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DETAILS:
| stock number: | 3ad867 |
| location: | Miami, FL |
| boat type: | powerboat |
| propulsion type: | power |
| condition: | excellent |
| engine hours (total): | 127 |
| length overall (LOA): | 27 |
| make / manufacturer: | Custom |
| year manufactured: | 2003 |
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DESCRIPTION:
In 1991 Yanmar wanted to test how fast a Yanmar diesel engine with a Mercruiser Bravo outdrive could propel a 27 foot boat with a 8.5" beam. They commissioned Denny Garrison of Aggressor Boats to design a boat that would accommodate such an I/O set-up with an accent on speed.
Garrison patterned his design after a Sea Craft hull, because he favored its strakes and unique transverse chimes. He believed these attributes would provide a significantly softened ride. He then added length, height and flare to the customized boat he designed for Yanmar.
Two hand-built, cored and bagged boats were constructed for Yanmar, but only one was used for the tests. It was rigorously tested in various sea conditions and proved very fast, stable, solid and dry. Yanmar engineers reported that the test boat achieved a top speed of 73 MPH. The location of that test boat is unknown.
The second customized hull sat at the Yanmar facility for years and attracted the attention of Mike Vernese, owner of Ugly Boats, Inc. of Ft. Pierce, Florida. Over the years he had asked Yanmar if they would sell the hull, but they always said no.
In 2002, however, Vernese got a call from a Yanmar representative asking if he was still interested. Yanmar was moving to a new location and decided they would sell the boat rather than move it. Mike jumped at the chance and acquired the hull, which had been sitting upside down in an indoor facility for 11 years.
He transported it to his facility in Ft. Pierce where it was noticed by its current owner who was in the market for a new boat. The current owner was impressed by the hull design, the family-owned nature of Vernese's company and the workmanship evident in the company products. He was also impressed by the desire of Mike and his sons Brandon and Damon to do something special with this unique running plug. The current owner contracted with Vernese to design and build his boat.
The current owner took delivery of that boat, which he named “Thunder”, in November 2003. It epitomizes what a custom boat is all about. It is Hull #1, a boat that has been faired by hand and lovingly constructed with a sense of pride. People are drawn to it like a magnet. They sense it is special!
Thunder is powered by a Volvo Penta 5.7GXI-EF paired with a DP-SM+ (1.95:1). It jumps quickly up on plane and tops out at about 45MPH. Its unique hull design allows it to cut smoothly through waves. Passengers have marveled at its comfortable ride.
The engine and outdrive on this seldom used boat only have 127 hours of use and have been maintained by authorized Volvo Penta servicers since new. The boat has always been on a lift.
This one-of-a-kind boat is located in Jupiter, Florida. Thunder is a true “Dock Queen” reluctantly being sold by its elderly, original owner.
Boat Specifications
Thunder
LOA 26.0 feet
Beam 8.5 feet
Displacement 4500 lbs.
Draft 21 inches
HIN # FYVCC2601K304
Engine Volvo I/O 5.7GXI EF 320 HP
Duoprop (F5)
Serial#
Propellor F5 Ratio 1.95
Cooling Fresh Water (thru Outdrive)
Bilge Pumps 2 Rule 2000GPH (1 is on auto)
Year 2004
Florida Title # FL4584RX
Fuel Type Gas
Fuel Capacity 140 gal.
Fuel Tanks 2 (70) aluminum gallon tanks
Propulsion I/O
Transom Shield # 415039028
Transom Angle 14 degrees
Jack Shaft Size 3.5"
Jack Shaft Length 70"
Batteries 2
Gas Consumption
MPH GPH
4.3 0.82
6.1 1.44
8.2 2.66
12.5 4.16
19.5 6.21
26.9 8.77
32.4 11.7
38 14.66
42 20.74
48.1 24.7
Other Boat Features
Live Baitwell, Bronze Thruhull
Lenco Lifts on CC for Easy Engine Access
Built-in cooler
Fish Box
T Top with 4 Rod Holders
Standard Horizon Eclipse VHF
Towing Eye
Salt Water Washdown
Fresh Water Flush Kit
5 Stainless Cleats Flush Mounted
Self Bailing Cockpit
Danforth Compass
Teleflex Hydraulic Steering
Faria Gauge Panel
2 Turbo 4000 Blowers 460CFM
Cushioned Console Seating Forward
International Lighting
Custom Leaning Post
Forward Anchor Stroage Locker
Horn
Engine Hour Meter
Cockpit Countesy Lights
Paint is Imron 4296X, Car Ford USA,
Code M, Color Beige, Year 1962
Garrison patterned his design after a Sea Craft hull, because he favored its strakes and unique transverse chimes. He believed these attributes would provide a significantly softened ride. He then added length, height and flare to the customized boat he designed for Yanmar.
