Mayflower - Wikipedia

On September 6, 1620, the Mayflower departed Plymouth, England with 102 Pilgrims and about 30 crew for the New World. From the article:

"In early September, western gales began to make the North Atlantic a dangerous place for sailing. The Mayflower's provisions were already quite low when departing Southampton, and they became lower still by delays of more than a month. The passengers had been on board the ship for this entire time, and they were quite worn out and in no condition for a very taxing, lengthy Atlantic journey cooped up in cramped spaces in a small ship. But the Mayflower sailed from Plymouth on September 6, 1620 with what Bradford called "a prosperous wind".[17]

Aboard the Mayflower were many stores that supplied the pilgrims with the essentials needed for their journey and future lives. It is assumed that they carried tools and weapons, including cannon, shot, and gunpowder, as well as some live animals, including dogs, sheep, goats, and poultry. Horses and cattle came later. The ship also carried two boats: a long boat and a "shallop", a 21-foot boat powered by oars or sails. She also carried 12 artillery pieces (eight minions and four sakers), as the Pilgrims feared that they might need to defend themselves against enemy European forces, as well as the natives.[18]

The passage was a miserable one, with huge waves constantly crashing against the ship's topside deck until a key structural support timber fractured. The passengers had already suffered agonizing delays, shortages of food, and other shortages, and they were now called upon to provide assistance to the ship's carpenter in repairing the fractured main support beam. This was repaired with the use of a metal mechanical device called a jackscrew, which had been loaded on board to help in the construction of settler homes. It was now used to secure the beam to keep it from cracking further, making the ship seaworthy enough.[18][19]

The crew of the Mayflower had some devices to assist them en route, such as a compass for navigation, as well as a log and line system to measure speed in nautical miles per hour (knots). Time was measured with the ancient method of an hourglass."