IACS Hull Form Tolerance Calculator

Based on IACS Req. 2004 for Hull Form Dependent Parameters

Developed by Hrithin

Hull Form Parameters (10+ Rows)

Compartment Parameters (5+ Rows)

Trim & Stability

Enter Base (original) and Applicant's (new) values for each parameter at different drafts. The calculator will check compliance with IACS tolerance requirements.

Row	Draft (m)	Breadth of WL (m)	Displacement (t)		LCB from AP (m)		KB (m)		TCB (m)		LCF from AP (m)		MTCcm		KMT (m)		KML (m)
Row	Draft (m)	Breadth of WL (m)	Base	Applicant's	Base	Applicant's	Base	Applicant's	Base	Applicant's	Base	Applicant's	Base	Applicant's	Base	Applicant's	Base	Applicant's

Row	Draft (m)	Parameter	Base Value	Applicant's Value	Difference	% Difference	IACS Check	Status

Enter compartment parameters for both Base and Applicant's models at different soundings. The calculator will verify compliance with IACS compartment tolerance requirements.

Row	Sounding (m)	Volume or DWt		LCG from AP (m)		VCG (m)		TCG (m)		Free Surface Moment		Shifting Moment		Level of Contents
Row	Sounding (m)	Base	Applicant's	Base	Applicant's	Base	Applicant's	Base	Applicant's	Base	Applicant's	Base	Applicant's	Base	Applicant's

Row	Sounding (m)	Parameter	Base Value	Applicant's Value	Difference	% Difference	IACS Check	Status

Enter trim and stability parameters for both Base and Applicant's models. The calculator will verify compliance with IACS stability tolerance requirements.

Parameter	Base Value	Applicant's Value	Unit
Forward Draft			m
Aft Draft			m
Mean Draft			m
GMt			m
GZ			m
Downflooding Angle			deg
Equilibrium Angle			deg
Waterline Distance			m
GZ Curve Area			m·rad

Parameter	Base Value	Applicant's Value	Difference	% Difference	IACS Check	Status