Section 3.10: Site Plans and Technical Data - Rick Neufeld Comments

Northern Gateway Pipelines Inc.
Section 3.10: Site Plans and Technical Data
Table of Contents
4 Design, Operating and Safety Parameters
4.1 Design Vessels
The characteristics of the design tanker vessels to be accommodated at either tanker berth are given in
Table 4-1. The data shown are for the largest available VLCC, the smallest available Aframax and an
average sized Suezmax tanker. For a detailed description of ship specifications and characteristics refer to
TERMPOL Study 3.9 – Ship Specifications.
Table 4-1 Design Tanker Vessel Characteristics
Vessel Particulars Oil and Condensate Oil
Vessel Class
Aframax
(Design
Minimum)
Suezmax
(Average)
VLCC
(Design
Maximum)
DWT, tonnes 80,000 160,000 320,000
Displacement, tonnes 96,000 185,000 365,000
LOA, metres 220.8 274.0 343.7
LBP, metres 210 265.0 328.0
Beam, metres 32.2 48.0 70.0
Moulded Depth, metres 18.6 23.1 30.5
Loaded Draft, metres 11.6 17.0 23.1
Ballast Draft, metres 6.9 8.0 10.0
Transverse Wind Area at Loaded
Draft (m 2 )
Longitudinal Wind Area at Loaded
Draft (m 2 )
Transverse Wind Area at Ballasted
Draft (m 2 )
Longitudinal Wind Area at Ballasted
Draft (m 2 )
2800 3,600 3,500
900 1,200 1,300
4700 6,000 7,700
1200 1,600 2,000
Hull Type Double Double Double
Capacity, bbl 0.5 Million 1.0 Million 2.2 Million
4.2 Underkeel Clearance Requirements
The berth layouts are based on providing a minimum underkeel clearance of 15 percent of the largest
draft. Due to the steeply-sloping foreshore at the berth locations, the actual amount of underkeel clearance
exceeds this minimum. Underkeel clearance is discussed further in TERMPOL Study 3.6, Special
Underkeel Clearance.
January 20, 2010 FINAL - Rev. 0 Page 4-1