...wary on how much to put in as I want to take off at the same time as my engines!!!
Regards to all,
Tony C