balance by cuiliqing

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									                    Moment Study for the Glen-L Hot Rod                       02-OCT-2007

                                          Inboard v-drive configuration
                                                                                            Distance from CB
                                                               Inches Dec. feet Pounds      Inches Dec. feet
CB 3" forward of frame # 3 @ 67" from transom                     67.00    5.58
CG of motor 3" forward of frame #2 @ 45" from transom             45.00    3.75               22.00       1.83
CG of passengers @ 90" from transom                               90.00    7.50               23.00       1.92
CG of fuel tanks @ 72" from transom                               72.00    6.00                5.00       0.42
Weight of motor and transmission (pounds)                                        1000.00
Weight of two passegers (2 x 175 pounds)                                          350.00
Weight of gas tanks (2 x 12 gallon tanks )                                        202.00

                                     Moments ( weight X distance from CB )
                                                            Weight              Distance              Moment
Engine                                                       1000.00     *           1.83     =        1833.33
Passengers                                                    350.00     *           1.92     =         670.83
Fuel                                                          202.00     *           0.42     =          84.17

Engine moment - (passenger + fuel moments)                      1833.33   -       755.00      =        1078.33
       Additional weight ( moment / distance to CB )            1078.33   /         1.92      =         562.61


                                                Outboard configuration
                                                                                            Distance from CB
                                                               Inches Dec. feet Pounds      Inches Dec. feet
CB 3" forward of frame # 3 @ 67" from transom                     67.00    5.58
CG of motor at 16" aft of transom                                 83.00    6.92               83.00       6.92
CG of passengers @ 90" from transom                               90.00    7.50               23.00       1.92
CG of fuel tanks @ 72" from transom                               72.00    6.00                5.00       0.42
Weight of motor and transmission (pounds)                                         350.00
Weight of two passegers (2 x 175 pounds)                                          350.00
Weight of gas tanks (2 x 12 gallon tanks )                                        202.00

                                     Moments ( weight X distance from CB )
                                                            Weight              Distance              Moment
Engine                                                        350.00     *           6.92     =        2420.83
Passengers                                                    350.00     *           1.92     =         670.83
Fuel                                                          202.00     *           0.42     =          84.17

Engine moment - (passenger + fuel moments)                      2420.83   -       755.00      =        1665.83
       Additional weight ( moment / distance to CB )            1665.83   /         1.92      =         869.13

          Weight difference ( Inboard - Outboard)                306.52

								
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