FOR SALE:  Allison Gas Turbine Powered Berkeley Jet SK Boat

SEE CURRENT LISTING ON EBAY!

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(New aluminum trailer is included)

This is a RARE opportunity to join an exclusive group of gas turbine boat owners.  This custom-made SK boat is powered by an Allison gas turbine engine which drives a Berkeley-Jet waterjet unit.  It can run in less than 1 foot of water at speeds of 50 MPH+.  This is the original prototype of what was to be a production-type boat, but the financing for the plant and intital boats fell away.  This one-off boat has been run in fresh water a total of 4 times since built.  Engine kept well-within TOT limitations and basically "babied" since received.  Please see full specifications and explanations that follow:

LINK TO PHOTO PAGE

 

ENGINE:    Allison
Model T63-A-700(250-C18) Gas Turbine Engine


Model and type
T63-A-700. Turboshaft, 2-shaft, 6-'stage axial and 1-stage centrifugal compressor, 1 combustion chamber, 2-stage gas generator turbine, 2-stage free power turbine.

Intake
1-piece steel air intake casing. hot bleed air anti-icing.

Compressor
2-piece steel axial casing with 6 row of stator blades, bolted to magnesium alloy centrifugal diffuser. Pressure ratio 6.2:1. Air flow 3.0 Ib/sec/51,600 rpm.

Combustor
Reverse flow combustion chamber. 1 dual fuel nozzle.

Turbine
Steel casing with hollow nozzle vanes. 1st and 2nd-stage (gas generator) turbine wheels, Maximum inlet temperature 1,825 F (996C). 3rd and 4th-stage free turbine wheels integral shrouded blades, (power) attached to main gear train pinion and reduction gear

Exhaust
Fixed area dual ducts, with 40o upward exhaust. Power take-off
Offset-down reduction gearbox, ratio 0.171:1(5.83:1). Output shafts with Internal splines at front and rear, 6,000 rpm Control system Pneumatic-mechanical. Gas generator governor. Acceleration control. Power turbine governor. Torquemeter. Constant speed.  InfraRed suppression-type tailpipes.

Fuel system
1 pesco fuel pump 600psi, with integral filter. Bendix control

Ignition system
Bendix high-energy ignition. 1 igniter.

Lubrication
Return system, 120 psi.

Starter
Electric starter-generator.

Width and height
9.0 in and 22.5 in

Length and frontal area
40.8 in and 1.9 ft


Weight; power/weight
136 Ib; 2.33 shp/Ib

Fuel specification
JP-4 or JP-5/Kerosene

Fuel consumption
0.70lb/shp/hr

Oil spec; consumption
MIL-L-7808: 0.05 Ib/hr

Rating
317 shp at 35,000 power turbine rpm.

Monel water-jacketed turbine oil cooler.

ENGINE-TO-BERKLEYJET INTERFACE BY NYE THERMODYNAMICS, LLC

BOAT:

Custom-built 18' SK-type Fiberglass, hand-layup

WATER JET:

Berkeley Jet Drive Model 12JE

DESCRIPTION: The Model 12JE Jet-Drive is constructed of a super-tough, high-strength, aluminum alloy, castings the finest and most serviceable material available. Precision machined and hard-anodized, assembled with stainless steel fasteners, assures maximum performance with a minimum of maintenance. Dissimilar metals are protected from each other by inert insulators to retard corrosion. Using Berkeley's unique single stage, mixed flow, impeller, this unit gives maximum thrust per horsepower. Developed over a period of many years, and field tested, assures the user of the Model 12JE Jet-Drive many years of trouble-free boating. A popular unit with boat manufacturers because of its ease of installation in specially molded hulls.

PLACE DIVERTER CONTROL ON JET DRIVE

TRIM TABS:  BENNETT HYDRAULIC, TWIN CYLINDER

Sport Tabs
standard.jpg (11128 bytes)
Backed by nearly 40 years of trim tab
experience, Bennett Sport Tabs are
engineered for the demands of offshore
attitude correction. Performance boats that
are run at speeds of 60 mph require the
rugged construction and enjoy the
sophisticated black powder coated finish of
Sport Tabs. Manufactured with heavy gauge
reinforced stainless steel and powerful dual
hydraulic actuators, Sport Tabs combine
strength, durability, and good looks to achieve your boat's maximum potential. 

 

FUEL TANKS:

2 Russell 18gal stainless steel tanks  Racor fuel filter.

ELECTRICAL:

Twin 750AH 12V batteries in series for 24V aircraft-type system.  Separate 12V bus for accessories.

Rule bilge pump.  Marine electric fuel boost pump.

TRAILER:

NEW All-Aluminum Magic Trail by Magic Tilt, folding tongue that will fit in a typical garage.