2010 Jayco Greyhawk 31FK, 2010 Jayco Greyhawk 31FK Are you ready to answer the call of the open road and to do it with all the comforts and conveniences of home? Then you re ready for the Jayco Greyhawk Class C motorhome. Greyhawk features more high-end features and amenities than anything else in its price range. While the decision to buy a motorhome is a big step, when you re ready, Greyhawk makes it an easy one.