Shoalbuster Brutus

Exceptionally strong vessel of 60 tonnes bollard pull with a shallow draft of 2.40 metres at 50% capacity.
The Shoalbuster Brutus is now being build by shipyard Damen. Delivery of the Brutus is scheduled for spring 2020.

Exceptionally Strong

Shoalbuster Brutus

HermanSR ordered the first DP2 Shoalbuster ever built, and it will be built at Damen Hardinxveld. We expect is sheduled for spring 2020.

With 35 metres in length, nearly 14 metres wide and with a free deck space of 150m2, the Shoalbuster 3514 will be a substantial working platform. Her SD (Shallow Draft) notation is derived from her exceptionally shallow draft of 2.70 metres at full tank capacity and just 2.40 metres at 50%. Among the many roles that this first DP2 Shoalbuster will be capable of fulfilling will be anchor handling, for which she will have an open stern complete with roller, and towage. With 60 tonnes of bollard pull she will be a powerful and effective towage asset.

Four Caterpillar C32 ACERT engines will deliver a total of 3,879 bkW (5,280 hp) to four 1900mm nozzles, an arrangement that contributes significantly to her shallow-waters capability. The vessel will carry a crew of five to six mariners, but she will have accommodation for up to 22 personnel, allowing her to support projects both ship-based and elsewhere.

Herman Sr. intends to use its Shoalbuster 3514 for wind farm support and maintenance, where its shallow draft will allow it to work both near as well as offshore. Its vessel will have a DP2 Kongsberg dynamic positioning system including ancillary thrusters to ensure precision position-holding on the open sea as well in the vicinity of turbines and other structures. Its open stern will also make the vessel suitable for cable-laying operations and a sturdy aft deck knuckle boom crane will be capable of lifting a wide assortment of cargo and equipment.
Jack van Dodewaard, managing director of Herman Sr, commented: “We are very happy to be continuing our more than 70 years of cooperation with the Damen group, in particular with Damen Hardinxveld. That was where in 1947 the first vessel, the HeGeJo with a 77 hp Caterpillar engine, was built for our family. Many more vessels have followed since.

“Our new Shoalbuster 3514 will be the first DP2 vessel in our fleet and will be named Brutus. With a bollard pull of 60 tonnes, we are aiming for a versatile, dynamically positioned vessel, suitable for performing a wide range of works in shallow waters. These will include PLGR, ROV surveys, mass flow, UXO surveys, wind farm support and all the other services that our clients are used to receiving from Herman Sr. BV. With accommodation capable of taking more than 20 people she will also be able to work for extended periods offshore. And of course, she will undertake many other functions such as towage, anchor handling and rig relocations. In addition, the vessel is able to dry out completely for cable handling and other works. We are looking forward in receiving the vessel built to Damen’s high standards, as always.”

“The 3514 represents an appreciable uplift in capability for the Shoalbuster class and is a very special vessel with a wide range of options available,” added Jos van Woerkum, managing director of Damen Shipyards Hardinxveld. “We are very pleased that Herman Sr is the launch client. They have been a longstanding client of Damen for three generations and we greatly appreciate the confidence that they have shown in us over all that time. This will be their fourteenth Damen vessel and at Damen Shipyards Hardinxveld our eleventh order, as well as their ninth and largest Shoalbuster to date. Other expressions of interest that we have received in the 3514 gives us confidence that it will be a successful addition to our offshore support vessel portfolio.”

Delivery of the Brutus is scheduled for spring 2020.


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Specifications of this Workboat


Yard no:
1570 {Damen Shipyards Hardinxveld}
Delivery date:
June 2020
Damen Shoalbuster 3514SD DP2
Basic functions:
Towing, anchor handling , dredge support, offshore wind support, oil & gas support
Bureau Veritas I 3/3 {E} * Offshore support, Hull * MACH, Auth UMS, Cleanship, Green
Nat. Authoritities:
Dutch flag, Unrestricted navigation
Call sign:
I.M.O. No:


35.55 m
14.37 m

Depth at sides:

3.60 m
2.40 m
GT / NT:
499 GT / t.b.a NT

Tank capacities:

Fuel oil:
200.00 m3
Fresh water:
48.00 m3
20.00 m3
Grey water:
20.00 m3
Dirty oil:
4.80 m3
Lub. oil:
5.80 m3
Hydraulic oil:
1.50 m3
5.80 m3
Urea (IMO Tier III):
10.00 m3


Bollard pull:
60 ton (m)
13.0 knots

Propulsion system:

Main engines:
4 x Cat C32 TTA SCAC (IMO Tier III Hybrid)
Total power:
3876 bkW (5280 bhp) at 1800 rpm
4 x Reintjes WAF 765/7.091:1 Hybrid
4 x Promarin fixed pith propellors
4 x 1900 mm in v.d. Giessen Optima nozzles
2 x 184 kW/ 250 HP
Stern thruster:
1 x 184 kW/ 250 HP
4x fishtail rudders, 60 degrees to each side all rudders are independent controllable
Propulsion system is fully diesel electric-hybrid for fuel efficiency

Auxiliary equipment:

Generator sets:

1x Cat. C 7.1, 147.5 kVA/ 118 ekW
1 x Cat. C 9.3, 321.5 kVA/ 250ekW

Fuel separator
2x Westfalia OTC2 1200l/hr each
Transfer pumps:
Water and fuel: SIHI 50 m3/hr at 1,5 bar
1x Alup SCK 9-8 1200 l/min @ 8 bar
Hydraulic set
Electrical driven with two E-motors 110kW and one 52kW, 60Hz
Fresh water maker
3,8 m3/ 24 hrs
Sewage plant
3 m3 /24 hrs

Deck layout:

2x 550 kg Pool
247.5 m shortlink 24 mm
Deck crane:

HS Marine AKC 220 LHE4 5,5 T @ 20 m

Anchorhandling winch:
100 Ton pull – 160 ton Holding power
Aft Winch:
60 Ton pull – 160 ton Holding power
2x Dromec 12 ton
Hydraulic pins
1 set of anchorhandling pins + wire stopper
Maximum deckload:
10 ton/m2
Free deck space:
200 m2
option for a 40T hydraulic A-frame
4x 20” + 3x 10” in one time
4-point mooring:
2 winches forward/ 2 winches aft


Heated and Air conditioningliving spaces for 21 persons 3x Single cabin 9x double cabin (1x hospital)

Nautical and communication equipment:

According GMDSS:
Area A3
3 x 250 W LED Den Haan
1 x Cassens & Plat, Reflecta 1
Radar system:
2x Furuno FAR-1518BB


2x Kongsberg DPS 110 & 112

2x Furuno FMD3100

1x Intellian V130G

TV Satelite
1x Intellian T100W
Gyro compass
3x Anschuetz compact 22
1x Simrad AP-70
1x Furuno FE 800

Dynamic positioning:

Kongsberg DP2 system
Motion referance unit:
2x Kongsberg MRU-2
Laser reference:
1x Kongsberg SpotTrack
1x Furuno NX-700
1x Furuno FA 170
1x Furuno FS-1570, 150 W.
Inmarsart C:
2x Thrane & Thrane sailor 6110
VHF Radio:
3x Sailor RT6222

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