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Mahogany Strip 3x8mm

Mahogany Strip 3x8mm

1.27

Mahogany Strip 3 x 8mm x approx 1000mm
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Maple Sheet 0.5mm

Maple Sheet 0.5mm

3.85

0.5mm Maple Sheet x 100mm x 1000mm
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Flag "DGzR" Length 34mm & 2 Logos Diameter 19mm

Flag

2.15

CAP Maquettes Flag "DGzR" Length 34mm Height 21mm Logos "DGzR" ...
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Flag "DGzR" Length 45mm & 2 Logos Diameter 25mm

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2.50

CAP Maquettes Flag "DGzR" Length 45mm Height 29mm Logos "DGzR" ...
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Flag "DGzR" Length 67.5mm & 2 Logos Diameter 37.5mm

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3.44

CAP Maquettes Flag "DGzR" Length 67.5mm Height 43mm Logos "DGzR" ...
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Flag "LES SAUVETEURS EN MER" Length 34mm & 2 Logos Diameter 19mm

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2.15

CAP Maquettes Flag "LES SAUVETEURS EN MER" Length 34mm Height ...
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Flag "LES SAUVETEURS EN MER" Length 45mm & 2 Logos Diameter 25mm

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2.50

CAP Maquettes Flag "LES SAUVETEURS EN MER" Length 45mm Height ...
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Flag "LES SAUVETEURS EN MER" Length 67.5mm & 2 Logos Diameter 37.5mm

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3.44

CAP Maquettes Flag "LES SAUVETEURS EN MER" Length 67.5mm Height ...
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Aliphatic Rapid Glue 145ml

Aliphatic Rapid Glue 145ml

3.50

Outperforms traditional white glues with it's super fast grab time and ...
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Universal Joint

Universal Joint

2.20

Modular type universal joint, requires inserts to complete.
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1022 White Wood Filler

1022 White Wood Filler

4.70

White wood filler, very light, quick drying and sands easily, specially ...
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Plain Coupling Insert 4mm

Plain Coupling Insert 4mm

2.00

4mm Plain Insert, Includes grub screw
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4124/01 Rigging Cord Natural Hemp 0.10mm x 20mtr

4124/01 Rigging Cord Natural Hemp 0.10mm x 20mtr

1.44

Hemp. Diameter. 0.1mm x 20 metre reel.
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Admiralty Glues Thick Superglue 20g Professional

Admiralty Glues Thick Superglue 20g Professional

4.60

Caldercraft Admiralty Glues Professional Cyanoacrylate (superglue) is an industrial strength, industrial ...
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4134/10 Brass Pins 10mm (100)

4134/10 Brass Pins 10mm (100)

1.18

Brass, building pins, round head. Length 10mm, diameter 0.7mm.
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Threaded Coupling Insert M4

Threaded Coupling Insert M4

2.00

M4 Threaded Insert
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Jet Drives

Cornwall Model Boats | Hardware & Accessories | Drive Sets & Units |  Jet Drives

Water Jet Drives

The Jet propulsion unit, also known as a water-jet unit, is primarily fitted to exclusive high-speed motor yachts, ferries, racing boots and similar full-size vessels. In principle this power system consists of a pump which sucks in water though an opening in the bottom of the hull, accelerates it by means of an impeller, then forces it out again through an opening in the stern. Newton’s law of motion now applies: the jet of water expelled at the rear generates an equal and opposite reaction in the boat’s hull.

Boats with Jet propulsion units can operate in very shallow waters, as all the parts usually mounted below the hull, such as propeller, shaft, shaft bracket and rudder, are eliminated. Initial acceleration with a jet unit is very high, and this can be a distinct advantage in certain types of boat such as dragsters. The heeling moment produced by conventional boat propellers is completely absent. Since the water in a Jet propulsion system has to cover long distances in narrow ducts, there are inevitable friction losses which require rather more energy than for an orthodox power system.

