Cheetah 30 Information, Review, Specs

Cheetah 30 Drawing
Make
Cheetah
Model
30
Builder
Cheetah International
Designer
Bob Ames
Number Built
7
Production Year(s)
1995 - 1996

The Cheetah 30 is an ultralight, high-performance sportboat designed by Bob Ames in the mid-1990s. Conceived during an era of rapid innovation in the "trailerable speed" niche, it was intended to serve as a competitive, affordable one-design racer that could be easily transported and launched. While only approximately 7 to 12 units were ever produced, the boat remains a notable example of early sportboat design, featuring aggressive chines and a carbon-cassette lifting keel that was years ahead of its time. The vessel was primarily built by Corsair Marine in Santa Ana, California—a builder famous for its high-speed trimarans—though a few early examples and prototypes were constructed by Portsmouth Boatworks in Rhode Island.

Sailing Performance & Handling

The Cheetah 30 is a dedicated planing hull designed to prioritize off-wind speed. With a displacement of just 2,300 pounds and a reported Sail Area/Displacement (SA/Disp) ratio exceeding 32, the boat enters a plane early and remains exceptionally responsive in light to moderate air. According to design notes from Bob Ames Naval Architecture, the inclusion of hull chines was a pioneering feature for a keelboat of this size in the 90s, intended to provide stability and tracking as the boat heals while maintaining a narrow waterline for low-drag light-air performance.

The handling characteristics are those of a "large dinghy" rather than a traditional keelboat. With nearly 45% of its weight concentrated in a 1,000-pound lead bulb at the end of a seven-foot lifting keel, the boat is surprisingly stiff once the bulb is fully deployed. However, owners and racers frequently note that the Cheetah 30’s upwind performance in heavy chop is its "Achilles' heel," as the ultralight hull can be easily slowed by waves. To sail to its PHRF rating upwind, a crew of 4 to 6 is typically required on the rail to provide the necessary righting moment. Conversely, in downwind conditions, the boat is described as "untouchable" by many in its class, frequently exceeding 15 knots under its massive asymmetric spinnaker.

Interior Comfort & Variations

The interior of the Cheetah 30 is Spartan, reflecting its primary mission as a race boat. While the standard model features a low-profile cabin house (often referred to as a "doghouse"), the space below is largely a fiberglass shell with minimal amenities. Headroom is restricted, and while there are flat surfaces for berths, the boat lacks the wood cabinetry, plumbing, or galleys found in contemporary cruiser-racers like the Beneteau First series.

There is significant variation among the few hulls produced. The most notable sibling is a variant often referred to as the "Unplugged" version, based on the original plug. This specific model lacks the cabin house entirely, featuring a completely open deck and a flush-deck cockpit layout. It was optimized as a pure daysailer and shorthanded racer, often fitted with a larger Mumm 30 (Farr 30) rig to further increase its power-to-weight ratio. Production models built by Corsair Marine utilized a single-piece structural interior liner to reduce weight and simplify assembly.

The Cheetah 30 maintains a small but dedicated following in the Pacific Northwest and Southern California racing circuits. It gained modern visibility through the "Sailing Tips" media channel, which documented an overnight race on the Cheetah 30 "Gladiator" through the Patos Island Race. The footage highlights the boat’s ability to plane in heavy conditions while demonstrating the "wet" nature of the ride, as the low freeboard and high speeds result in significant spray across the cockpit.

Known Issues & Buyer’s Checklist

Prospective owners should treat the Cheetah 30 as a high-performance machine requiring specialized maintenance.

  • Keel Security: The lifting keel is managed by a carbon cassette and winch system. Technical discussions among owners suggest that the keel should be through-bolted once in the "down" position for racing. There has been at least one reported instance of a keel failure during offshore conditions, likely due to the stresses of the high-aspect foil.
  • Hull-to-Deck Joint: Early production reports indicated that the hull-to-deck joint was intended to be fiberglass-taped for structural rigidity. Buyers should inspect the joint for any signs of separation or water ingress, particularly near the chainplates.
  • Rigging Loads: Because the boat lacks a permanent backstay (utilizing a high-roach main and swept-back spreaders), the mast and forestay tension are under immense load. Inspect the mast step and the surrounding deck area for stress cracks or compression.
  • Rudder Bearings: Later hulls were retrofitted with "second generation" high-aspect rudders to improve control while planing. Check for play in the rudder bearings, which can become worn due to the high speeds the vessel achieves.

The Verdict

The Cheetah 30 is a niche "rocket ship" for sailors who prioritize raw speed and the ability to trailer a 30-foot boat over cruising comforts.

Pros

  • Exceptional off-wind planing performance.
  • Easy trailering and shallow-water access via the 1-foot retracted draft.
  • Advanced Bob Ames design with innovative hull chines.

Cons

  • Minimalist interior unsuitable for cruising or overnighting.
  • Requires a large, active crew to perform well upwind.
  • Extremely limited production run makes finding parts and hull-specific knowledge difficult.

Similar Sailboats

Measurements

Construction & Hull

Construction Material
Fiberglass
Hull Type
Monohull Sailboat
Keel Type
Lifting
Rudder
1x —
Ballast
1000 lbs (Lead)
Displacement
2300 lbs
Water Capacity
-
Fuel Capacity
-

Dimensions

Length Overall (LOA)
30.25 ft
Waterline Length (LWL)
27 ft
Beam
8 ft
Draft
7 ft
Max Headroom
-
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Fractional Sloop
P (Main Luff)
34.58 ft
E (Main Foot)
12.25 ft
I (Foretriangle Height)
27.58 ft
J (Foretriangle Base)
10.1 ft
Forestay Length (est)
29.37 ft
Sail Area
351 sqft

Calculations

Sail Area / Displacement (SA/D) Ratio
32.23
Ballast / Displacement Ratio
43.48
Displacement / Length Ratio (D/L) Ratio
52.17
Comfort Ratio
7.96
Capsize Screening Formula
2.42
Hull Speed
6.96 kn