Topic: Unrealistic bowthruster of the POR. (Read 5290 times)

Sam · « **on:** January 16, 2008, 19:13:34 »

The bowthruster of the Pride of Rotterdam in the 1.3 patch is verry unrealistic.

My pictures explain enough.

The first picture is the start position, and the second picture after using only my bowthruster.
But offcourse, this is just my opinion. What do you think about it?

Bottman · « **Reply #1 on:** January 16, 2008, 19:15:09 »

The whole movement just by using the bowie? Can't believe, but I'm gonna try that reight now...

Hey man, you are right! How strange...

JoMach · « **Reply #2 on:** January 16, 2008, 19:22:25 »

This is possible in these case when the bow is out of the wall and the waterstream is streaming bow to stern,
the stream pusht than the aft also from the wall.

Bottman · « **Reply #3 on:** January 16, 2008, 19:26:29 »

Since when we have stream or tidal influences? That would be great, but the bow must turn much faster under those conditions...

saltydog · « **Reply #4 on:** January 16, 2008, 19:45:01 »

I do not have experience in this, but I tend to agree with Jomach, the power of the water from the bowthruster caught between the dock and the ship will also cause the stern to move, it would seem to me..

Bottman · « **Reply #5 on:** January 16, 2008, 19:59:39 »

With this little bow thrust power the whole ship should move..

And after coming free from the quay, the side movement should stopp, but it doesn't. Former versions have seen the vessels stern crashing into the quay under the same conditions as now.

LucAtC · « **Reply #6 on:** January 16, 2008, 20:16:24 »

Hello,
The pictures shown reflect very well the result of the forces exerted by a bowthruster. A turning moment and a side thrust applied at the (initial) pivot point. That can be illustrated and easily understood if the PoR was like a great floating round ton.
The resulting movements shown in the pictures are just like the bowthruster was very close to the pivot point, or the center of mass.
It was best reflected with a maximum RoT of 6Â°/min already mentioned elsewhere. Some performances of the ships were indeed impaired with 1.3, but will probably be easily corrected with a new patch

(Edition of parameters...).
Regards,
Luc

mvsmith · « **Reply #7 on:** January 16, 2008, 20:19:04 »

She walks sideways like a crab even in open water.
Marty

groennegaard · « **Reply #8 on:** January 16, 2008, 21:11:51 »

Unfortunately there is bug in the 1.3 update that affects the PoR. The issues has been reported to the developers who are currently working on the problem.

I'll let you know if there should be any news.

Regards
groennegaard

LucAtC · « **Reply #9 on:** January 16, 2008, 22:17:58 »

It is good to know it will be put to right, and while they check it, they could also have a look at the bowthruster of the P6 Patrol boat, its pivot point with bowthruster only being also behind the stern.
Regards,
Luc

groennegaard · « **Reply #10 on:** January 16, 2008, 22:31:57 »

Hi Luc

The major problem with altering the pivot point is that all the dynamics data must then be adjusted to fit the new point. I believe we'll only see minor updates to model dynamics until the next SS.

Regards
groennegaard

nbc · « **Reply #11 on:** January 26, 2008, 15:20:22 »

I need some help using the PoR. How do you get it straight off the wall, sideways? I keep getting just the Bow off the wall, then having to use my engines and going forwards. Why can't i just push sideways off the wall?

(My multiplayer name is Nathan

)

Bottman · « **Reply #12 on:** January 26, 2008, 15:26:05 »

Hi Nathan,

try it this way! Well, you have to play a little bit with rudder and bow thruster, but in general it works that way.

Cheers

mvsmith · « **Reply #13 on:** January 26, 2008, 15:35:21 »

The simple answer is that she has only a bow thruster, which does not act at the effective center of mass. There are a few topics which can give you an understanding of the problem.
Marty

nbc · « **Reply #14 on:** January 26, 2008, 17:41:20 »

Thanks Bottman, it works!

