Guide to fuel conservation

Steeltrap · 07-30-07, 07:45 AM

Another thing to consider is this: do I have to go anywhere IN my patrol zone? In other words, having reached your patrol zone there is no actual need to go anywhere until you find a target or have one reported you wish to intercept. That's why I lie motionless on the surface in my patrol zone once I'm in a likely encounter position.

O'Kane did that in Tang...he said to lie to like that took some getting used to!

Snuffy · 07-30-07, 08:09 AM

Good Tips Ducimus! Thanks!

I for one have always been very conscious of my fuel, realizing that if I wanted to get the boys home to see the girls we needed certain amount of fuel for doing so.

Of course now that I'm in July 44 and tenders are showing up all the time as the allied lines advance over the Pacific, (the Marines just took Siapan yesterday!

) so having more places to refit before heading to home is allowing me to take on more and more assignments from HQ.

The only times I head home now are if I have damage to the point of batteries not reaching full charge or I have wounded that are taking a long time to recover. Also I don't go home unless HQ tells me too. (After sighting and reporting a contact sometimes HQ says RTB at your discretion.)

pocatellodave · 07-30-07, 08:29 AM

Good job Ducimus.Thanks a lot.
Pocatellodave

PepsiCan · 07-30-07, 09:42 AM

Quote:

Originally Posted by Steeltrap

Another thing to consider is this: do I have to go anywhere IN my patrol zone? In other words, having reached your patrol zone there is no actual need to go anywhere until you find a target or have one reported you wish to intercept. That's why I lie motionless on the surface in my patrol zone once I'm in a likely encounter position.

O'Kane did that in Tang...he said to lie to like that took some getting used to!

I do that too. Near Kyushu or near Formosa/Taiwan the ships will come to you. So, wait and you'll get a contact :-) Waiting near busy harbours is also beneficial.

ReallyDedPoet · 07-30-07, 09:47 AM

Nice Ducimus

, just saw this.

RDP

Tom C · 07-30-07, 10:16 AM

Quote:

O'Kane did that in Tang...he said to lie to like that took some getting used to!

Steeltrap, did O'Kane say whether he kept all or some diesels idling (instead of shut off), in case he needed to move in a hurry?

I'm still playing the archetypal over-cautious early-war skipper and I see Japanese periscopes under every whitecap!

sqk7744 · 07-30-07, 10:46 AM

Ducimus many thanks for posting, this is great!

(so where's the Fuel Flow meter?

) I guess the RPM gauges are not live.

Cheers!

Ducimus · 07-30-07, 11:53 AM

RPM gauges are at the helmsman station in the control room (forward of the chart table), and behind you in the conning tower. Unfortunatly their not very accurate. Theres 4 of them and they range from 0 to 250. The needle starts measuring before it even hits 0. And then turns totally around ,and pegs soemwhere at what im guessing is around 540 (5XX soemthign) because that is what the max RPM in SH3 was. Im assuming its the same here, despite what the listed RPM in the sim file is saying. Anyway, point is, RPM gagues exist, and the scale on them is way off.

Sailor Steve · 07-30-07, 07:24 PM

Quote:

Originally Posted by Tom C

Quote:

O'Kane did that in Tang...he said to lie to like that took some getting used to!

Steeltrap, did O'Kane say whether he kept all or some diesels idling (instead of shut off), in case he needed to move in a hurry?

I'm still playing the archetypal over-cautious early-war skipper and I see Japanese periscopes under every whitecap!

I don't know what the great one actually did, but engines completely off should be no problem, as the electric motors can accelerate you pretty quickly and you'll want to be diving in that situation anyway.

