View allAll Photos Tagged cycloidal
A Cycloid is the curve traced by a point on the rim of a circular wheel as the wheel rolls along a straight line without slipping. Such mathematical shapes can be found in nature and is seen in the Milky Way arch.
This image was captured at Pot Alley Beach in Kalbarri, Western Australia at around midnight on a cold August night. This is a panorama consisting of 40 frames with each frame being 20 seconds long. The entire image took about 20 minutes to capture.
The red rocks, jagged cliffs and winding gorges will take ones breath away by day. But as the sun sets and the stars revealed themselves, one would be treated to some of the best skies ever seen.
Alongside Dales Marine Services at James Watt Dock Greenock.
Vessel Details:- Sandown Class GRP Minehunter Vessel.
Vessel Name:- HMS PEMBROKE M107.
MMSI: - 234625000.
Call Sign:- GCUJ.
Length:- 52.5m
Beam:- 10.9m
Draught:- 2.3m
Builder:- Built in 1997 by Vosper Thronycroft.
Commissioned:- 6th October 1998.
Power Plant:- 2 x Paxman Valenta 6RP200E Diesel Engines.
Propulsion:- Diesel Electric drive, Voith–Schneider cycloidal propellers.
Homeport:- HMNB Clyde, UK
Gross Tonnage:- 433t.
Copyright 2020 Harry Garland, All rights reserved.
Alongside Dales Marine Services at James Watt Dock Greenock.
Vessel Details:- Sandown Class GRP Minehunter Vessel.
Vessel Name:- HMS PEMBROKE M107.
MMSI: - 234625000.
Call Sign:- GCUJ.
Length:- 52.5m
Beam:- 10.9m
Draught:- 2.3m
Builder:- Built in 1997 by Vosper Thronycroft.
Commissioned:- 6th October 1998.
Power Plant:- 2 x Paxman Valenta 6RP200E Diesel Engines.
Propulsion:- Diesel Electric drive, Voith–Schneider cycloidal propellers.
Homeport:- HMNB Clyde, UK
Gross Tonnage:- 433t.
Copyright 2020 Harry Garland, All rights reserved.
Curtis Wharf, Guemes Channel, Anacortes.
Built in 1999, by Dakota Creek Industries of Anacortes, Washington, for Crowley. The first of two Nanuq class tugs built for Crowley by DCI.
Cap Sante. Fidalgo Bay. 9.37 PM PDT. 10 second exposure time.
Lindsey Foss and Garth Foss are Enhanced Tractor Tugs, and were the largest in the world (when built in 1994), featuring Voith Schneider cycloidal propulsion systems. and are specifically designed for tanker escorts.
Fidalgo Bay. Cap Sante - 13 second exposure.
Lindsey Foss and Garth Foss are Enhanced Tractor Tugs, and were the largest in the world (when built in 1994), featuring Voith Schneider cycloidal propulsion systems. and are specifically designed for tanker escorts.
Curtis Wharf, Guemes Channel, Anacortes.
Built in 1999, by Dakota Creek Industries of Anacortes, Washington, for Crowley. The first of two Nanuq class tugs built for Crowley by DCI.
2012. Fidalgo Bay/Padilla Bay from Cap Sante.
Lindsey Foss and Garth Foss are Enhanced Tractor Tugs, and were the largest in the world (when built in 1994), featuring Voith Schneider cycloidal propulsion systems. and are specifically designed for tanker escorts.
2013. Fidalgo Bay/Guemes Channel
Lindsey Foss and Garth Foss are Enhanced Tractor Tugs, and were the largest in the world (when built in 1994), featuring Voith Schneider cycloidal propulsion systems. and are specifically designed for tanker escorts.
'St Faith' Departing Fishbourne, Isle of Wight and turning to head to Portsmouth. Operated by Wightlink.
St Faith is classed as a passenger roro cargo ship. Built in 1990 Cochrane Shipbuilders Ltd, Selby.
3x 850bhp 6-cyl MAN 6ASL25 diesel engines
3x Voith Schneider cycloidal propellers
12.5 knots (23.2 km/h; 14.4 mph)
Capacity:
722 passengers
142 cars
12 lorries
Crew of 12.
