CUVX Design Report - the AOE home page - Virginia Tech

CUVX Design – VT Team 2 Page 81Table 45. Full Load Trim and Stability SummaryVessel Displacement and Centers of GravityItemWeightMT VCG - m LCG - m - FP TCG - mFSmomm - MTLightship 24393 11.41 105.7 0Constant 0 0 106.5 0 0Misc. Weight 2361 16.58 125.791 0.269S 0Aircraft Fuel 1529 3.23 94.308 0 8403Propulsion Fuel 1818 2.335 104.635 0 9950Comp. Fuel/Ballast 0 0 106.5 0 0Potable Water 437 2.95 94.493 0 0Clean Ballast 149 5.077 115.505 4.747P 3596TOTALS 30687 10.712 106.503 0.002P 21949Stability CalculationTrim CalculationKMt 14.604 m LCF Draft 7.119 mVCG 10.712 m LCB (even keel) 106.3 m - AFTGMt 3.893 m LCF 114.936 m - AFTF.S. Correction 0.715 m MT1cm 696 m - MT/cmGMt Corrected 3.177 m Trim 0.089 m - AFTProp. Immersion 135 %List0.04 Deg. - PORTDraftsA.P.7.16 mM.S.7.116 mF.P.7.071 mStrength CalculationShear Force at 180 m - FP1522 MTBending Moment at 123 m - FP86421 m - MT [HOG]4.11.1 Intact StabilityIn each condition, trim, stability, righting arm data and strength are calculated. All conditions are assessedusing DDS 079-1 stability standards for beam winds with rolling. For satisfactory intact stability two criteria mustbe met: (1) the heeling arm at the intersection of the righting arm and heeling arm curves must not be greater thansix-tenths of the maximum righting arm; (2) the area under the righting arm curve and above the heeling arm curve(A1) must not be less than 1.4 times the area under the heeling arm curve and above the righting arm curve (A2).Figure 73 and Table 46 describe the righting arm and wind heeling arm curve and data for the minimumoperating condition.Figure 73. Righting Arm (GZ) and Heeling Arm Curve for Minop ConditionTable 46. Righting Arm (GZ) and Heeling Arm Data for Minop ConditionBeam Wind with Rolling Stability Evaluation (per US Navy DDS079-1)Wind Heeling Arm Lw 0.302 m Displacement 30259 MTMaximum Righting Arm 1.221 m GMt (corrected) 3.166 mCapsizing Area A2 0.3 m-rad Mean Draft 7.039 mRighting Area A1 0.7 m-rad Roll Angle 25.0 degWind Pressure Factor 0.0035 Angle at Intercept 60.0 degWind Pressure 0.1709 MT/m2 Wind Heel Arm Lw 0.302 mWind Velocity 100 knts Wind Heel Angle 5.1 degProjected Sail Area 3993.8 m2 Maximum GZ 1.221 mVertical Arm 17.016 m ABL Angle at Maximum GZ 35.3 degHeeling Arm at 0 deg 0.304