Conventional Oven Or Circotherm

[mats01_99]

Hi all. Bit of an inexperienced cook here!, I have a 5.5kg Turkey, could anybody advise whether to cook in the conventional oven or on circotherm please (Neff oven), also for how long?!!(not very prepared this year!!) Thank you

[mats01_99]

Also, should I cook it breast side down!

[Buenchico]

The British Turkey Information Service recommends cooking for 3h 20m in a conventional oven at 180C (or in a fan oven at 170C), seam side down:
http://www.britishturkey.co.uk/recipes/classic-roast-british-turkey-with-all-the-trimmings.html
and
http://www.britishturkey.co.uk/cooking/cooking-calculators.html

[EDDIE51]

I always cook turkey breast side down.