[2] Townsend decided to reverse the standard practice in motor yacht design of having the crew's quarters forward of the engine room and galley and accommodations for the owner and guests aft of them, instead placing the passenger accommodations forward, where they would be free of odors drifting aft from the engine room and galley while Raeo was underway and giving his guests and him access to a large foredeck, while the crew lived in the after part of the vessel and had access to the afterdeck.

[3] She was flush-decked, with a 45-foot (13.7 m) deck unbroken except by the main companionway, ventilation funnels, skylights, masts, and the helmsman′s stand, all of which were on the centerline, with a wide promenade on either side.

[3] She had fresh water tanks with a combined capacity of 800 US gallons (3,000 L; 670 imp gal), enough to last her crew and passengers a month,[3] and an icebox capable of holding a week′s worth of frozen foods.

Assigned to the 2nd Naval District in southern New England and based at Newport, Rhode Island, Raeo carried out patrols through the end of World War I on 11 November 1918 and into 1919.

The Bureau of Fisheries renamed the vessel USFS Kittiwake and placed her in service at the BOF station at Gloucester, Massachusetts, where she performed fish culture work.

[2] After undergoing repairs and an extensive overhaul carried out by the crew of the BOF fisheries science research vessel USFS Halcyon during August and September 1922[5] at the BOF station at Woods Hole, Massachusetts, Kittiwake departed Woods Hole and proceeded to Norfolk, Virginia, where she arrived on 3 November 1922.

[2] With her new engine, Kittiwake proceeded to the Territory of Alaska to begin service as a BOF fishery patrol vessel in the summer of 1923,[2] initially operating in the Cook Inlet and Prince William Sound districts on the coast of Southcentral Alaska, where she transported passengers in addition to carrying out her patrol duties.

In 1942, the U.S. Navy acquired Kittiwake for World War II service,[2] designating her as a yard patrol boat and renaming her USS YP-199.

Until 1997, she operated as Harbor Queen in Puget Sound under five different owners as a passenger, charter, and tour boat, home-ported at various times at Tacoma, Seattle and La Conner, Washington.

Her new owners renamed her Entiat Princess and removed her upper decks so she could be transported to Wenatchee, Washington, where they had her converted into a sternwheeler.