Bottman · « **Reply #15 on:** January 26, 2008, 18:26:34 »

Be my guest!

nbc · « **Reply #16 on:** January 26, 2008, 18:29:20 »

But there is no way i can do the mission where you have to dock at the beneluxhaven. How you could get to that, i don't know!

llamalord · « **Reply #17 on:** January 26, 2008, 20:44:44 »

Man talk about hard to deal with

The Lord of the Llamas

TugDuck · « **Reply #18 on:** January 29, 2008, 18:19:53 »

The standard manoevre for the POR is to put the bow thruster against its jetty at the start, and give slow astern with SB engine. Then let go all lines except sb aft.
Put the bow thruster hard to SB and port engine slow ahead.
Stop SB engine. The Ship will turn of the jetty, when she has swung about 60 degrees let go the last line and let her swing on with rudder still amidships.
When she has swung around 90 degrees, give port half ahead and SB slow astern.
Then let her swing to the axis of the Benelux harbour.
Put bowthruster amidships, rudder amidships and both engines at slow ahead
Sweet sailings
DuckTug

Sam · « **Reply #19 on:** January 30, 2008, 13:51:02 »

Isn't the ROT of the POR much to slow when laying still?

With bowthruster full port, rudder full port, port engine full back and starboard engine full ahead, I only get 25Â°/min.

Thats annoying when you want to turn a 180Â° in a tight spot.

I saw cross channel ferries turn faster than that.

groennegaard · « **Reply #20 on:** January 30, 2008, 15:09:33 »

Quote from: Sam on January 30, 2008, 13:51:02

Isn't the ROT of the POR much to slow when laying still?

With bowthruster full port, rudder full port, port engine full back and starboard engine full ahead, I only get 25Â°/min.

Thats annoying when you want to turn a 180Â° in a tight spot.

I saw cross channel ferries turn faster than that.

http://www.shipsim.com/ShipSimForum/index.php/topic,4664.msg47219.html#msg47219

Regards
groennegaard

Sam · « **Reply #21 on:** January 30, 2008, 18:56:40 »

Quote from: groennegaard on January 30, 2008, 15:09:33

http://www.shipsim.com/ShipSimForum/index.php/topic,4664.msg47219.html#msg47219

Regards
groennegaard

Do you mean with that that the ROT is to slow?

That all the dynamics of the POR are unrealistic.

groennegaard · « **Reply #22 on:** January 31, 2008, 01:34:28 »

Quote from: Sam on January 30, 2008, 18:56:40

Do you mean with that that the ROT is to slow?

That all the dynamics of the POR are unrealistic.

Yes, the PoR dynamics are bugged in 1.3 and therefore the PoR turns too slow. It will be fixed, but I don't know when the next update will be released.

Regards
groennegaard

Admiral-of-the-fleet · « **Reply #23 on:** March 29, 2008, 01:17:56 »

Wow!!!! never seen that before... moving away from the dock edge with just the bow thruster!!!

Well i think the only way you could move in a perfect sideways motion like that is with azipod and bow thruster combinations something the POR doesn't have!!!! Bit unrealistic but there we are.

Oh and to add to the above comment to perform a perfect 180 degree turn in the ships own length can only really be done by a small handful of ships mostly those with very powerful bow thrusters (most large ships often have more than 1) and often with azipods enabiling a better manouvrability although i will concede the POR's manouvaribility is a tad sluggish. I'm sure it will be sorted soon though.

groennegaard · « **Reply #24 on:** March 29, 2008, 01:26:10 »

PoR has 2 Fincantieri 2,000kW bow thrusters but those 2 thrusters are synchronized in SS.

None of the vessels act exactly as the originals. If you want a simulator that is exact, you have to spend a 1000 times the amount of money you spent on SS.

Pride of Rotterdam was bugged in v1.3 so the Pride of Rotterdam is actually the model used before the release of v1.3. However, the dynamics are still being improved so I believe you will see a much better Pride of Rotterdam very soon. I promise I will do my best to make it happen.

Regards
groennegaard

Author Topic: Unrealistic bowthruster of the POR. (Read 5290 times)

mvsmith

nbc

mvsmith

nbc

nbc