-Pv- · 07-30-07, 09:12 PM

When I'm eating time in a patrol area waiting for targets to show up and I'm also in an area agressively patrolled by the enemy, I will use 22ft deck awash and set 3 knots diesel speed. This lets me loiter a very long time without giving up mobility, fast acceleration and nearly instant diving time. The wake is minimal at this speed.
Conservation theory asside, it's my practice to conserve very aggressively on the way to the 1st patrol area so I can spend what I've saved being more aggressive and evasive in the patrol area.
-Pv-

Torpex752 · 07-31-07, 06:42 AM

Theres is one more variable that none of us has considered. The ballast tanks. There were 2 ballast tanks that were routinely converted to fuel tanks to extend the subs range capacity. This ability was never "advertised" when discussing the subs range, so most posted data leaves this out.
So I'll see what I can find on its capacity and then maybe that amount should be added to our fuel supply? Just a thought.

Frank "Torpex" Kulick
Subsim Staff

Spruence M · 08-01-07, 11:58 PM

Very nice fuel walk-through. Thanks for the effort.

Fearless · 08-02-07, 02:00 AM

I was just wondering in the .sim file of the sub, distance is shown as "miles". Now 1 nautical mile = 1.15 mile so does that mean for example in the .sim file lets say for the Gato class, 11,800 miles should in fact read 11,800 nautical miles therefore the setting should be 13,570 in the Gato.sim file :hmm:

Just wondering.

Frederf · 08-02-07, 04:21 AM

Quote:

Originally Posted by Fearless

I was just wondering in the .sim file of the sub, distance is shown as "miles". Now 1 nautical mile = 1.15 mile so does that mean for example in the .sim file lets say for the Gato class, 11,800 miles should in fact read 11,800 nautical miles therefore the setting should be 13,570 in the Gato.sim file :hmm:

Just wondering.

Pretty much all "miles" in game should be "nautical miles". It's a good eye and an obvious possibility. The only statute miles should be given in terms of weather visibility which the game doesn't do.

dean_acheson · 08-03-07, 04:34 PM

I guess, what I am wondering is what is the best speed to use from and too area in different boats, using only the patched game and TM 1.4.

Now, how lazy is that?

07-30-07, 08:09 AM	#2
Snuffy XO Join Date: Mar 2007 Posts: 420 Downloads: 5 Uploads: 0	Good Tips Ducimus! Thanks! I for one have always been very conscious of my fuel, realizing that if I wanted to get the boys home to see the girls we needed certain amount of fuel for doing so. Of course now that I'm in July 44 and tenders are showing up all the time as the allied lines advance over the Pacific, (the Marines just took Siapan yesterday! ) so having more places to refit before heading to home is allowing me to take on more and more assignments from HQ. The only times I head home now are if I have damage to the point of batteries not reaching full charge or I have wounded that are taking a long time to recover. Also I don't go home unless HQ tells me too. (After sighting and reporting a contact sometimes HQ says RTB at your discretion.) __________________ ----------------- Snuffy!

07-30-07, 09:47 AM	#5
ReallyDedPoet Canadian Wolf Join Date: Jul 2006 Location: Canada. The one and only, East Coast Posts: 10,893 Downloads: 946 Uploads: 5	Nice Ducimus, just saw this. RDP __________________ Back in the Day

07-30-07, 10:46 AM	#7
sqk7744 Ace of the Deep Join Date: Apr 2007 Location: ~About 60' below Posts: 1,150 Downloads: 7 Uploads: 0	Ducimus many thanks for posting, this is great! (so where's the Fuel Flow meter? ) I guess the RPM gauges are not live. Cheers! __________________ " All Ships can dive, but only Submarine's surface!" MODS: KillFlags - Elco PT109 - AOB Attack Course Tutorial

