Arctic/Offshore Patrol Ship AOPS

[Colin Parkinson]

Looking at the state she is in, I would not be surprised they are already doing various tests of sub systems alongside in prep for actually going to sea.

 

[Underway]

So nothing here for a while so I'll update some interesting engineering I found out recently.

Two counter rotating propellers which rotate outwards from the centerline (over the top).  I was wondering why this was as its opposite the frigate configuration so did a little research.

There are two rudders on the AOPS, and one on the frigate.  The inward turning props on the frigate force water against the rudder to help increase steerage and reduce wake.  The AOPS doesn't have this problem due to the double rudder.

Secondly, you want to increase wake on the AOPS to push ice away from the ship.  This is done with the paddle wheel effect wash from the props and by canting the rudders on an angle away from the centreline evenly to force more water away from the ship as it moves forward.

This is common in ice breakers I'm told but interesting for me nonetheless.

 

[Colin Parkinson]

Underway a closeup of those bits https://youtu.be/j3b3WE-Jepc

 

[Swampbuggy]

Curious where the HMCS HARRY DEWOLF is with regards to sea trials? Seems like awhile since there's been any news about it at all.

 

[newfin]

I asked the same question on September 27...all anyone can say is we are getting close.  I did find one reference to her sea trials on Halifax Shipping news:
https://blog.halifaxshippingnews.ca/2019/10/aops-2-launch-delayed.html

In the article he ties the launch of AOPS2 to the seatrials of HDW which makes sense if berthing space is limited.

 

[Swampbuggy]

I guess that means mid November for starting sea trials.

 

[Underway]

Margaret Brooke is going into the water next weekend from what I am hearing.  They need to make space for the Max Bernays on the blocks.  No idea when HDW starts sea trials. 

This shipbuilding plans seems to finally be coming due.  West and East Coasts are starting to get rolling.  Bout time!

 

[Swampbuggy]

Halifax Shipping News blog reported that it's rumoured HDW will commence sea trials this upcoming Friday.

 

[dapaterson]

Global News is reporting that Irving may cut jobs and offshore production of some components for the AOPS.

https://globalnews.ca/news/6125710/irving-cuts-possible-arctic-patrol-ships/

 

[Rifleman62]

Irving savings for the taxpayer or Irving profit?

 

[The Bread Guy]

Irving savings for the taxpayer or Irving profit?

It's a business - take a guess ...  ;D

 

[Underway]

Global News is reporting that Irving may cut jobs and offshore production of some components for the AOPS.

https://globalnews.ca/news/6125710/irving-cuts-possible-arctic-patrol-ships/

Is it really cutting jobs or reducing hiring new people?  If we lose 40 jobs in Darmouth but those same people fill positions at the main yard which is hiring about 120 new people, then you hire 80 new people instead... 

 

[calculus]

AOPS (AOPV) 2 has been launched, and is in the water: https://shipsforcanada.ca/our-stories/halifax-shipyard-launches-canadas-second-arctic-and-offshore-patrol-ship

Sea trial for HMCS Harry DeWolf is reputed to start 21 Nov.

 

[Colin Parkinson]

For you FBians https://www.facebook.com/CanadianForces/videos/444586466093750/

 

[Underway]

AOPS (AOPV) 2 has been launched, and is in the water: https://shipsforcanada.ca/our-stories/halifax-shipyard-launches-canadas-second-arctic-and-offshore-patrol-ship

Sea trial for HMCS Harry DeWolf is reputed to start 21 Nov.

Delivery in March apparently.

MB was launched because it's the last day of the year that she could be.  After this weekend she's would of had to stay till spring blocking up the jetty space.

 

[Eye In The Sky]

Is there a specific reason it was the 'last day'? 

 

[tomahawk6]

Put some F35B's or cobra gunships on board.  8)

 

[Uzlu]

According to DND, Irving is planning to conduct formal sea trials in January 2020.

https://www.theguardian.pe.ca/news/canada/arctic-and-offshore-patrol-vessels-will-be-late-leaving-halifax-shipyard-375219/

 

[Underway]

Is there a specific reason it was the 'last day'?

With the winter coming up there were limitations for the semi-submersible launching vessel.  Don't know what they were but I'm inferring that she probably wouldn't take well to freezing conditions in the plumbing system.

 

[Eye In The Sky]

With the winter coming up there were limitations for the semi-submersible launching vessel.  Don't know what they were but I'm inferring that she probably wouldn't take well to freezing conditions in the plumbing system.

Copy, thanks!