By A Hair!

[Bubblehead1980]

Originally Posted by Sailor Steve

Fair enough. Your're probably right. On the other hand, the fact that they could do that doesn't change the fact that the boat's best economy is still at 10 knots. I believe Ducimus was wrong about that and I said so at the time.


Maybe you aren't the one to talk about black and white. In the previous discussion I backed off and tried to turn it into an open discussion about the problems of one versus the other, and it turned into a fairly interesting conversation, which you dropped out of. When you came back your contribution was "They said they did it, and that's good enough for me", which is fine, but much more black-and-white than anything I said.

So, maybe they did and maybe they didn't. You're probably right. Sorry I intruded.

I was simply saying they did in fact cruise at 15 knots usually since they had extra fuel and could make the pit stop at Midway etc, the Gato/Balao/Tench boats could do so.I did not dispute that 10 knots is prob their best fuel economy, no doubts many slowed down usually to save fuel once in the area, of course different variables would dictate this but 15 was a nice balance to cruise to an area and home, cut transit time down a bit.

Well in the previous discussion I felt we were at a stalemate because while I understood the black and white side of things, ie the tech data said the top speed was 20.25 knots, several of the men who were actually there have authored accounts saying when operating outside the black and white of tech specs in the real world, they had pushed their boats to make an extra 2 or 3 knots when in emergencies that called for it.I tend to trust someone's first hand account as long as their word is solid and not talking something that is impossible, which getting a little extra performance from machinery via different methods is not unheard of.However, you still disagreed, I felt there was no way to change your mind and so I decided to just let it go.

No need to apologize, you were no intruding, no problem with you contributing, nothing personal on my end just felt when I was corrected in error I needed to respond, as I did.

[Sailor Steve]

Originally Posted by Bubblehead1980

I was simply saying they did in fact cruise at 15 knots usually since they had extra fuel and could make the pit stop at Midway etc, the Gato/Balao/Tench boats could do so.I did not dispute that 10 knots is prob their best fuel economy, no doubts many slowed down usually to save fuel once in the area, of course different variables would dictate this but 15 was a nice balance to cruise to an area and home, cut transit time down a bit.

I completely agree. On the other hand I don't think setting the best fuel usage for 15 knots is an accurate answer to the problem.

Well in the previous discussion I felt we were at a stalemate because while I understood the black and white side of things, ie the tech data said the top speed was 20.25 knots, several of the men who were actually there have authored accounts saying when operating outside the black and white of tech specs in the real world, they had pushed their boats to make an extra 2 or 3 knots when in emergencies that called for it.I tend to trust someone's first hand account as long as their word is solid and not talking something that is impossible, which getting a little extra performance from machinery via different methods is not unheard of.However, you still disagreed, I felt there was no way to change your mind and so I decided to just let it go.

But I didn't still disagree. I ended up making a lengthy post about the problems involving both sides of the question, to which you wouldn't take part, except to say you believed one side and had no problem. I'm sorry to keep bringing this up, but we obviously have different definitions of "black & white".

No need to apologize, you were no intruding, no problem with you contributing, nothing personal on my end just felt when I was corrected in error I needed to respond, as I did.

And you were right to.

[Bubblehead1980]

Originally Posted by Sailor Steve

I completely agree. On the other hand I don't think setting the best fuel usage for 15 knots is an accurate answer to the problem.


But I didn't still disagree. I ended up making a lengthy post about the problems involving both sides of the question, to which you wouldn't take part, except to say you believed one side and had no problem. I'm sorry to keep bringing this up, but we obviously have different definitions of "black & white".


And you were right to.

I forgot to note that 15 knots really is not the best fuel, its just a decent trade off for speed and fuel esp when in transit to area. 10 knots will still get you better range in TMO i've found, just use the use the button that gives you max range at speed.I usually if far from base cruise in at 15, then drop to 12 knots to conserve fuel but cover patrol area on a reasonable time table.

[torpedobait]

Originally Posted by Bubblehead1980

I forgot to note that 15 knots really is not the best fuel, its just a decent trade off for speed and fuel esp when in transit to area. 10 knots will still get you better range in TMO i've found, just use the use the button that gives you max range at speed.I usually if far from base cruise in at 15, then drop to 12 knots to conserve fuel but cover patrol area on a reasonable time table.

Bubblehead, which button is that? I'm in TMO2.2. Thanks!

[Bubblehead1980]

Originally Posted by torpedobait

Bubblehead, which button is that? I'm in TMO2.2. Thanks!

Ahead Standard is 15 knots....clock "Standard" on the telegraph.To set speed manually, click on the bottom of the telegraph and will bring up the "knot-o-meter" with different speeds ranging from 0-24(even though it can never make 24 knots, settting it at 24 will give you max power i've found) then set desired speed.

[WernherVonTrapp]

Originally Posted by torpedobait

Bubblehead, which button is that? I'm in TMO2.2. Thanks!

It's under the Navigation tools on the lower left. Click on the button (with the compass icon) and this will bring up the navigation buttons. Mousing over the buttons will reveal their functions and you then choose the one that says "Max range at current speed."

[Daniel Prates]

Originally Posted by torpedobait

Bubblehead, which button is that? I'm in TMO2.2. Thanks!

You have to set 10kts this way, because if you simply punch in 'ahead standard', you get a constant RPM and not a constant speed. And as weather and currents change, you get variable speeds - and thus consumption.