One of the navy's shiphandling tugs getting some work done at Point Hope Shipyard. The machinery consists of 2 × Ruston-Paxman diesel engines, 1,800 hp (1,342 kW) and 2 × Voith Schneider cycloidal propellers. The Voith Schneider propellers can be seen in the middle of the hull, below the house; it combines propulsion and steering in one unit. Apologies to the maritime professionals but I describe them as a pair of blenders with variable pitch blades! For a more technical narrative, please have a look at: voith.com/corp-en/drives-transmissions/voith-schneider-pr...
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Wish everybody a great start in the Worldcup Soccer Series in Brasil ~ May the best team win!
Captured with a manual Nikkor 135 mm ƒ1:2.8 on my Nikon Df, post processed in Lightroom using VSCO Film Pack.
RMAS CAPABLE (A226)
IMO : 7902348
Class……………………………Adept-class TUTT (twin unit tractor tug)
Builder………………………..Richard Dunston (Hessle) Ltd., Hessle
Yard number……………….924
Laid down..………………….5 Sept 1980
Launched….…………………2 July 1981
Completed.………………….11 Sept 1981
Propulsion.…………………..2 Voith-Schneider vertical cycloidal prpellers : 2 Ruston : 4-stroke single acing 6 -cylinder oil engines manufactured by Ruston Diesels Ltd.
Speed..…………………………12 knots
Range…………………………..
Fate…………………………….2007: Sold out of RMAS service, see below.
•2003: Management taken over from RMAS by Serco Denholm Ltd.
•2007: Sold to SD Marine services Ltd
•2012 Admiralty Towage Services Ltd., Gibraltar
•2015 Rebonave, Portugal, renamed MONTEVIL
•2021: 11 May : Still in service (Equasis)
The future RMAS CAPABLE on the building slip at Richard Dunston at Hessle on 28 June 1981, just 5 days before her launching.
Guemes Channel. Dakota Creek Floating Drydock DD1.
Built as a tanker in 1938 by Manitowoc Shipbuilding Corp., Manitowoc, Wisc., In 1980 Converted into a Fish Factory.
1938 TRAVERSE CITY SOCONY
1955 - Socony-Mobil Oil Co., Inc., Chicago
1962 - RAYMOND J. BUSHEY Diesel Tanker S. D. Maddock, Inc. (Spentonbush Fuel Transport Service, Inc.), New York
1977 - Diesel Tanker Ira S. Bushey, Inc.
1980 - BERING TRADER Converted to Fish Factory by Bering Trader, Inc., Seattle
1991 - INDEPENDENCE Trident Seafoods Corp., Seattle
Auke Visser's MOBIL Tankers & Tugs Site
On Board The Traverse City Socony in 1954
Lindsey Foss and Garth Foss are Enhanced Tractor Tugs, and were the largest in the world (when built in 1994), featuring Voith Schneider cycloidal propulsion systems. and are specifically designed for tanker escorts.
Tan’erliq Work Boat in DCI dry dock for maintenance and repair. Boat has rear propulsion steering with Voith-Schneider Cycloidal vertical blades. Tan’erliq is said to have the most powerful V-S drive.
Departing Fishbourne, Isle of Wight and turning to head to Portsmouth.
St Faith is classed as a passenger roro cargo ship. Built in 1990 Cochrane Shipbuilders Ltd, Selby.
3x 850bhp 6-cyl MAN 6ASL25 diesel engines
3x Voith Schneider cycloidal propellers
12.5 knots (23.2 km/h; 14.4 mph)
Capacity:
722 passengers
142 cars
12 lorries
Crew of 12.
Guemes Channel. Curtis Wharf.
Ocean Ranger was built in 1990, by the Western Towboat Company of Seattle, Washington.
Lindsey Foss and Garth Foss are Enhanced Tractor Tugs, and were the largest in the world (when built in 1994), featuring Voith Schneider cycloidal propulsion systems. and are specifically designed for tanker escorts.
BBC Tennessee was built in 2008 by Jiangxi Jiangzhou Union Shipbuilding co.ltd
Adsteams Trafalgar runs past Bromborough at speed on her way back to Liverpool North Docks for a lock-in after working a ship into the Manchester Ship Canal at Eastham on the River Mersey.
