“Came under the bottom of the ship”

After his brother Ezra Bushnell fell ill, the inventor David Bushnell asked Gen. Samuel Holden Parsons to send three men who might be able to operate his submarine against the Royal Navy in New York harbor.

Parsons already had a list of volunteers ready to sail a fireship toward the fleet, another risky venture. One of them was his brother-in-law, Sgt. Ezra Lee (1749–1821, shown here).

Bushnell brought the machine back to Saybrook, Connecticut, for the three men to practice. Eventually Lee got the assignment. His mission: Screw a timed explosive charge (Bushnell’s other invention, called the “magazine”) to the hull of H.M.S. Asia.

Lee went into action on 6 Sept 1776, 250 years ago today. Decades later, in 1815, he wrote an account of his mission for David Humphreys:

We set off from the City—the Whale boats towed me as nigh the ships, as they dared to go, and then cast me off—I soon found that it was too early in the tide, as it carried me down by the ships—I however hove about, and rowed for 5 glasses, by the ships’ bells, before the tide slacked so that I could get along side of the man of war, which lay above the transports—

The Moon was about 2 hours high, and the daylight about one—when I rowed under the stern of the ship, could see the men on deck, & hear them talk—I then shut down all the doors, sunk down, and came under the bottom of the ship, up with the screw against the bottom but found that it would not enter—

I pulled along to try another place, but deviated a little one side, and immediately rode with great velocity, and come above the surface 2 or 3 feet between the ship and the daylight—then sunk again like a porpoise I hove partly about to try again, but on further thought I gave out, knowing that as soon as it was light the ships boats would be rowing in all directions, and I thought the best generalship, was to retreat, as fast as I could as I had 4 miles to go, before passing Governor’s Island.—

So I jogg’d on as fast as I could, and my compass being then of no use to me, I was obliged to rise up every few minutes to see that I sailed in the right direction, and for this purpose keeping the machine on the surface of the water, and the doors open—

I was much afraid of getting aground on the island as the Tide of the flood set on the north point While on my passage up to the City, my course owing to the above circumstances, was very crooked & zig zag, and the enemy’s attention was drawn towards me, from Governors Island—

When I was abreast of the fort on the island 3 or 400 men got upon the parapet to observe me,—at leangth a number came down to the shore, shoved off a 12 oar’d barge, with 5 or 6 sitters, and pulled for me—I eyed them, and when they had got within 50 or 60 yards of me, I let loose the magazine, in hopes, that if they should take me, they would likewise pick up the magazine, and then we should all be blown up together, but as kind Providence would have it, they took fright, and returned to the island, to my infinite joy.—

I then weathered the Island, and our people seeing me, came off with a whaleboat, and towed me in—

The Magazine after getting a little past the Island, went off with a tremendous explosion, throwing up large bodies of water to an immense height.

On seeing that explosion, Humphreys wrote, Gen. Israel Putnam shouted, “God’s curse ’em, that’ll do it for ’em.” But the bomb merely startled the enemy, not doing any physical damage.

Why hadn’t Sgt. Lee been able to attach that bomb to H.M.S. Asia as planned? Humphreys explained:

The reason why the screw would not enter, was that the ship’s bottom being coppered it would have been difficult under any circumstances to have peirced through it—but on attempting to bore with the auger, the force necessary to be used in pressing against the ships bottom, caused the machine to rebound off

In this series about David Bushnell and his submarine, I’ve cut down long letters that the U.S. Navy has collected on this website. Though the submarine was a top-secret operation in 1776, men like Humphreys and Thomas Jefferson made a concerted effort after the war to gather information about the machine and its operation.

Authors have written several books about the submarine. I’m linking to Arthur S. Lefkowitz’s The American Turtle Submarine because he gave me a nifty cap.