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by Big Pete
Sat Oct 07, 2017 7:50 am
Forum: The Workshop
Topic: Wireless Shore Power
Replies: 9
Views: 347

Re: Wireless Shore Power

It sounds just like charging an Electric Tooth brush,Primary winding of the Transformer ashore and the Secondary on the ship. I assume that if the shore power failed the Emergency Generator would kick in within 40 seconds as required by SOLAS, and if one the main generators was left in Auto on the P...
by Big Pete
Sat Oct 07, 2017 1:44 am
Forum: Crew Mess
Topic: Back to the age of sail?
Replies: 3
Views: 252

Re: Back to the age of sail?

I sailed with a guy who was Chief Engineer on one of the Windstar ships, he said it was hell, the PR people planned the routes so that the ship never had a favourable wind and to make the schedule they ran the engines all the time, and never used the sails. Despite the Master and Chief both telling ...
by Big Pete
Fri Oct 06, 2017 6:35 am
Forum: The Workshop
Topic: Wireless Shore Power
Replies: 9
Views: 347

Re: Wireless Shore Power

First you see it, then you don't and then you do!
The Magic of computers.
by Big Pete
Thu Oct 05, 2017 2:56 am
Forum: Crew Mess
Topic: Autonomous Ships
Replies: 4
Views: 271

Re: Autonomous Ships

by Big Pete
Thu Oct 05, 2017 2:28 am
Forum: The Workshop
Topic: Wireless Shore Power
Replies: 9
Views: 347

Wireless Shore Power

An interesting article here about "wireless" shore power connections for Electric ferries.


https://www.imarest.org/themarineprofes ... r-wartsila
by Big Pete
Thu Oct 05, 2017 2:24 am
Forum: The Workshop
Topic: Common Rail Engine 48/60 cr
Replies: 21
Views: 1140

Re: Common Rail Engine 48/60 cr

https://www.imarest.org/themarineprofes ... ine-engine

There is a replacement engine out, maybe it would be easier to re engine?
by Big Pete
Sat Sep 30, 2017 1:37 am
Forum: Crew Mess
Topic: Autonomous Ships
Replies: 4
Views: 271

Re: Autonomous Ships

I remember 30 years ago the Japanese Governmant was testing an unmanned ship in the Sea of Japan. Wartsilla recently did trials of remotely controlling a PSV at Sea, off the Scottish Coast for several hours in DP and normal steaming mode, the ship, Highland Guardian, Gulfmark Offshore, still had a f...
by Big Pete
Thu Sep 28, 2017 3:09 am
Forum: The Workshop
Topic: Engine performance in varying ambient temperatures
Replies: 8
Views: 407

Re: Engine performance in varying ambient temperatures

I think the latest generation of engines with precise control of charge air pressure through 2 stage turbo charging with waste gates to precisely control charge air pressure and 2 stage charge air coolers to precisely control charge air temperature can almost completely compensate for changes in amb...
by Big Pete
Sun Sep 24, 2017 3:08 am
Forum: Crew Mess
Topic: Hurricanes
Replies: 7
Views: 382

Re: Hurricanes

Thanks Jolly Jack for the input, Hurricanes happen every year and even rich sophisticated countries like the USA have problems dealing with them, smaller Countries have no chance on their own. Working for Norwegian Companies I found that they shared a pool of spare parts, in case of major failures, ...
by Big Pete
Fri Sep 22, 2017 10:13 am
Forum: The Workshop
Topic: Engine performance in varying ambient temperatures
Replies: 8
Views: 407

Re: Engine performance in varying ambient temperatures

Hi J-N, The Old way was to calculate Indicated Horsepower, by using a mechanical indicator card, this worked like a recording barograph to record cylinder pressure for each individual cylinder, and the drum was rotated by a piece of string linked to the camshaft so that the Indicator card drew a gra...
by Big Pete
Thu Sep 21, 2017 4:09 am
Forum: Crew Mess
Topic: Hurricanes
Replies: 7
Views: 382

Hurricanes

This might not be the best place to post this, but I want to "vent" and maybe get some feedback on ideas below: Like many people I have been shocked by the lack of an organised response to the recent series of Hurricanes in the Caribbean. Shipping bottled water from the UK to Gibraltar, tr...
by Big Pete
Thu Sep 21, 2017 12:09 am
Forum: The Workshop
Topic: Engine performance in varying ambient temperatures
Replies: 8
Views: 407

Re: Engine performance in varying ambient temperatures

Hi Jeroen, Welcome t the site. I am not an Academic so I can't point you in the direction of Academic papers on this. However, the main factor for the engine is the air temperature at the air intake to the engine. The colder and drier the air and the higher the air pressure the better. I remember re...
by Big Pete
Tue Sep 05, 2017 12:59 am
Forum: Crew Mess
Topic: USS Indianapolis and other random USN topics
Replies: 15
Views: 750

Re: USS Indianapolis and other random USN topics

This is a very big issue, warships are supposedly designed to survive and keep fighting after severe action damage, so unless springfield towing are going to send a fleet of tow trucks to follow the fleet around the south china seas to help, there is a major design fault here. Or were the ships expe...
by Big Pete
Fri Sep 01, 2017 10:31 am
Forum: Crew Mess
Topic: USS Indianapolis and other random USN topics
Replies: 15
Views: 750

Re: USS Indianapolis and other random USN topics

Me neither, never had a collision in 45 years at Sea, on most of that time on ships much less manoeuvrable than a destroyer and fitted with a Radar system costing a a few Hundred Dollars, rather than millions for AEGIS radar systems. " The price of Admiralty is eternal vigilance" Still tru...

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