Design

Union Jack

A 30 ft 11 in steel semi-displacement trawler yacht from Glen-L Marine in 10 gauge plate, running 7 to 8.5 knots on a 40 to 70 hp diesel with a half-inch steel skeg protecting the gear. Full walkaround decks with bulwark, a private forward stateroom, a head with shower, berths for five, and a choice of cruiser or transom stern.

Needs a welder, or a welded hull to finish. Expect 3,500 to 5,000 hours including the interior. Median hours from logged builds appear below.

What building a Union Jack actually takes

Medians from the build logs kept on this site, not the designer’s estimate. Nobody has logged this boat here yet, so they are empty until the first builder does.

Build logs

Launched

n/a

Median hours

n/a

Median months

Those medians firm up as more people log this boat.

Builds of this boat

Nobody has logged a Union Jack here yet.

If you are building one, yours becomes the reference: the page the next person building this boat finds when they search for it. One photo and one line is a valid first entry.

Start the first log of this boat

Boats like this one

Same type, closest in length.

Design	Plans from	LOA
Pyladian 31	Devlin	31′ 0″ (9.45 m)
Jack Tar	Glen-L Marine	31′ 1″ (9.47 m)
Carolina Angler	Glen-L Marine	30′ 8″ (9.35 m)
Bandido	Glen-L Marine	30′ 2″ (9.2 m)
Black Crown 30	Devlin	30′ 0″ (9.14 m)
Czarinna 30	Devlin	30′ 0″ (9.14 m)