My new flotation calculations. Going for a bit more than 35 lbs…

Total Length (in) | 72.00 |

Length of square midsection (in) | 26.30 |

Length of remaining section(s) (in) | 45.70 |

Length of nose and tail cone (in) | 22.85 |

General form of nose profile Ax^2 | |

A value (coefficient) | 1.00 |

Form of equation | 1.000 |

X-value given hull profile at y = 24 | 4.78 |

Total outrigger width | 9.56 |

General form of Integral A/3 x^3 | |

Form of integral | 0.33 |

Value of integral from 0 to x-value (inches) | 36.41 |

Area of half of nose cone rectangle (in^2) | 109.23 |

Area of half of the nose cone (in^2) | 72.82 |

Area of one nose cone (or tail cone) (in^2) | 145.64 |

Area of both nose and tail cone (in^2) | 291.27 |

Area of mid section (in^2) | 251.44 |

Total cross section area (birds eye) (in^2) | 542.71 |

Desired volume (ft^3) | 3.00 |

Desired volume (in^3) | 5184.00 |

Required height given volume (in) | 9.55 |

Total weight of water displaced (lbs) | 187.20 |

Total plywood surface area (in^2) | 2460.92 |

Total cross section area of gusset plates (in^2) | 277.07 |

Misc weight – glue/screws/paint (lbs) | 10.00 |

Total volume of surface plywood | 615.23 |

Total volume of gusset plates | 173.17 |

Total plywood volume | 788.40 |

Density of 1/4″ plywood (lbs/ft^3) | 37.40 |

Density of plywood (lbs/in^3) | 0.02 |

Total volume of lengthwise ribs (1/2 a 2″x2″)(in^3) | 324.00 |

Density of ribs (doug fir) (lbs/ft^3) | 32.00 |

Density of doug fir (lbs/in^3) | 0.02 |

Total plywood weight (lbs) | 17.06 |

Total gusset plate weight (lbs) | 3.75 |

Total lengthwise rib weight (lbs) | 6.00 |

Total weight of outrigger (lbs) | 26.81 |

Total weight of water displaced (lbs) | 187.20 |

Total flotation (lbs) | 160.39 |

Flotation at 50% submerged (lbs) | 80.19 |

Flotation at 75% submerged (lbs) | 120.29 |

Flotation at 80% submerged (lbs) | 128.31 |

Flotation at 90% submerged (lbs) | 144.35 |