Between 1738 and 1750 Manin and Sterlegoff made their way in small sloops from the mouth of the Yenesei as far north as 75° 15' N.
The land forces were supported by a river fleet consisting (in 1479) of 360 vessels, mostly sloops and corvettes, manned by 2600 sailors, generally Croats, and carrying 10,000 soldiers.
Sloops, fire - ships, bomb-vessels and royal yachts were said to be not rated.
The expedition, including naturalists, botanists, a mineralogist, taxidermists, a philologist, &c., was carried by the sloops-of-war "Vincennes" and "Peacock," the brig "Porpoise," the storeship "Relief" and two tenders.
Sloops of an excellent type were built for work on the high seas, of which the celebrated "Kearsarge" was one.
The forces actually available on the American side when the war began consisted of a small squadron of very fine frigates and sloops in an 5 efficient state.
In November 1805 he was raised to the rank of admiral; and in the summer of 1807, whilst still a lord of the admiralty, he was appointed to the command of the fleet ordered to the Baltic, which, in concert with the army under Lord Cathcart, reduced Copenhagen, and enforced the surrender of the Danish navy, consisting of nineteen ships of the line, besides frigates, sloops, gunboats, and naval stores.
The remainder of the expedition, employing several small sloops, did a great deal of useful work.