apike001....Ok, I submit that I may have missed the gist of how technology marches along... and that we are further along in some areas than most know.. or are allowed to know... And certainly the Hayausa embodies some of that tech gain. Apike001, you mentioned a bit more boost and duct tape... I agree... though I believe the truth in reaching 300 mph on a sit-up Busa is just beyond duct tape ... CLOSER to duct tape than a streamliner though. But still in-between duct tape and a steamliner. Make a new class... an OPEN PARTIAL STREAMLINER... Check out the June 1999 edition of Cycle World pp40-41 and look at the 1956 MotoGuzzi with its "dust bin fairing... IT's cd was .44. (Yes its crude looking, but you could improve on it !) Now update that and do it do a Busa. The two main goals would be to enshroud the entire front wheel with a frame mounted fairing and tear drop the rear of the bike with a larger bubble than it comes with stock and one that bulges out on the rear sides with wind vanes to keep the aft body slip-stream as laminar as possible (where the passenger seat is and where the passengers legs would be) The Farrari Testorrossa has these horizonal wind generators or slats aft of the rear wheels to smooth out the flow)... Keep it sit-up and make it still resemble the Hayabusa shape and bodywork. If you can get the cd down to a .35 - .37 range or so, then the power required for 250 now, would get you in the 300 area. You would need to keep the aerodynamic center of pressure behind the front wheel axle and wind-tunnel design it to minimize Yaw moments, pitch moments, and keep a slightly negative lift fore and aft even through minor pitching angles. All that would take is one good aerodynamic engineer Or myself, and the funding for wind tunnel testing. I was actually going to build such a vehicle that was loosely based on a machine at Epcot Center known as the "Lean machine", which had three wheels. I went to Parks Aeronautical School near St. Louis, found a Student working on his Master's thesis, and was able to give him a project using an "open streamliner" design concept. We successfully tested clay models and redesigned from a basic design then made dozens of smaller body panel modifications to minimize the yaw moments, and especially the desire to have slight negative lift fore and aft through a range of positive and negative pitch angles. The final design had a cd of .22 enclosed and .36 open. But then that's as far as I got. I still have the clay models... But the time, and funding to build a real one... not at that point or now. The student I sold got an A on his thesis and I got a wind tunnel costing hundreds of dollars per hour just for equipment use for free. I've thought about the project from time to time, but I just have not thought about it enough to actually begin persuit of such a task. At this point, if it became my job, I'd probably love it.