08-02-07, 02:00 AM	#13
Fearless Ace of the Deep Join Date: Feb 2007 Location: Adelaide, Australia Posts: 1,047 Downloads: 340 Uploads: 1	I was just wondering in the .sim file of the sub, distance is shown as "miles". Now 1 nautical mile = 1.15 mile so does that mean for example in the .sim file lets say for the Gato class, 11,800 miles should in fact read 11,800 nautical miles therefore the setting should be 13,570 in the Gato.sim file :hmm: Just wondering. __________________ Fearless System Specs: AMD Ryzen 7 5800X 8 Core 16 Thread CPU, 3.8GHz Base Clock, 4.7GHz Boost, 105W TDP, 32MB L3 cache \| MSI GeForce RTX3060Ti 8Gb Graphics \| Corsair Vengeance RGB Pro 32Gb (2x16Gb) 3200 MHz CL16 DDR4 Ram \| Samsung 970 Evo Plus NVMe SSD 1TB \| Seagate Barracuda 2.5in 2TB HDD \| AOC QHD 165 Hz FreeSync HDR curved 31.5in Monitor \| ASUS ROG Strix LC 240 ARGB AIO Liquid CPU Cooler White Edition \| ASUS ROG Strix Gold 750W Modular Power Supply \| Corsair iCUE 5000X RGB Tempered Glass Mid Tower Case White.

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07-30-07, 07:45 AM	#1
Steeltrap Grey Wolf Join Date: Mar 2001 Location: Sydney, Australia Posts: 818 Downloads: 3 Uploads: 0	Another thing to consider is this: do I have to go anywhere IN my patrol zone? In other words, having reached your patrol zone there is no actual need to go anywhere until you find a target or have one reported you wish to intercept. That's why I lie motionless on the surface in my patrol zone once I'm in a likely encounter position. O'Kane did that in Tang...he said to lie to like that took some getting used to!

07-30-07, 08:29 AM	#3
pocatellodave Engineer Join Date: May 2005 Location: Pocatello,ID Posts: 203 Downloads: 92 Uploads: 0	Good job Ducimus.Thanks a lot. Pocatellodave

07-30-07, 11:53 AM	#8
Ducimus Rear Admiral Join Date: May 2005 Posts: 12,987 Downloads: 67 Uploads: 2	RPM gauges are at the helmsman station in the control room (forward of the chart table), and behind you in the conning tower. Unfortunatly their not very accurate. Theres 4 of them and they range from 0 to 250. The needle starts measuring before it even hits 0. And then turns totally around ,and pegs soemwhere at what im guessing is around 540 (5XX soemthign) because that is what the max RPM in SH3 was. Im assuming its the same here, despite what the listed RPM in the sim file is saying. Anyway, point is, RPM gagues exist, and the scale on them is way off.

07-30-07, 09:12 PM	#10
-Pv- The Old Man Join Date: Apr 2006 Posts: 1,434 Downloads: 5 Uploads: 0	When I'm eating time in a patrol area waiting for targets to show up and I'm also in an area agressively patrolled by the enemy, I will use 22ft deck awash and set 3 knots diesel speed. This lets me loiter a very long time without giving up mobility, fast acceleration and nearly instant diving time. The wake is minimal at this speed. Conservation theory asside, it's my practice to conserve very aggressively on the way to the 1st patrol area so I can spend what I've saved being more aggressive and evasive in the patrol area. -Pv-

07-31-07, 06:42 AM	#11
Torpex752 Lieutenant Join Date: Mar 2006 Location: Deep River, CT Posts: 255 Downloads: 1 Uploads: 0	Theres is one more variable that none of us has considered. The ballast tanks. There were 2 ballast tanks that were routinely converted to fuel tanks to extend the subs range capacity. This ability was never "advertised" when discussing the subs range, so most posted data leaves this out. So I'll see what I can find on its capacity and then maybe that amount should be added to our fuel supply? Just a thought. Frank "Torpex" Kulick Subsim Staff

08-01-07, 11:58 PM	#12
Spruence M Sonar Guy Join Date: Apr 2007 Location: 14 Meters Posts: 394 Downloads: 29 Uploads: 0	Very nice fuel walk-through. Thanks for the effort.

08-03-07, 04:34 PM	#15
dean_acheson Ace of the Deep Join Date: Mar 2001 Location: Midwest - USA Posts: 1,057 Downloads: 42 Uploads: 0	I guess, what I am wondering is what is the best speed to use from and too area in different boats, using only the patched game and TM 1.4. Now, how lazy is that?