Sybilla III remained in Betz's ownership until sale in 1935 to R. Livingston Sullivan of Philadelphia who renamed the yacht Arlis.

The yacht was designed by Swasey, Raymond & Page, Boston, somewhat along the lines of the U.S. Navy torpedo destroyers.

He maintained moorings for his yachts near his 1,000 acres (404.7 ha) North Kingstown, Rhode Island estate "Wildacres" which composed most of Quonset Point.

In keeping with its naval look there was a polished and enameled functional quick firing gun mounted aft.

[15] The Navy acquired Arlis from Sullivan for $70,000 on 12 August 1940, converted the yacht at a cost of $50,000 and commissioned the vessel USS PC-454 on 16 October with assignment to the 15th Naval District.

On 31 August 1944, the patrol yacht arrived in Philadelphia and was decommissioned there on 27 September, struck from the Naval Register on 14 October and sold by the War Shipping Administration on 14 June 1945.