well i 17 pound turkey will cook for 8 hours if it helps
The roasting time for most meats chicken and turkey is 20mins per pound so for 13 pound it will be 13 x 20 -=260mins 260/60 =4.333hours so the ans to your question is 4hours 20mins approx.
The average amount to cook a 13 pound turkey which is not stuffed is about 3 hours. This is when you use the oven to bake it.
It would take about five hours to cook a 13 pound turkey on normal setting. However if there is time it is worth cooking the turkey on a far lower setting such as gas mark 2 and doing it fr 12 hours to get a more succulent bird.
11-13 minutes per pound if unstuffed. A 13 lb turkey should take approximately 2 1/2 hrs
A 4.3 pound turkey should be cooked in a fryer for at least 13 minutes. The turkey should have an internal temperature of 160 degrees.
Roasting times for whole turkeys Preheat your oven to 160°C (325°F) and use these cooking times to prepare roast turkey that's moist, tender and delicious12 to 16 lb Un Stuffed Turkey 3 ¼ - 3 ½ hrs12 to 16 lb Stuffed Turkey 3 ¾ - 4 hrsTurkey is fully cooked and safe to eat when the meat thermometer reads 77°C or 170°F for an un-stuffed turkey and 82°C or 180°F for a stuffed turkey.
As a rule of thumb you should cook chicken for 20 mins for each pound plus an extra 20 mins, oven temp 190C.
Here is a good resource: http://blog.makezine.com/archive/2006/11/diy_thanksgivin.html
1st and Ten - 1984 A Roast Is a Roast 7-13 was released on: USA: 26 December 1990
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Yes, an 8 pound roast (uncooked weight) should feed 13 people.The roast will loose weight during cooking.Even so it should yield about 7oz to 8oz of cooked meat per person.
it would cost 13% more than last year!