She was designed and built by McTay Marine Ltd at Bromborough (a short distance from where the photo was taken) in 1998 for Howard Smith Towage and is a tractor tug equipped with Voith -Schneider cycloidal propulsion units, giving a bollard pull of 63 tons.
McTays also built a number of other tugs to an earlier variant of the same design and also a South African yard built a number of similar tugs to the same McTay design.
It is noteworthy that McTay were the first tug designers to adopt the octagonal wheelhouse, giving tug skippers improved visibility over earlier tug wheelhouse designs.
At the time she was built, she was the worlds most powerful Voith-Schneider equipped tug.
Fidalgo Bay.
Lindsey Foss and Garth Foss are Enhanced Tractor Tugs, and were the largest in the world (when built in 1994), featuring Voith Schneider cycloidal propulsion systems. and are specifically designed for tanker escorts.
Guemes Channel. Pier 1, Port of Anacortes. DCI Floating Drydock.
"Coho was designed by Philip F. Spaulding & Associates, of Seattle and is named after the coho salmon commonly found in the Pacific Northwest. Coho was the first large vessel built on the West Coast in 20 years solely with private financing. The vessel was built by Puget Sound Bridge & Dry Dock in Seattle, Washington and made her first sailing to Victoria B.C. on 29 December 1959. She was originally powered by two Cooper-Bessemer diesel engines rated at 2,080 bhp (1,550 kW) each. In 2004 she was refitted with two V-12 Electro-Motive Division (EMD)12-645F7B diesels rated at 2,550 hp (1,900 kW) each. Coho has twin 8-foot (2.44 m) stainless propellers with twin rudders. Her overall length is 341.5 feet (104.1 m) with a service speed of 15 knots (28 km/h; 17 mph)."
DCI Drydock, Guemes Channel.
"In 1999, Crowley put into service two of the most powerful cycloidal propulsion tugs ever built – the Prince William Sound Class’ Nanuq and Tan’erliq – in Valdez, Alaska. Offering “Best Available Technology” (BAT) these 153-foot, 10,192-HP tugs and their crews have been safely assisting and escorting tankers into and out of Valdez and Prince William Sound."
Name: MV St Clare
Operator: Wightlink
Port of registry: London
Route: Portsmouth to Fishbourne
Builder: Remontowa, Gdańsk
Launched: 26 April 2001
In service: 20 July 2001
Identification:
IMO number: 9236949
MMSI number: 235002514
Callsign: ZNNR5
Status: In service
Class and type: Car Passenger Ferry (St Clare Class)
Tonnage: 5,359 gt
Displacement: 1,939 ton
Length: 86.0 m (282.2 ft)
Beam: 18.0 m (59.1 ft)
Draught: 2.6 m (8.5 ft)
Depth: 15.09ft
Decks: 6, including 3 vehicle decks
Installed power: 4x 965bhp Wartsila 5L20C 5-cyl diesel engines, capacity: 44 litres per engine.
Propulsion: 4x Voith Schneider 21G 11/115 Cycloidal propellers
Speed: 13 knots (24 km/h; 15 mph)
Capacity: 878 passengers, 186 cars
Crew: 10-15
Smit Sandon, of the Kotug-Smit Mersey fleet, is seen on her home river, passing New Ferry astern of LPG tanker Coral Ivory, on 10.12.2018, which she was booked to assist as stern tug into Eastham Locks.
As can be seen, she is still awaiting application of red paint to her lower hull to complete the corporate colour scheme. I imagine this will be applied when she is next dry-docked.
Of typical Belgian design, she is one of a number of tugs to the same or similar design built for URS for use on the River Schelde and the approaches to the Port of Antwerp, which has its own fleet of tugs.
Built in 1996 by Astilleros Armon, of Navia in Spain, as Schelde 20, she develops 41 tonnes (ahead) bollard pull delivered via Voith-Schneider cycloidal drives.
She was transferred to the Mersey and took up her current name in August 2009.
Guemes Channel. Curtis Wharf.
Lindsey Foss and Garth Foss are Enhanced Tractor Tugs, and were the largest in the world (when built in 1994), featuring Voith Schneider cycloidal propulsion systems. and are specifically designed for tanker escorts.
Strait Arrow was built by Stewart Seacraft in 1964.
BBC Tennessee was built in 2008 by Jiangxi Jiangzhou Union Shipbuilding co.ltd