Everyone tells me that I need a proper diesel engine to cross an ocean safely. Somehow having a motor makes it “safe” and not having a motor (or having an electric motor) makes it “un-safe”. Perplexed, I asked what is unsafe about sailing across an ocean and how would a motor fix these safety concerns.
According to this person (who I wonder if they have ever done any plotting work at all), the safety concern comes from “getting lost".
Apparently, when you are sailing across an ocean, you have to sail in a straight line. If the winds are not permitting this direction, you need to lower your sails and motor into the wind, always maintaining this very exact course. If you falter from the course, you will get lost at sea and DIE!
All I can imagine is that this person has no charts and is merely following a specific compass heading. If he gets off course, he is lost and would then die alone at sea! The truth is, charts are a mandatory item to carry on the boat, along with all the necessary equipment needed to plot your position at sea.
While electronic charts are convenient, you still need to carry paper charts with you so that you can navigate even if all Hell breaks loose! Imagine getting struck by lightening, frying all your electronics, then a wave splashes into the boat and all your remaining electronic gizmos get soaking wet with saltwater and perish. If this is all you have for navigation, then you will soon fall into the guys narrative about why you need a diesel. If you have paper charts, then you will be able to navigate mostly accurately after you dry out the papers that got wet with that same wave. The ink might run and smudge, but you can still generally see where you are and where you are going!
Now, why is it Not un-safe to sail across an ocean without a proper diesel motor? Because course is kind of a joke on long passages. Imagine that you are sailing from the United States to Europe. What heading would you need to sail? 64*, 77*, 90*?
The correct answer is: “No one cares!”
Europe is East from the United States, so when you leave port, you will sail as far from land as you can, then head East. If the winds take you a bit North, then you will sail North East for a while. If the winds blow you a bit South, then you will sail South East for a while. Eventually, you will cross the Atlantic Ocean by sailing East with the winds you have as they are presented to you.
Let me explain with some actual numbers. Lets say you are leaving from either Charleston, SC or Southern Florida. These two points are 350 nautical miles apart, yet if you leave from either of them heading for Lisbon (and assuming there is no land in the way) your course will not be very different.