I love that I already have 7 grills my wife would S*** thays great. I might just try it. i have done some strange things to cook food but that tops it. Glad to see you use wood I dont do gas thats for heating the house not cooking on a grill.
What you need is a varible pitch prop so you can adjust the trust in any direction. Thats what we use in the Tug Boat industry. And the same thing works with air. Also you might have a little to much time on your hands. LOL Tom