Two hand-built, cored and bagged boats were constructed for Yanmar, but only one was used for the tests. It was rigorously tested in various sea conditions and proved very fast, stable, solid and dry. Yanmar engineers reported that the test boat achieved a top speed of 73 MPH. The location of that test boat is unknown.
The second customized hull sat at the Yanmar facility for years and attracted the attention of Mike Vernese, owner of Ugly Boats, Inc. of Ft. Pierce, Florida. Over the years he had asked Yanmar if they would sell the hull, but they always said no.
In 2002, however, Vernese got a call from a Yanmar representative asking if he was still interested. Yanmar was moving to a new location and decided they would sell the boat rather than move it. Mike jumped at the chance and acquired the hull, which had been sitting upside down in an indoor facility for 11 years.
He transported it to his facility in Ft. Pierce where it was noticed by its current owner who was in the market for a new boat. The current owner was impressed by the hull design, the family-owned nature of Vernese's company and the workmanship evident in the company products. He was also impressed by the desire of Mike and his sons Brandon and Damon to do something special with this unique running plug. The current owner contracted with Vernese to design and build his boat.
The current owner took delivery of that boat, which he named “Thunder”, in November 2003. It epitomizes what a custom boat is all about. It is Hull #1, a boat that has been faired by hand and lovingly constructed with a sense of pride. People are drawn to it like a magnet. They sense it is special!
Thunder is powered by a Volvo Penta 5.7GXI-EF paired with a DP-SM+ (1.95:1). It jumps quickly up on plane and tops out at about 45MPH. Its unique hull design allows it to cut smoothly through waves. Passengers have marveled at its comfortable ride.
The engine and outdrive on this seldom used boat only have 127 hours of use and have been maintained by authorized Volvo Penta servicers since new. The boat has always been on a lift.
This one-of-a-kind boat is located in Jupiter, Florida. Thunder is a true “Dock Queen” reluctantly being sold by its elderly, original owner.
Boat Specifications
Thunder
LOA 26.0 feet
Beam 8.5 feet
Displacement 4500 lbs.
Draft 21 inches
HIN # FYVCC2601K304
Engine Volvo I/O 5.7GXI EF 320 HP
Duoprop (F5)
Serial#
Propellor F5 Ratio 1.95
Cooling Fresh Water (thru Outdrive)
Bilge Pumps 2 Rule 2000GPH (1 is on auto)
Year 2004
Florida Title # FL4584RX
Fuel Type Gas
Fuel Capacity 140 gal.
Fuel Tanks 2 (70) aluminum gallon tanks
Propulsion I/O
Transom Shield # 415039028
Transom Angle 14 degrees
Jack Shaft Size 3.5"
Jack Shaft Length 70"
Batteries 2
Gas Consumption
MPH GPH
4.3 0.82
6.1 1.44
8.2 2.66
12.5 4.16
19.5 6.21
26.9 8.77
32.4 11.7
38 14.66
42 20.74
48.1 24.7
Other Boat Features
Live Baitwell, Bronze Thruhull
Lenco Lifts on CC for Easy Engine Access
Built-in cooler
Fish Box
T Top with 4 Rod Holders
Standard Horizon Eclipse VHF
Towing Eye
Salt Water Washdown
Fresh Water Flush Kit
5 Stainless Cleats Flush Mounted
Self Bailing Cockpit
Danforth Compass
Teleflex Hydraulic Steering
Faria Gauge Panel
2 Turbo 4000 Blowers 460CFM
Cushioned Console Seating Forward
International Lighting
Custom Leaning Post
Forward Anchor Stroage Locker
Horn
Engine Hour Meter
Cockpit Countesy Lights
Paint is Imron 4296X, Car Ford USA,
Code M, Color Beige, Year 1962
Posted: Apr 17, 2026