2021 Custom 21'

6.40 m
$ 69,495 USD
240-A Madonna Blvd, , 33715Tierra Verde Fl 33715

2021 Custom Flats Cat 21 FC

21' (6.40 m)

When you need more space, more power, and more storage options, the 21 Flats Cat is for you. The 21 will handle big choppy water better with a smoother ride. From super shallow to choppy bays and rough waters, the 21-foot Flats Cat can handle it all.

Tampa, Florida, United States
   Vessel ID: 2830405
FEATURES:
   Spot Lock Trolling Motor with Lithium Battaery
   Minn Kota Raptor
   Can run in 3 inches of water
Notable Upgrades: Only flats boat I have ever seen with Autopilot!

$ 69,495 USD

$ 99,999 CAD*
63,660 Euros*
£ 53,695 GBP*
*estimated foreign exchange

Description

Bill Allison Created and founded Flats Cat Boats out of necessity. Bill was a college football player and after a serious back injury in college he had to create a boat that was comfortable to ride in after his injury. Traditional boats were to hard on his back.


Bill spent years drawing up and researching options for his catamaran design. The goal was to create a boat that ran smooth, dry and shallow. That is why he created and designed the first catamaran hull. The first Flats Cat hulls were made with aluminum, but he soon realized that the aluminum was too noisy and spooked fish and fiberglass was the answer. He eventually patented the first Cat Hull for the Flats Cat on October 3, 1989.



The catamaran twin hull design of the Flats Cat is revolutionary because of the reverse engineering that creates water flow and lift like no other boat on the market. This design is why Bill Allison and Flats Cat earned the first patent.

The design was created in conjunction with the help of much research, including help from Texas A&M and the tenacity of founder Bill Allison through years of hard work and innovation.


The first Flats Cat created was the 21′ Flats Cat in 1991. Shortly after the 18.6 was created in 1995. The original Flats Cat boats were constructed in aluminum and later were built in all fiberglass. the 17′ Flats Cat was then added in 2001 and a year later was the birth of the 19′ Flats Cat.

Today, three models are still being built in Fiberglass. The 17′, 19′ and the 21′ Flats Cat.


Bill Allison passed away in 2014 and Gina ran the company until Chris Mapp took over the company in 2020.

LOA21'

LOA6.40''

Beam7'

Beam Inch6''

Draft Max Inch6''

Draft Min Inch3''

Fuel Tank (Gallons)40

Fuel Tank (Liters)151.42

TypePower

ConditionUsed

Specifications

HIN/IMO

2021

Stock

Yes

Power-Used

Year

2021

7'6"

Fuel Type

Gas/Petrol

Hull Material

Fiberglass

40 Gallons (151.42 Liters)

Engines

Engine 1

  • Engine Make: Mercury
  • ModelEngine Model: 1152F131D 150LPXS
  • Engine TypeEngine Type: Outboard 4 Stroke
  • Power HPPower HP: 150.00
  • Power KWPower KW: 111.86
  • Feul TypeFeul Type: Gas/Petrol
  • HoursHours: 75.00
  • Hours DateHours Date: 03-14-2025
  • Serial NumberSerial Number: 3B147430
  • Engine Quantity1
  • Multimedia

    Full Details

    Specs

    Specs


    • Beam 7′ 6″
    • Bottom 7′
    • Weight 1650lbs
    • Take Off Depth6″
    • Minimum Running Depth 3-1/2″
    • Boat Draft at rest 4″
    • Transom Height 27″
    • Planing Distance 10′
    • Recommended HP 150hp
    • Fuel Capacity 40 gallons


    Features


    • Unsinkable design and Construction
    • All hand Laminated Fiberglass Hull
    • Patented Catamaran Design
    • Self Bailing
    • Large Front Casting Platform with 3 hatches
    • Water resistant Hatches with Trim Lok
    • Non Skid Gelcoat Deck
    • Dual Rear Platform with hatches
    • Polystyrene Foam Filled stringer system 
    • Wiring Conduit from console to bow
    • Insulated Live Well with pump and bubbler
    • One way drain scuppers
    • Custom leaning post with backrest and storage
    • Single Axle trailer with Tandem option
    • Pop up cleats
    • Fuel selector valve
    • Bob’s 6″ Action Jack Plate
    • Hydraulic Steering


    Console Features


    • Large console Fiberglassed to deck
    • Aluminum Welded Console Rail
    • Tinted Windscreen with Spoiler
    • Non-Skid Surface on top of Console
    • 6 switch panel
    • Perko Battery Switch
    • Custom upholstered cushions
    • Fuel Fill and Vent, Fuel selector
    • Custom Steering Wheel
    • Livewell seat and back rest cushion
    • Smoked windshield


    Included Optional Items


    • Livewell w/ fill, recirc and pro Air
    • Aluminum Riser
    • Wade Ladder with Handrail
    • Removable Sport Top and Burnbar
    • Trim Tabs
    • Light Bar
    • 8′ Raptor installed
    • Minn Kota Ipilot Package
    • Wet Sound- Sound Bar
    • Elevated Ice Chest
    • Anodized Rod holders
    • Burn Bar
    • Trolling Motor Mount



    Stability

    Catamaran Hull Boats have always been known to be very stable while sitting still or moving at speeds, simply because you have two hulls.


    With Cat Hulls, one hull enhances the other, meaning that one hull is raised or lowered due to water movement, the weight versus the floatation of either hull are trying to stabilize each other. 


    Cat hulls displace only about 1/3 of their weight which enables the boat to run across the top of the water, not through it.


    During extremely choppy conditions, the sharp corners of the Flats Cat act like the keel of a v-bottom hull to dissipate the energy of the waves for a smooth dry ride.

    Shallow Water Performance

    Want to get shallow? Flats Cat boats are the answer. Flats Cat boats are known for their extreme shallow capabilities far surpassing most shallow running boats on the market. With only drafting inches while running, resting or on plane, these boats are designed to get you in and out of the toughest, shallowest areas that other boats can’t get to.


    How do Flats Cats run so shallow?


    Flats Cat hulls are designed with performance in mind. The Patented reverse angle hull forces and traps water in the inside hull wall. When the water passes under the transom, a jet effect is formed compacting the water even more and aiding in forward motion and lift. As air passes under the bow and approaches the inside walls of the cat hulls, the water under the boat is compressed. At speeds exceeding 20mph, the flats cat has 1/2″ draft, meaning the boat runs on top of the water, not pushing through it. When a Flats Cat passes over the water, air is injected into the bow entrance, raising the boat up and allowing the boat to ride on top of the water.


    Smooth Dry Ride

    When a Flats Cat Passes over the water, air is injected or rammed into the large bow entrance raising the boat up out of the water allowing the boat to ride on top of the water and gently walk from side to side on the cat hulls, eliminating the pounding affect created by most Mono hulls. 


    The seemingly flat hulls push water straight out away from the boat, far enough that spray cannot be drafted up the almost vertical sides, and into the boat. Since natural waves are uneven and do not roll evenly like a wake from a boat, the cat hulls encounter waves at different intervals creating a side to side or walking motion.

    Disclaimer

    The company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change or withdrawal without notice.

    Contact

    For more information about this yacht, please contact Traver Smith We look forward to working with you!

    For more information about this yacht, please contact Traver Smith. We look forward to working with you!

    For more information about this yacht, please contact Traver Smith.

    21ft Custom Yacht For Sale
    Traver Smith
    Yacht and Ship Sales

    240-A Madonna Blvd

    Tierra Verde Fl 33715

    1-813-404-9867