I dropped two in the deep fryer yesterday.
I've been doing this for four years now.
I get the Tony C' injectible marinades, one Garlic Herb and one Creole Butter. I do one bird with each since not everyone likes the creole flavor. Heat the oil to about 375. When I drop the bird, the oil temp drops to 325 and I slowly bring it back up to about 350.
Three minutes/# of turkey works out really well.
Safety tips:
Put turkey in kettle the night before and fill with water to cover turkey. Remove turkey and let it drain. Note water level. This is the level you will use to fill your kettle with peanut oil.
Do this outside. Not in the garage, not on your deck, etc.
I put on an old leather jacket and leather gloves, hot oil hurts if you get it on your skin.
The turkey should be thawed and as dry as possible. You are going to slowly lower the turkey into the kettle.
Fire extinguisher, good idea to have one.
I did two 14# turkeys in under two hours yesterday if you start counting time after the oil is up to temperature. I had time to put together a green bean caserole and a sweet potato caserole while waiting for my oil to heat up.
You are probably better off with a 12# turkey, but I can get a 14# bird in my kettle.
HTH