Not sure if this makes me more or less comfortable. I asked the machine to run the numbers from the current position to Ensenada, assuming I motor half the distance at about 1,800 RPM and sail the other half. About five hundred and eighty-four nautical miles direct. Motor half is two hundred and ninety-two nautical miles at six knots, which is roughly forty-eight and a half hours. Fuel at 0.8 gallons per hour comes to about thirty-nine gallons. The SO409 tank holds fifty-three, leaving fourteen gallons of headroom before the practical reserve.

Total passage time depends on the sailing average for the other half. Five knots gives about a hundred and seven hours, four-and-a-half days. Six gives about ninety-seven, just over four days. Seven gives about ninety, just under four. Fuel plan: about thirty-nine gallons of planned burn, with a practical reserve of eleven to thirteen, which fits. If I end up motoring more because of calms or headwinds, add roughly five gallons per extra six hours at 1,800 RPM. The nice thing about the math is that it does not lie, even when you wish it would.