If someone has already created this, please post a link. I looked.  Just a straight speed challenge: How fast can a prop driven electric craft move? Rules:  Craft must be ELECTRICALLY powered.  - This is for standardization.  What goes up must come down, in one piece. No dropping parts.  Your craft must land in one piece. I understand you might be a long way out over water or very high after completing your speed run, so it is acceptable to just fly around KSC and land t