CA's UBoat Instrument Patch v1 (Released)

[Pablo]

Originally Posted by The Avon Lady

Question: what would happen if the aft plane was in the same position as the fore plane when diving or surfacing?

Hi!

The submarine would descend and surface much more slowly, and would do so on a relatively even keel with no major up/down angle.

This would create a torque effect on the submarine as you rotate the front end and the back end of the submarine in the same direction at the same time. I don' t know how this stress would affect a submarine's hull, but if you use your fingers to reproduce the effect on a small stick you can break off the end of the stick.

Pablo

The dive planes in the external and internal (guages) views are all out of whack. The bow planes should point up (forcing the bow down) and the stern planes point down only when the sub is starting to dive. They should then level off, or the angle will continue to increase until the boat is upside-down (not a good thing). When the boat nears the assigned depth the planes should then reverse, causing the sub to level off. Of course this can be modified for different dive/surface angles and speeds. Just listen to the Chief's various commands in Das Boot: "Bow down ten, stern up ten"; "bow down fifteen, stern down five" etc.

Amazingly, Silent Hunter II got this right. Their external and dive guages views show the planes moving to start and stop the dives.

[The Noob]

Originally Posted by Sailor Steve

Amazingly, Silent Hunter II got this right. Their external and dive guages views show the planes moving to start and stop the dives.

Thats the only thing thats correct in the wohle SH2 Game!
:rotfl: :rotfl: :rotfl: :rotfl: :rotfl: :rotfl: :rotfl: :rotfl: :rotfl:

[Captain America]

Some comments:

First regarding the "look" of the gauges:

I believe the red scale on the top as depicted on the U-995 pictures and my diagram are correct.

1) I've seen a few other pictures as well that show it this way. I'll do some searching later and find the links.

2) The maker of the Bordinstrumente mod did a lot of research when making his textures. He was very thorough and if I am not mistaken he even used actual uboat plans/diagrams when designing it. His dive planes also depict the red scale on top.

3) I believe its logical for the red scales to be on top. Think about it, the dive planes only start to work when submerged...I believe its relative to depth. If the dive planes are in the "black", depth is increasing, hence you dive. If the planes are in the "red" depth is decreasing, hence you rise. Seems logical to me.

Originally Posted by Sailor Steve

The dive planes in the external and internal (guages) views are all out of whack. The bow planes should point up (forcing the bow down) and the stern planes point down only when the sub is starting to dive....

I'm sorry but I have to disagree. Hydrodynamics and aerodynamics share a lot of the same physics. Afterall, when designing airplanes smaller scale models are tested underwater (besides wind tunnels) to ensure they're aerodynamically efficient.

The dive planes act just like a wing does on an airplane. If you pitch the wing down the airplane will descend as you are increasing the air pressure on top of the wing. If you pitch the wing up, the airplane climbs as you are increasing the air pressure on the bottom of the wing. You can test this by sticking your hand out of the window in a moving car....

The same goes for the dive planes, which is theoretically just like a wing...You pitch the planes down, water pressure increases on the top surface which causes the bow to dive. The opposite is happening on the stern because in order to dive faster we want the stern to rise. I agree though, when the sub is at/near its desired depth the dive planes would reverse to conteract the drop. Here's my diagram modified:



-CA

[Tikigod]

GENERAL DIVING OPERATIONS
Read About it here:
http://www.maritime.org/fleetsub/chap18.htm#18A
http://www.maritime.org/fleetsub/elect/chap11.htm

COMPLETE SUBMARINE OPERATIONS MANUAL w/illustrations c.1945
http://www.maritime.org/fleetsub/





Other Photos on Net of Dive Plane Stations

@Captain America: I think we agree. In an airplane pitching the elevator up will cause the plane to climb. My comment was that if you leave the elevators pitched up, the climb will increase until the airplane loops. Same with the submarine: once the correct dive angle is reached the planes must be centered or the pitch will continue to increase.

[Redwine]

Originally Posted by Captain America

Some comments:

First regarding the "look" of the gauges:

3) I believe its logical for the red scales to be on top. Think about it, the dive planes only start to work when submerged...I believe its relative to depth. If the dive planes are in the "black", depth is increasing, hence you dive. If the planes are in the "red" depth is decreasing, hence you rise. Seems logical to me.



-CA

Your diagrams are correct in my opinion Capy, but it is not logical foe me as for you the "Red" portion is working when surface.

Red seems to be used for danger condition, or foir caution condition, and the dangerous is the dive planes wich cause a submarine negative pich, nose down, it is the dangerous zone, because is you puth nose down too much you can enter in risk to not be able to control the sub and rach an horizontal position and pass the crush depth.
It sound more logical for me, but may be i am wrong.

I made all dial sclaes in Black due to this fact...... and forget the red .....


But......

This is not the problem to be fixed...........

Look at my screen shots plese, it is hard to me to explain, be patient.

You wrote the dive plane is like as a wing, correct.

They works as a aeroplane horizontal stabilizer (stern dive plane) and as a canard (froward dive plane)

The problems are the simbols, the icons of this stabilizer and canard into the instruments.

As a little wing, they have an front border, and a rear border, i dont know the name in english, we call them

Attack Border, and Scape Border......

May be in english intake border and exaust border..........

The Attack Border must to be always pointing to bow......
The exaust Border must to be always pointing to stern......

Look at my screen shots, in Type IXC/40 they are right, but in Type VIIC one of them is inverted....... with the front or attack border pointing back.......

Thats the problem to be fixed...... not the dial scale.

[Redwine]

Originally Posted by Tikigod

Other Photos on Net of Dive Plane Stations

This is what i attempt to explain in my bad english........

Look at this picture of Tiki......

Both dive planes "wings" are pointing to the same place, bow.....

The little wings which represents the dive planes have a needle wich is pointing forward in both planes.

It is like this in Type IXC/40 screen shot i posted......

But not in the Type VIIC screen shot i posted......

[Salvadoreno]

is it out yet?

[Salvadoreno]

::bump::

[Captain America]

Captain's, I have good news today....

Another screenshot you have never seen before:



Another very annoying bug solved.

No more radar bearing wheel mirroring problems. As you can see from the screenshot the bearings on the wheel accuarately depict the proper bearing of the radar contact.

Also, if you had the radar station manned the crew member would scan from 360 to 0. This has been corrected, now he scans properly from 0 to 360.

It took me MANY aggrevating hours to fix this. I am so happy right now.

At this rate I'm gonna name the mod "SH3 Unofficial 1.5 Patch"

-CA

[Kpt. Lehmann]

Originally Posted by Captain America

Captain's, I have good news today....

At this rate I'm gonna name the mod "SH3 Unofficial 1.5 Patch"

-CA

You have my vote!

[Tikigod]

At this rate I'm gonna name the mod "SH3 Unofficial 1.5 Patch"

-CA

What is next? an expansion pack? you know it would be nice to be able to go into the forward and aft compartments....I always wanted to see the rest of the boat... Maybe you can get the anchor to drop too....or am I pushing it?

[WolfyBrandon]

Originally Posted by Captain America

At this rate I'm gonna name the mod "SH3 Unofficial 1.5 Patch"

Well looking at your list of fixes its beginning to look like another patch for SH3.

Your work is really going to be appreciated by many members of this community

Wolfy

Cool stuff!