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EVA – survey vessel

  • Eva’ is a purpose-built vessel ideal for near-shore and inshore survey work of canals, lakes, reservoirs, rivers and estuaries offering the following advantages
  • Transportable by car on a road trailer to any destination
  • A max speed of 24knots reduces the passage times required
  • Large wheel house provides ideal environment for Survey equipment
  • Vessel is capable of operating in water depths as little as 0.9metres
  • Vessel and survey can be operated by one man

Download datasheet (pdf)

Data:

Surveys are primarily undertaken with an array of echo-sounders and survey-grade GPS position fixing equipment. In addition to this Sub-Bottom Profiling, Sector Scanning and SideScan sonar techniques can be employed to provide a fuller picture of the bed surface and sub-surface. Continuously logging tide gauges provide tidal corrections and current meters record direction and strength of flow.

 

Equipment

Vessel name Eva
Type Inshore Survey
Classification DnV+1A1-ICE C, EO, HELDK
Call sign Eva
Built/rebuilt 1982/1989/1993
Length overall 6,9m
Breadth moulded 2,4m
Draught loaded 0,5m
Weight 1200kgs
Speed 24 knots
Aft Deck 2m x 2m
Engine 50hp 4 stroke outboard
Fuel capacity 0,9m3
Electrical power 1 generator.
Navigation aids: Satellite Furuno NX500
Radar Decca Bridge master; Decca RM 916C; Decca TM 1226
Gyro Sperry Mk23
Communications: VHF 2x Sailor RT 143; Motorola MX1000 handheld
Accommodation: 1 large wheel house
Survey systems: Positioning Starfix MN8 DGPSVRU: Seatex MRU-5, Datawell HIPPY 120C; Acoustic: Simrad HPR 309T; Streamer, source & tailbuoy by HPR (optional DGPS for tailbuoy)
Sensors Singlebeam echo sounder: Simrad EM1000; Sidescan: EG&G 272-TD with 260 TH recorder; Deeptow boomer: Huntec. Max output 540 joule; Subtow boomer: EG&G 230 Uniboom; Echo sounder: Simrad EA 501P, 38 & 200kHz; Mini sleeve gun: 10cu.in. with waveshape kit; Mini water gun: Sodera 15cu.in.;Hydrophone streamers: Benthos, 10 h/phones, 3m; Fjord Instruments, 24 h/phones, 15m; Graphic recorders: 3 x Dowty; TVG: 2 x TSS; TVF: 2 x Chi; swell filter: 2 x TSS; Digital recording: G-LOG for simultaneous digital processing of sidescan, boomer/sparker, mini-sleeve gun; UMEL 2m; Grab: Shipek; SVP: AML SVP-16, 1000m depth

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