18' Downeaster Runabout Plans | Small Boats Magazine

18' Plywood Runabout, Downeaster

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The Downeaster 18 is arguably the all-American boat in this catalog of boat plans, the kind of craft one sees on any major body of water here-fresh or salty-or on the road heading for it. However, at least three features distinguish Downeaster from most production powerboats in the 18′ range, currently in circulation.

Particulars and outboard profile

First, we think she is much better looking. Second, she is certainly more versatile-as a hull for all waters, especially choppy ones; and in the two arrangements available (a runabout with split windshield and convertible top, or a center-console fisherman with canvas dodger).

Third, she can be built at home using standard plywood construction over sawn frames, and requiring no steam bending or complex carpentry. Moreover, WoodenBoat documented the building of a Downeaster in three successive issues of the magazine (WoodenBoat Nos. 73, 74, and 75), amounting to a virtual how-to-build workbook for this boat.

Line drawing of the arrangement plan for the Downeaster Runabout

In the standard outboard runabout version, Downeaster also features full-width seats forward and aft (with plenty of open space in between), a self-bailing motorwell, and sufficient decking forward and along the sides to help keep the interior, the crew, and the day’s gear reasonably dry. Power range is 40-100 hp; a 75-hp unit can readily deliver 30 mph. The same characteristics that make the boat swift and responsive (narrow, deep-V hull) make her very suitable for waterskiing, as well. With an appropriate tow-bar setup, Downeaster will make an excellent ski boat.

The boat has satisfied these critical design criteria: handsome appearance; economy and durability of construction; and a hull form that gives good performance underway, at all speeds and in a variety of sea conditions. In addition, the Downeaster 18 is burdensome in the best sense: this boat will carry six persons-safely and comfortably.

Inboard profile

The 18′ Downeaster Runabout plans are well detailed on five sheets: lines and offsets, construction sections, a construction plan, and arrangements for both the utility runabout and center console models. WoodenBoat Plan No. 71. $90.00.

Line drawings for the Downeaster Runabout sheer and body plans.

Plan 71
DESCRIPTION
Hull type: V-bottomed
Construction: Plywood planking over sawn frames

PERFORMANCE
Suitable for: Somewhat protected waters
Intended capacity: 2-6 day cruising
Trailerable: Yes
Propulsion: 40-100 hp outboard
Speed: 26-40 mph

BUILDING DATA
Skill needed: Basic to intermediate
Lofting required: Yes
Alternative construction: None
“How to build” instructions: WoodenBoat Nos. 73, 74 & 75

PLANS DATA
No. of sheets: 5
Level of detail: Above average
Cost per set: $90.00
WB Plan No. 71