Cobia 285 Open

The tournament-lean 28.

The 285 Open strips the 285 concept toward the fishing side: more open cockpit, more rod storage, a leaner console — a boat set up to leave the inlet early and come back late. If your weekends are white marlin and sea bass more than sandbars, this is the 28-footer Cobia builds for you.

Buy it from the shop that wins Cobia's customer satisfaction crown: #1 CSI for the brand in 2024 and 2026, top-five dealer nationally. Rigged here, serviced here, walkthrough on our YouTube channel before you ever drive down.

Specifications

LOA: 28 ft 5 in
Beam: 9 ft 11 in
Draft: 19 in
Dry weight: 7,250 lbs
Deadrise: 21 deg
Fuel capacity: 231 gal
Max HP: 700 hp

Common questions

How big is the Cobia 285 Open?

28 ft 5 in overall with a 9 ft 11 in beam.

What is the deadrise on the Cobia 285 Open?

21 deg at the transom. A sharper V softens a chop; a flatter one adds stability at rest and shallower draft — where this one sits is part of what a sea trial is for.

What power does the Cobia 285 Open take?

Rated up to 700 hp. RT 113 rigs and water-tests every boat with Yamaha outboards — we are a Yamaha Marine Service Pro Elite dealer.

How much fuel does the Cobia 285 Open carry?

231 gal.

Is the Cobia 285 Open in stock at RT 113?

Not on the lot today — it is built to order, and Joe quotes builds the same day. Inventory turns over weekly, so it is worth asking.

Can I sea trial the Cobia 285 Open before buying?

Yes. RT 113 runs sea trials out of Selbyville, Delaware — on the water, not just around the lot. Book one through the sales desk at (302) 436-1737 or from any listing on this site.

▶ ALL NEW Cobia 285 Open -- Full Walk Through

Also in the Cobia line

Cobia 280 DC — 28 ft
Cobia 285 CC — 28.5 ft
Cobia 305 CC — 30.5 ft

How the Cobia 285 Open sits in the Cobia line

Figures from Cobia's published specifications and the hulls on our lot. A blank means we do not hold that number yet.
Model	LOA	Beam	Draft	Deadrise	Fuel capacity	Max HP
Cobia 285 Open	28 ft 5 in	9 ft 11 in	19 in	21 deg	231 gal	700 hp
Cobia 280 DC	27 ft 7 in	9 ft 6 in	23 in	21 deg	172 gal	600 hp
Cobia 285 CC	28.5 ft	9 ft 11 in	19 in	21 deg	231 gal	700 hp
Cobia 305 CC	30 ft 5 in	10 ft 6 in	21 in	21 deg	265 gal	800 hp

This model

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Colors, power options, what a build takes, what your trade is worth — ask away and you'll get a straight answer from someone who sells this boat every week.

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(302) 436-1737

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