On-land and on-water improvements at Pendennis just got the green light.

The yearlong refit of m5, formerly known as Mirabella V, is about six months into completion at Pendennis Plus , Pendennis’ refit facility. The world’s largest sloop, at 247 feet (72.5 meters), will be nearly 257 feet LOA, or about three meters longer, upon completion—and as the photos here show, that extension is already well on its way to being finished

PHOTO: Superyacht Media Plenty has been written about how the all-aluminum Hemisphere is the world’s largest sailing catamaran.

PHOTOS: RICHARD LANGDON (A2 ON WATER); NICK BAILEY/PENDENNIS (A2 INTERIORS) She arrived as a 139-footer, and she departed as a 154-footer. That’s among the things that happened when Masquerade of Sole (immediately above) underwent a several-months-long refit at Pendennis .

This week the annual The Pendennis Cup is being held, and in typical fashion the British summer is treating competitors to everything from fog to sun and choppy seas to calmer ones. Even with that, the 13 superyachts sailing in The Pendennis Cup seem undeterred from trying to take top honors overall.

Pendennis welcomed one superb superyacht, Mirabella V, in for a refit while it was getting ready to say goodbye to another, Heavenly Daze. When Pendennis announced in March that its Pendennis Plus division was to refit Mirabella V, being renamed M5 , our website lit up like a Christmas tree.

She arrived in Falmouth, England over the weekend with Mirabella V painted on her transom, but she’ll leave in about 12 months with M5 there instead. This, thanks to a yearlong refit taking place at Pendennis Plus . Known as the world’s largest sailing sloop since her launch in 2004, the 247-foot (75.2-meter) Mirabella V is getting a thorough makeover both inside and out

One of the world’s most famous and oldest megayachts recently wrapped up a refit at Pendennis’ Pendennis Plus yard. The 233-foot Dona Amélia , formerly known as Haida G , spent four months in the UK-based facility

On the heels of christening the largest private motoryacht ever built in the UK, Pendennis is rebranding the Devonport Yachts facility in Falmouth. Over the weekend the megayacht code-named P55 became formally known as Vava II