B737-800
Other / Unknown
Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Weight And Balance
Flight Crew Became Reoriented
Aircraft; Company Policy; Human Factors; Procedure
On takeoff roll prior to V1 the nose wheel started to float off the ground.  The First Officer who was flying reacted quickly and applied forward pressure on the yoke; then rotated at or near VR.  At some point he also trimmed  about two units nose down to correct the problem.  The trim was still in the green band.  Enroute we contacted Dispatch/Load Planner and got a print out of the exact distribution of cargo.  The numbers were very close to the planned cargo from the load sheet.  We made the assumption that the aircraft was truly loaded as the print out indicated.  Who really knows?   We had a very light passenger load which can cause an aft CG issue on the 737.  This; in theory; should also been built into the weight and balance plan assuming passengers sit in their assigned seats.  I'm willing to bet the marketing folks didn't consider this issue when deciding to charge more for the front of the aircraft.  I had the flight attendants move about 10 passengers forward in the cabin.  At no time was the aircraft out of safe CG range just farther aft than expected.  When I landed (on a weekend) I called the Chief Pilot on call.  My intent was to get the word to the station folks to make them aware and hopefully remedy the issue.  No one answered the phone and no voice mail was offered.
B737-800 Captain as the NFP reports the aircraft nose beginning to lift prior to V1.  The flying First Officer trims the nose down and rotates at Vr.  The trim setting remained in the green band the entire time.