SUBSIM Radio Room Forums

SUBSIM Radio Room Forums (https://www.subsim.com/radioroom/index.php)
-   Silent Hunter III (https://www.subsim.com/radioroom/forumdisplay.php?f=182)
-   -   Carribean hunting grounds? (https://www.subsim.com/radioroom/showthread.php?t=102537)

Stix 12-23-06 03:48 AM

Carribean hunting grounds?
 
Hey guys it's October 41' and i was just given my very own IXC fully kitted with the latest and greatest. I can't think of better way to break her in then a trip to the Carribean.

Any suggestions on on where to go and what to see? I haven't ruled out Newfoundland yet either, weather might be a bit cold for me though.

Any suggestions?

Stix

Letum 12-23-06 03:51 AM

Wait until after december '41 then you can sink the American ships and keep historicaly correct!

Stix 12-23-06 04:06 AM

Actually scrap that thought, once i worked out the distances and range the IXC doesn't quiet have the legs for it, it will get there and back but only just!. My Carribean holiday will have to wait :(

Letum 12-23-06 04:09 AM

no milk cows yet?

Stix 12-23-06 04:22 AM

Quote:

Originally Posted by Letum
no milk cows yet?

I've never used them. It's late 41, GWX, should there be? How do they work?

Thanks in advance

Stix

Ducimus 12-23-06 04:32 AM

Quote:

Originally Posted by Stix
Actually scrap that thought, once i worked out the distances and range the IXC doesn't quiet have the legs for it, it will get there and back but only just!. My Carribean holiday will have to wait :(

:roll:



If you think you might be short on fuel , submerge at daybreak, and surface at 0 hour to recharge bats. Run your diesals as little as possible. Usually i'll do this to clear biscay bay. Atlantic crossing is done on the surface (only sane way really), once you get into the carribean, you'll spend most of your time underwater, and about 4/5 hours a day on the surface.

Letum 12-23-06 04:34 AM

oh dear....this is the 3rd time I have answerd this question in 24 hours.....

Requirements for Resupply points (milk cows):
SH3Commander
A mod with milk cows/resupply ports (i.e. GWx)
Finding Supply Points (GWx)
Press F1 in game to find a list of supply points and dates they are available
They will appear as a friendly port on the map
Using Supply Points
1)
Get in range of the supply point
2) Press Esc and dock at the supply point as if it where a port
3) Exit the game and load SH3Commander
4) In SH3Commander click on the blue text next to "status" until it changes to "in other base" make sure your patrol grid hasn't changed. If it has; set it back.
5) Start the game and load your career as you normally would from the last save in the list. You will get the office screen. Click on the board to start the mission as usual. You should start at the supply point of milk cow. One day will have passed and you will be resupplied.

Ducimus 12-23-06 04:36 AM

Milk cows? Bah, i dont use em! :smug:

Letum 12-23-06 04:36 AM

Quote:

Originally Posted by Ducimus
Quote:

Originally Posted by Stix
Actually scrap that thought, once i worked out the distances and range the IXC doesn't quiet have the legs for it, it will get there and back but only just!. My Carribean holiday will have to wait :(

:roll:



If you think you might be short on fuel , submerge at daybreak, and surface at 0 hour to recharge bats. Run your diesals as little as possible. Usually i'll do this to clear biscay bay. Atlantic crossing is done on the surface (only sane way really), once you get into the carribean, you'll spend most of your time underwater, and about 4/5 hours a day on the surface.

Running on batteries does not save fuel!
It takes up much more fuel to recharge the battrys!

It does prevent air attacks, but does not save fuel at all!

Stix 12-23-06 04:36 AM

Quote:

Originally Posted by Ducimus

If you think you might be short on fuel , submerge at daybreak, and surface at 0 hour to recharge bats. Run your diesals as little as possible. Usually i'll do this to clear biscay bay. Atlantic crossing is done on the surface (only sane way really), once you get into the carribean, you'll spend most of your time underwater, and about 4/5 hours a day on the surface.

Do you keep your engines on recharge mode for this? I have done that before in my VIIB to increase range but seeing as you lose speed while "recharging" and you are theoritically still doing the same RPM i.e. same fuel burn i thought the benfits might not be all that great. I haven't done the maths on it, i might do it now in my IXC actually.

