My ground tackle calculations (based on Hinz Complete Book of Anchoring) produce chain and rope sizing that is consistent with the recommendations of the mainstream anchor manufacturers.
It's a different story however when it comes anchor sizing.
I've taken careful measurements of the boat windage with a 30 degree skew, displacement, wave surge, aerodynamic load, etc., for a working anchor (30 knot wind) and the calculations come out to anchor sizing of half the weight of the mainstream companies.
They only compare when I calculate for force 11 storms.
So why the discrepancy, are the mfg.'s just being conservative, trying to sell anchors?
It's a different story however when it comes anchor sizing.
I've taken careful measurements of the boat windage with a 30 degree skew, displacement, wave surge, aerodynamic load, etc., for a working anchor (30 knot wind) and the calculations come out to anchor sizing of half the weight of the mainstream companies.
They only compare when I calculate for force 11 storms.
So why the discrepancy, are the mfg.'s just being conservative, trying to sell anchors?