FOR LIFTING A VESSEL USING DOUBLE BASKET HITCHES AND TWO LONGITUDINAL SPREADER BARS v0.1

COMPANY: PROJECT:

Feet/Kips Meters/Metric Tons
Total load, includes the weight of vessel, trays, insulation, piping, rigging, etc
Span, the distance between the slings measured at the bottom of the vessel
Vessel O.D., measured from centerline to centerline of lift slings
Sling length, measured from the end of the spreader bar down to the shell
Total sling length, measured from the hook down around the shell and back to the hook

OUTPUT:
Longitudinal sling angle, degrees
Distance from the hook down to the center of the spreader bar
Sling length from hook down to end of the spreader bar
Sling contact length above the vessel centerline
Sling tangency angle, degrees
Sling contact length below the vessel centerline
Vertical height from the hook down to the bottom of the vessel
Compression force in each spreader bar. Does not include impact
Sling Tension above the spreader bars
Sling Tension below the spreader bars

Note: