The multihull vessel, consisting of a main hull and two out-rigging hulls, had experienced engine failure two nautical miles north of Black Head on northern shores of Belfast Lough.
Within minutes of the rescue pagers being activated, the volunteer crew had launched the lifeboat, which proceeded at full speed towards the stricken vessel.
Upon arrival, the crew found that the two people on board the yacht were experienced yachtsmen. They had followed procedure and made the correct decision to call for assistance at the first sign of trouble.
With weather conditions on scene deteriorating, and a moderate to rough sea state, one of the lifeboat crew was transferred to the yacht to assist in rigging a tow line.
The vessel was then taken under tow and after two-and-a-half hours arrived safely at Bangor Marina.
RNLI volunteer helmsman Connor Lawson used this rescue to highlight a RNLI safety message when he said: "We always urge everyone going afloat to make sure their engine and fuel systems and are well maintained and in good working order.
"Engine failure close to shore and commercial shipping routes could lead to a life threatening situation."
He added: "We're happy that everyone is now safely ashore."