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Old 02-15-2009 | 05:32 PM
  #9  
cadmunkey
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From: Chilliwack, BC, CANADA
Default RE: Fully Operational Right Angle Drive

I don't want to seem like a jerk, but I have done a tonne of research on this ship, I have been given the privilege by her officers and crew as well as the managing company BCF to have any information I would like. I spent 3 days aboard her last summer and during that time I was allowed to take the helm and feel how she responds and is controlled. I was taken down into the bowels of the ship and was standing inside of the RAD housing and next to the engines. I can say I am quite the expert on the vessel with ease.

Of course any input is great, but I have seen how it works ont he real ship and would like to make myn work that way too.

Actually, the Rads in the real ship are mounted perpendicular to the hull NOT the waterline, of course they are perpendicular in to the waterline when facing backwards. When the RADs point along the axis of the hull IE. going straight they are perfectly lined up with the waterline, but when they are pushing sideways they are not perpendicular to the hull. It actually doesn't matter if the RADs are lined up with the waterline or not when going sideways, all of the forces will act around the ships center of gravity and will cause the same amount of roll as if they were lined up with the waterline, It will roll in any situation. You could argue that it would be more efficient to have the thrust vector line up with the waterline for more sideways speed, but not for roll.

Also, the ones int he real ship aren't streamlined so I don't want to make it untrue to the real vessel.

Just a couple of notes on the real Queen of Chilliwack as to help put the ships performance into respect.
-375'11" long, double ended, passenger/car ferry
-Class 1 icebreaker
-Built 1977 in Norway out of recycled naval vessels.
-4 1100HP 6 cyl. diesel engines at about 520 shaft RPM
-Maximum speed 14.2 knts
-Most efficient speed 10.8 knts on rear 2 engines at about 60% power each - forward 2 RADs freewheeling with engines off and disengaged.

You can see that the ship is a pig, its not a performance vessel of any sort. Already from the, little time I have had the one RAD operational in the hot tub I have found her to have comparable power to the real ship, and of course on only one RAD. She will be quite powerful once all 4 RADs are completed. And when I do there will be footage and pics to share.

Cheers,