Here's the real life scenario: You have a partial engine failure, engine will only put out say 1,600 rpm for whatever reason. The nearest safe landing area is a ways away (out over the ocean or something). Assuming 1,600 rpm is not enough for you maintain altitude, what airspeed would you fly to get the closest to shore as possible before going in? VX or Vglide?
I can remember some tables we looked at in college which explained how Vx was determined, having something to do with the maximum difference in power or (thrust?) required Vs. Power available. We all know V glide is the intersection on the graph of induced and parasite drag (lowest total drag point).
I'm fairly confident that I know the right answer, but I'm hoping someone here remembers or knows the aerodynamics better than I do and can answer this with an explanation defining the difference in Vx and Vglide.
Hope this isn't too much of a common sense question.