Graupner Jet Propulsion Unit 5 (2347)

Graupner Jet Propulsion Unit 5 (2347)

The new JET propulsion unit is ideal for internal combustion engines, as thrust reversal is obtained by operating the reversing flap rather than by reversing the direction of rotation of the engine. The steering nozzle incorporates an integral cooling water nipple. Suitable power plants are internal combustion engines of 15 to 30 cc capacity, and electric motors rated at a minimum of 700 Watts output power.

Length approx. 285mm.Width approx. 78mm,
Height approx. 85mm, Impeller 49mm
Part No: G2347
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Price: 159.98 (Including VAT at 20%)
Euros: 212.78 (Inc VAT) / US Dollars: US$198.65 (Tax Free)


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Customers who bought this item also bought:
1. 49mm Impeller for Graupner Jet Drive (Ref: G2347.1)
2. 2221.1 Graupner Flexible 3 Pin Coupling Single 5-7mm (Ref: G2221.1)
3. Raboesch Bow Thruster 30/33mm x148mm (Ref: RAB108-30)
4. ENERG Pro Marine 90 SBEC ESC (90A)(w/cooled) (Ref: P4404984)

Related products:
1. 2221 Graupner Flexible 3 Pin Coupling Double M6-7mm (Ref: G2221)
2. 2221.1 Graupner Flexible 3 Pin Coupling Single 5-7mm (Ref: G2221.1)
Graupner Motor Mount for JET Propulsion Unit 6 Booster (2395.1)

Graupner Motor Mount for JET Propulsion Unit 6 Booster (2395.1)

Special motor mount for JET Propulsion Unit 6 Booster with connecting hole for Speed 700 series and Ultra 1300-9M motors.
Part No: G2395.1
More Information…

Price: 32.50 (Including VAT at 20%)
Euros: 43.22 (Inc VAT) / US Dollars: US$40.35 (Tax Free)


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Graupner Steering Nozzle With Reversing Bucket (2346.1)

Graupner Steering Nozzle With Reversing Bucket (2346.1)

The kit contains: steering nozzle, reversing flap and frame, mount, lugs and other parts (all parts injection-moulded plastic).
Part No: G2346.1
More Information...

Price: 28.49 (Including VAT at 20%)
Euros: 37.89 (Inc VAT) / US Dollars: US$35.37 (Tax Free)


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Replacement Impellers

Replacement impellers for the Graupner Jet Drive Units

49mm Impeller for Graupner Jet Drive

49mm Impeller for Graupner Jet Drive

49mm Impeller for the following Jet drive unit: 2347 & 2348
Part No: G2347.1

Price: 14.99 (Including VAT at 20%)
Euros: 19.93 (Inc VAT) / US Dollars: US$18.61 (Tax Free)


Quantity:  


Customers who bought this item also bought:
1. Graupner Jet Propulsion Unit 5 (2347) (Ref: G2347)
2. Raboesch Bow Thruster 30/33mm x148mm (Ref: RAB108-30)
3. 2221.1 Graupner Flexible 3 Pin Coupling Single 5-7mm (Ref: G2221.1)

Replacement Parts for Graupner Jet Drives

Replacement parts for the Graupner Jet Drive Units

2347.5 Sealing Ring for Jet Unit 5

2347.5 Sealing Ring for Jet Unit 5

Rubber shaft sealing ring for Jet Propulsion unit 5 (2347)
Part No: G2347.5

Price: 8.99 (Including VAT at 20%)
Euros: 11.95 (Inc VAT) / US Dollars: US$11.16 (Tax Free)


Quantity:  


Customers who bought this item also bought:
1. Vitalbond 30 Min Epoxy 240g (Ref: VB39)
2347.7 Nozzle Guide Vane for Jet Unit 5

2347.7 Nozzle Guide Vane for Jet Unit 5

Nozzle guide vane for Jet Propulsion unit 5 (2347)
Part No: G2347.7

Price: 15.95 (Including VAT at 20%)
Euros: 21.21 (Inc VAT) / US Dollars: US$19.80 (Tax Free)


Quantity:  

Cornwall Model Boats | Hardware & Accessories | Drive Sets & Units |  Jet Drives