I have a deisel, steam amd boiler engineer ticket.
Twenty three years sea service on Navy vessels.
In all that time i have not seen any system to cool fuel.
In fact i have seen the reverse, fuel heating to allow pumping and transfer and for cleaning.
If the ship is so sensitive to fuel ecconomy...
As most machinary vibrates and the hull is meant to sit still use lots of flexible bellows and gaskets. this will also give the galvanic insulation along with thermal and noise insulation.
Done this more than once because of battle damage.
We build a coffer dam with rubber seals around the edge, fabricated to the curve of the hull.
water pressure helps hold the dam in place although this can be helped with canvas and ropes.
Pump out the dam with suitable pumps and leave open...
With darts and arrows the fins are used to create spin as this increases accuracy,(ballistics)
To stop the probe spinning copy what the free divers do and put a weighted cable down and slide the probe on hoops down this.
If the vessel is moving add fins to the weight and probe acting like a...
Before changing the drive train think about cavitation.
It could be possible to get what you want by using the deisel torque abilities and just fit a larger prop.
The gearbox should match best power from the engine or prime mover to efficent rpm of propellor.
Power should be matched to hull...
The problems with roborts is the same as long distance warfare, there is no second though before killing. At close quarters you have to look into a man eye but on a TV screen you can not see the fear or conviction of the cause. It is the same having politicians that have never served as head of...