Stix

Ducimus 12-23-06 04:39 AM

Quote:

Originally Posted by Letum
Running on batteries does not save fuel!
It takes up much more fuel to recharge the battrys!

It does prevent air attacks, but does not save fuel at all!

Acutally it does. Assuming you have the NASA battery fix in place (which most mods do) The reality is it takes about 3 hours of running on the surface to fully recharge your bats. Trust me, ive done this countless times.

The only time time running on batteries wont save on fuel is if your using the stock battery settings that never drained, lasted for days, and took about as long to recharge.

Letum 12-23-06 04:44 AM

Quote:

Originally Posted by Stix
Quote:

Originally Posted by Ducimus

If you think you might be short on fuel , submerge at daybreak, and surface at 0 hour to recharge bats. Run your diesals as little as possible. Usually i'll do this to clear biscay bay. Atlantic crossing is done on the surface (only sane way really), once you get into the carribean, you'll spend most of your time underwater, and about 4/5 hours a day on the surface.

Do you keep your engines on recharge mode for this? I have done that before in my VIIB to increase range but seeing as you lose speed while "recharging" and you are theoritically still doing the same RPM i.e. same fuel burn i thought the benfits might not be all that great. I haven't done the maths on it, i might do it now in my IXC actually.

Stix

The RPM is the same, but charging the batteries puts more load on the diesels so you need more throttle to maintain the same speed. More throttle = more fuel burn.
There is efficiency loss in charging the batteries and in transferring the battery power to the E-Motors. These efficiency losses are not present when running direct from the diesels. This means that running electric motors uses more fuel.

baggygreen 12-23-06 04:46 AM

I have to agree with Ducimus here.. he is after all the king of the long range voyage!:yep:

To the OP - mate, i've gone the distance to the carib. and back in a IXC several times without refueling! Stick your speed to 9 knots and you'll get around 33000km range, which is more than enough to get there and back again!

Ducimus 12-23-06 04:47 AM

Heres the scenario.

It takes about 3 hours to recharge bats. Fuel and battery consumption is based on how many RPMs your turnining. Less RPMS, less engery used, more RPMs, more energy being used. Hydrodynamics is not modleed so thats all we need to know. So again, 3 hours of recharging.

Thats 3 hours of

A.) sitting stationary with one engine at 500 RPMs (flank).

something which i'd rarely do unless in a good chokepoint of a grid, or

B.) running at one engine at 500 RPMs and another engine at 100 to 200 RPMs, for a grand total of 600 to 700 RPMs.


vs

12 to 24 hours of both engines running for a combined total of 200 to 400 RPMs during that time.


The key is knowing how much fuel is burnt off at any given RPM setting 100 through 500, which, i dont think anyone really knows. But, the proof is in the doing. I proved it to myself doing a patrol to GR89. Clear out by the cape of africa. I did that in an IXC, running submerged the entire time, raising a snorkel only long enough to recharge the batts 3 hours a day. If i did that trip on the surface, i would have ran out of fuel somewhere in the vacinity of Gibralter or spain. Instead i ended up bringing my boat into Lorient, with a few drops to spare, but she was most definatly sucking diesal fumes by that time.

Letum 12-23-06 04:50 AM

Quote:

Originally Posted by Ducimus
Acutally it does. Assuming you have the NASA battery fix in place (which most mods do) The reality is it takes about 3 hours of running on the surface to fully recharge your bats. Trust me, ive done this countless times.

The only time time running on batteries wont save on fuel is if your using the stock battery settings that never drained, lasted for days, and took about as long to recharge.


ARGH! You can't be more wrong.
This is very basic physics!

If running on electrics charged by the diesels was more efficient then running on diesels that would mean that if you ran off electrics and charged them at the same time you would have a efficiency gain. That would mean that there is additional energy input apart from the diesels. You can not get energy from nowhere.
In real life it is impossible to get efficiency gains by running off electrics charged by diesel. If a SH3 mod changes this then it is extremely unrealistic.


All times are GMT -5. The time now is 08:05 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright © 1995- 2025 Subsim®
"Subsim" is a registered trademark, all rights reserved.