Built: 1913, Newcastle-upon-Tyne, England

Builders: Swan, Hunter and Wigham Richardson Ltd.

Official Registry Number: 133535

Dimensions:

• Length: 55.7 metres (181'9'')
• Breadth: 10.19 metres (33'7")
• Depth: 5.79 metres (19'1")

Tonnage: 846 gross registered tons

Boats: 2 gasoline survey launches (during some periods, 4)
2 cutters/lifeboats

Crew: 51

Hydrographic staff: 15

Engine: Triple expansion

Cylinder diameters: 43.18 cm (17"), 71.12 cm (28"), 1.17 m (46")
Stroke: 65.58 cm (27")

Horse power: 1715

Top speed: 12.5 knots

Boilers: Scotch, Forced draft

• Working pressure: 185 psi.
• Diameter: 3.41 metres (11'3")
• Length: 3.48 metres (11'6")