3.2.1 In addition
to cases where direct calculations are specifically required by the
Rules for scantling assessment or confirmation purposes, LR will consider
direct calculations for the derivation of scantlings as an alternative
and equivalent to those derived by Rule formulae. Where calculation
procedures other than those available within ShipRight are employed,
the assumptions made and the calculation procedure used are to be
submitted for appraisal. The calculations are to be submitted for
approval.