Commenter ZenDraken at my post Stagflation And Inconvenient Debt alerted me to his site Hyperinflation Watch which has this post Hyperinflation Scenarios that you might find of interest. He covers the following scenarios with some estimates.
1. Short Duration: This is the soonest that hyperinflation could realistically hit.What ever happens you can be sure that running up the national debt means that we will be screwed sooner or later, one way or another, when the debt becomes due. Quickly if we get into one of the inflation scenarios. More slowly if we have to pay off the debt or even just support the interest payments.
2. Middle Duration: The "average" time scale scenario
3. Long Duration: Hyperinflation that is years away, but still based on current conditions.