Atkin Flying Saucer — Information, Review, Specs

William Atkin·1949
Atkin Flying Saucer drawingBuilder drawing
Hull type
Monohull · bulb
Rig
Fractional Sloop
LOA
17.83' · 5.43 m
Displ.
800 lbs · 363 kg
First year
1949

Designed by the prolific William Atkin in the late 1940s, the Flying Saucer is a classic 13foot plywood utility boat that represents the golden era of homebuilt nautical craft. Specifically categorized as a scowtype outboard hydroplane, the design was originally published in Motor Boating magazine, intended for the amateur builder seeking a mix of speed, stability, and simplicity. Unlike many highstrung racing hydroplanes of its era, the Flying Saucer features a Vbottom and a relatively wide beam of 4 feet 10 inches, providing a level of utility that allows it to serve as a family runabout as easily as a speedster. Detailed archives of the design remain available through Atkin & Co., the primary historical repository for the designer’s extensive portfolio.

Measurements

Dimensions 01

LOA
17.83 ft
LWL
16 ft
Beam
4.67 ft
Draft
2.65 ft
Max headroom
-
Air draft
-

Construction & hull 02

Construction
Wood
Hull type
Monohull
Keel type
Bulb
Rudder
1× —
Ballast
210 lbs
Displacement
800 lbs
Water
-
Fuel
-

Rig & sails 03

Rig type
Fractional Sloop
P · main luff
-
E · main foot
-
I · fore ht.
-
J · fore base
-
Forestay (est)
-
Sail area
152 sqft

Calculations 04

SA/D ratio
28.22
Ballast/Disp.
26.25
D/L ratio
87.19
Comfort ratio
9.58
Capsize screening
2.01
Hull speed
5.36 kn

Performance & Handling

The Flying Saucer is engineered to plane quickly with modest horsepower, a hallmark of William Atkin’s philosophy of efficiency. While the original plans suggested outboards in the 5 to 10 horsepower range—yielding speeds between 15 and 20 miles per hour—modern builders often reinforce the transom to accommodate 15 to 25 horsepower engines. Because of its scow-like bow and V-bottom forward, the boat handles chop with significantly more grace than a flat-bottomed punt or a dedicated three-point hydroplane.

In turns, the boat exhibits the characteristic "skid" of a shallow-draft hull but remains predictable due to its generous beam. It does not track with the aggressive "locked-in" feel of a deep-V hull, but rather dances over the surface. Owners often note that the boat is highly sensitive to weight distribution; keeping the bow light is essential for achieving a clean plane, while passengers should be centered to maintain lateral stability. The hull's 4-inch draft allows it to operate in extremely shallow waters, making it an excellent choice for exploring tidal flats or inland lakes.

The Flying Saucer owes much of its longevity to its appearance in the "Build-a-Boat" series featured in mid-century maritime periodicals. It was part of a wave of designs that democratized powerboating for the post-war middle class. While it hasn't starred in major cinema, it is a staple of the WoodenBoat Forum and similar traditional craft communities, where it is frequently cited as an ideal "first-build" project for those transitioning from rowing shells to powered vessels. The design is also a regular participant in "Antique and Classic Boat Society" (ACBS) events, often appearing as a pristine example of amateur plywood craftsmanship.

Known Issues & Buyer’s Checklist

For those looking to purchase a vintage Flying Saucer or evaluate a recent home-build, technical scrutiny should focus on the limitations of plywood construction and mid-century design.

  1. Transom Structural Integrity: Original plans called for 3/4-inch mahogany or oak. If a previous owner installed a modern, heavier outboard without adding knee braces or reinforcing the transom-to-hull joints, stress cracks are likely.
  2. Plywood Delamination: Because these boats are often stored on trailers or in garages, "dry rot" or delamination of the plywood skins (especially at the chine and the stem) is common. Check for soft spots where water may have sat in the bilge.
  3. Seam Leaks: The Flying Saucer relies on mechanical fasteners and often traditional bedding compounds. If the boat has not been "soaked up" or if the fiberglass sheathing (a common modern modification) has cracked, water ingress at the keel and chines is a primary concern.
  4. Fastener Fatigue: Older hulls built with bronze or galvanized screws may suffer from "sick" fasteners. If the heads are weeping rust or green verdigris, the hull’s structural cage may be compromised.

Community & Resources

The primary resource for this model is Atkin & Co., which continues to sell the original offset tables and construction drawings. This site serves as a technical wiki for the brand, offering insights into the designer's intent and material specifications. Additionally, the Mystic Seaport Museum holds a significant collection of Atkin’s papers and designs, providing a historical anchor for researchers interested in the provenance of the Flying Saucer and its siblings, such as the Noyes utility and the Shoals runabout.

The Verdict

The Atkin Flying Saucer is a charming, nostalgic vessel that offers a visceral connection to the water that modern fiberglass boats cannot replicate.

Pros

  • Ease of Construction: A straightforward project for amateur woodworkers.
  • Efficiency: Planes with very low horsepower, keeping fuel costs negligible.
  • Stability: The scow-style hull is much more stable at rest than narrower racing hulls.
  • Aesthetic: Captures the "Atomic Age" maritime aesthetic perfectly.

Cons

  • Maintenance: Requires regular varnish or paint work to protect the plywood.
  • Limited Capacity: Though a "utility," it realistically only seats two adults comfortably.
  • Weight Sensitivity: Performance drops off sharply if overloaded or poorly balanced.

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