What is up with the estimated range based on existing fuel and speed?

[M. Sarsfield]

There's a mod that fixes the fuel estimation and usage. It's the same mod that adjusts how high the boat rides in the water. I really like it a lot.

[Sgian Dubh]

Hi all,

Thanks for all of the comments, but I have been checking and I still seem to have an odd problem here.

I have a Gato in mid 1942.

I refuled/rearmed at Midway and set a course for the southern tip of Formosa, as this is the designated point. I used a straight-line plot from Midway to the destination, checking for any shallow spots over the route.

I run 2/3 on surface at night and 1/3 submerged.

I watched each "day" to see if the battery charge light went off, and it did. I also have checked and re-checked the damage control station - I have no indicated damage. I never took any damage earlier in the mission that I can recall. I checked the save game and damage is set to 0.000000 (I forget how many zeros).

The problem is that by the time I reach 128 E Longitude (south of the western side of the Ryukyu islands) I am at 50% of deisel fuel. I will be at about 45% (at best) by the time I make it to station.

So without running any patterns, I am already unable to return to Midway due to insufficient fuel.

Again, I watched the battery charge light extinguish at the end of each charging cycle and I can find no indication of any damage whatsoever.

After a great start to a career, it looks like I am goingto have to scrap it and restart.

This is a fresh 1.4 install with TM 1.7.6 installed via JSGME. I have made no other modification to the installation.

Any further ideas? I don't have much incentive to start a new campaign until I understand why this is happening.

Thanks,

[Quillan]

Trigger Maru changes the default speeds, right? I was using ROW before I installed TM so I'm not certain. Assuming it does, that puts you going roughly 8.5 knots on the surface assuming calm conditions and 1.8 or so knots submerged, right? You should be able to get there on considerably less than that. Admittedly it's a different boat, but in a Balao leaving Midway, sailing west until beyond a 500 nm circle centered on Wake Island, then heading SW to the Luzon Straits, I can get there with roughly 75% diesel remaining. Now, I am running surfaced at Ahead 2/3 almost all the time. I submerge for an hour or so anytime I pick up aircraft, so many days I am on the surface the entire time.

[Sgian Dubh]

Originally Posted by Quillan

Trigger Maru changes the default speeds, right? I was using ROW before I installed TM so I'm not certain. Assuming it does, that puts you going roughly 8.5 knots on the surface assuming calm conditions and 1.8 or so knots submerged, right? You should be able to get there on considerably less than that. Admittedly it's a different boat, but in a Balao leaving Midway, sailing west until beyond a 500 nm circle centered on Wake Island, then heading SW to the Luzon Straits, I can get there with roughly 75% diesel remaining. Now, I am running surfaced at Ahead 2/3 almost all the time. I submerge for an hour or so anytime I pick up aircraft, so many days I am on the surface the entire time.

Thanks.

It appears that something has become SNAFU.

Although I hate to do it, I am going to re start a new career.

On the bright side, I am going to add RSRDC for TM to my installation and I am also going to add in the mod mentioned above that tweaks the endurance (amoungst other things) of the subs. Really the most frustrating thing is the amount of time invested - but that is part of the reality of high-end simulations. Lord knows how much time I've spent in Falcon4 and IL2 sorting things out.....

[raymond6751]

Make sure that you have turned off the battery charge before doing the range check. It will/should turn off automatically when it is charged up, but if a diesel is being used to recharge - your range calculation will be off.

It takes fuel to recharge. The calculation won't take into account if you are going to charge all the way home or not. Turn it off.

[ElAurens]

The most economical speed in the Fleetboats is 10 knots, which you have to set by switching from the standard telegraph to the knot meter, then use the cursor to select the speed. The telegraph will still indicate 2/3 ahead when you switch back.