Electric Engine Question

10-24-10, 09:38 AM

Quote:

Originally Posted by raymond6751

I have had to spend time submerged on long voyages so that I could conserve diesel fuel. It would be better surfaced.

I'm just waking up and kinda fuzzy right now, but why is this? Waves and so forth, tend to slow you down on the surface and lower your fuel economy. I would rather just use the batteries underwater if I'm after fuel economy.

However, for emergencies it would be nice to have the option to use them on the surface.

timmy41 · 10-24-10, 01:25 PM

Quote:

Originally Posted by Hans Uberman

I'm just waking up and kinda fuzzy right now, but why is this? Waves and so forth, tend to slow you down on the surface and lower your fuel economy. I would rather just use the batteries underwater if I'm after fuel economy.

However, for emergencies it would be nice to have the option to use them on the surface.

uhhh....how would pushing a uboot through a solid medium of water be more efficient than pushing a uboot over said medium in which only half of the boat is meeting resistance?

10-24-10, 01:48 PM

Waves carry kinetic energy.
Why do people dive under waves when swimming away from shore?
Cause it's easier.

The same applies to a Sub surfaced or submerged.
We can have a lesser Mass exert a greater force then a greater Mass.

timmy41 · 10-24-10, 01:53 PM

Quote:

Originally Posted by privateer

Waves carry kinetic energy.
Why do people dive under waves when swimming away from shore?
Cause it's easier.

The same applies to a Sub surfaced or submerged.
We can have a lesser Mass exert a greater force then a greater Mass.

only the type 21 is more hydrodynamic underwater than above
additionally, despite how it looks, that kinetic energy is not going against the submarine, its going up and down.

10-24-10, 02:27 PM

Remember we're talking about the game, and how it does things, not necessarily real life physics, or how it should be.

In-game during a storm, you go slower while producing the same amount of energy (e.g. - one third power), but underwater you go the same speed as always. I think the game simply considers underwater to be far more calm, and doesn't alter the speed in any way. As far as the game is concerned, on the surface, rough waters slow you down, underwater there is no effect simulated from currents, waves, or other phenomenon.

Also, while waves are generally moving up and down, they do indeed forward to a degree. Boats not only go partially through waves, but expend energy traveling up them.

Freiwillige · 10-24-10, 06:58 PM

Not to mention the loss of propulsion when your props are out of the water.

Still except in the most severe weather the U-boots (Excluding XXI) are more efficient on the surface.

If you use your battery's up just keep in mind that fuel is burnt and efficiency is lost while one motor is used to charge them.

10-24-10, 02:27 PM	#5
Hans Uberman Stowaway Posts: n/a Downloads: Uploads:	Remember we're talking about the game, and how it does things, not necessarily real life physics, or how it should be. In-game during a storm, you go slower while producing the same amount of energy (e.g. - one third power), but underwater you go the same speed as always. I think the game simply considers underwater to be far more calm, and doesn't alter the speed in any way. As far as the game is concerned, on the surface, rough waters slow you down, underwater there is no effect simulated from currents, waves, or other phenomenon. Also, while waves are generally moving up and down, they do indeed forward to a degree. Boats not only go partially through waves, but expend energy traveling up them. Last edited by Hans Uberman; 10-24-10 at 03:07 PM.

10-24-10, 01:48 PM	#3
Madox58 Stowaway Posts: n/a Downloads: Uploads:	Waves carry kinetic energy. Why do people dive under waves when swimming away from shore? Cause it's easier. The same applies to a Sub surfaced or submerged. We can have a lesser Mass exert a greater force then a greater Mass.

10-24-10, 06:58 PM	#6
Freiwillige The Old Man Join Date: Mar 2008 Location: Phx. Az Posts: 1,458 Downloads: 24 Uploads: 0	Not to mention the loss of propulsion when your props are out of the water. Still except in the most severe weather the U-boots (Excluding XXI) are more efficient on the surface. If you use your battery's up just keep in mind that fuel is burnt and efficiency is lost while one motor is used to charge them.