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WSP47 Police Motor Launch

WSP47 Police Motor Launch

129.95

Krick WSP47 Police Launch The WSP47 is a semi-scale replica of ...
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P260 Brass Bollard L11 x H3.5mm

P260 Brass Bollard L11 x H3.5mm

2.24

Brass Bollard 11x3.5mm
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C1 Propshaft Support for 6mm shafts

C1 Propshaft Support for 6mm shafts

2.60

Propshaft support bbracket 6mm shafts
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P019 Binnacle 33 x 10mm

P019 Binnacle 33 x 10mm

3.65

Brass Binnacle Height 33mm, diameter 10mm
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P009 Deck Crane 120 x 90mm

P009 Deck Crane 120 x 90mm

9.29

Deck Crane Length 120mm, height 90mm, base diameter 15mm Scale approx ...
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P333 Davit 90 x 70mm

P333 Davit 90 x 70mm

6.94

Davit for Akragas Width 90mm Height 70mm
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P011 RDF Loop 48x20mm

P011 RDF Loop 48x20mm

5.06

Radio loop - Single Metal 48x20mm
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P262 Brass Bollard L20 x H8mm

P262 Brass Bollard L20 x H8mm

2.76

Brass Bollard 20x8x5mm
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Best Sellers

Universal Joint

Universal Joint

2.20

Modular type universal joint, requires inserts to complete.
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Mtroniks Viper Marine 20 Electronic Speed Controller

Mtroniks Viper Marine 20 Electronic Speed Controller

26.99

The Viper Marine20 is a Brushed Speed Control designed specifically for ...
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Hose Connection Fitting Y-Piece (2)

Hose Connection Fitting Y-Piece (2)

3.08

High-grade plastic. 4mm O/D 28x24mm
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Stars & Stripes 50 Stars Present Day 10mm

Stars & Stripes 50 Stars Present Day 10mm

2.99

Length 10mm. Pack of 2
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5621/05 Anchor Hall Type Brass effect 60mm

5621/05 Anchor Hall Type Brass effect  60mm

6.62

Anchor - Hall type -Brass effect - Working - Height 60mm, ...
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Water Outlet

Water Outlet

1.20

Smart black lightweight scoop and outlet with brass nuts.
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5793/13 Hawser outlet - Nickel plated - Size 13x9x6mm

5793/13 Hawser outlet - Nickel plated - Size 13x9x6mm

0.49

Hawser outlet - Nickel plated - Size 13x9x6mm
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Robbe Watercooling Coil 500/600 Motors

Robbe Watercooling Coil 500/600 Motors

4.25

Robbe Cooling Coil. Pre-bent thin-walled aluminium tube. Ideal for water cooling ...
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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 Reversing Mechanism for Jet Propulsion Unit (2340.1)

Graupner Reversing Mechanism for Jet Propulsion Unit (2340.1)

The set contains: flap, control yoke and mounting lugs (all parts injection-moulded plastic).
Part No: G2340.1
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Price: 16.84 (Including VAT at 20%)
Euros: 20.88 (Inc VAT) / US Dollars: US$22.87 (Tax Free)


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This item is temporarily unavailable. Please Click here for an expected delivery date.

Customers who bought this item also bought:
1. Tim 1:20 Scale Figure 80mm (Ref: R1606)
2. Anne 1:20 Scale Figure 80mm (Ref: R1601)
3. Jane 1:20 Scale Figure 80mm (Ref: R1600)
4. Plain Coupling Insert 5mm (Ref: C8008)
Graupner Reversing Mechanism for Jet Propulsion Unit 2 (2344.1)

Graupner Reversing Mechanism for Jet Propulsion Unit 2 (2344.1)

Reversing mechanism for JET Propulsion Unit 2 2344.1
The set contains: flange (injection-moulded plastic) and reversing flap (2-part, vacuum-moulded ABS, CNC-machined).
Part No: G2344.1
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Price: 17.89 (Including VAT at 20%)
Euros: 22.19 (Inc VAT) / US Dollars: US$24.30 (Tax Free)


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Customers who bought this item also bought:
1. Mtroniks Micro Switcher (Ref: MICROSWITCHER)
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: 166.99 (Including VAT at 20%)
Euros: 207.07 (Inc VAT) / US Dollars: US$226.83 (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. Hitec HS5485MG Digital Servo (Ref: P2217580)

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
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Price: 32.50 (Including VAT at 20%)
Euros: 40.30 (Inc VAT) / US Dollars: US$44.14 (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
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Price: 22.79 (Including VAT at 20%)
Euros: 28.26 (Inc VAT) / US Dollars: US$30.95 (Tax Free)


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Replacement Impellers

Replacement impellers for the Graupner Jet Drive Units

19mm Impeller for Graupner Jet Drive

19mm Impeller for Graupner Jet Drive

19mm Impeller & Shaft for the following Jet drive unit: 2349
Part No: G2349.2

Price: 3.88 (Including VAT at 20%)
Euros: 4.81 (Inc VAT) / US Dollars: US$5.26 (Tax Free)


Quantity:  


This item is temporarily unavailable. Please Click here for an expected delivery date.

Customers who bought this item also bought:
1. GraupnerSilicone Tubing 4mm ID 1 Metre (Ref: G1668.4)
2. Admiralty Glues Thick Superglue 20g Standard (Ref: AG9103)
3. 12mm Blue Letters & Numbers (Ref: B-12ABL)
4. Vehicle Safety Cheque 1:12 Scale (Ref: B-BATTENBURG1.12)
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: 10.66 (Including VAT at 20%)
Euros: 13.21 (Inc VAT) / US Dollars: US$14.47 (Tax Free)


Quantity:  


Customers who bought this item also bought:
1. Graupner Jet Propulsion Unit 5 (2347) (Ref: G2347)
2. 3373 Graupner Coupling Sleeve 5mm (Ref: G3373)
3. 2221.1 Graupner Flexible 3 Pin Coupling Single 5-7mm (Ref: G2221.1)
4. 2221 Graupner Flexible 3 Pin Coupling Double M6-7mm (Ref: G2221)

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: 9.70 (Including VAT at 20%)
Euros: 12.02 (Inc VAT) / US Dollars: US$13.17 (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: 16.98 (Including VAT at 20%)
Euros: 21.06 (Inc VAT) / US Dollars: US$23.06 (Tax Free)


Quantity:  


Customers who bought this item also bought:
1. 49mm Impeller for Graupner Jet Drive (Ref: G2347.1)

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