Gordon wrote:
You have run aground. Your boat draws 6 feet when upright.
You think you can heel your boat 10 degrees by kedging with an anchor.
How much is is this going to reduce your draft?

Now, your toerail is underwater at 30 degrees of heel.
What will your draft be now?
g

Depends on the boat (shape of hull, beam, etc.) Best to try it and then
see if it works.