OTW Designs Radio Control Submarines

your primary source on the web for radio control model submarines and model submarine components.

Propellers and Propulsors

Hand built, one piece castings, supplied complete with prop shaft in stainless steel.

Pump Jet Propulsors for Vanguard and Trafalgar Models

This 5-bladed prop is true to scale for the Nacken model. It is about 4-1/2 in (115 mm) in diameter.

The scale prop for the Upholder features seven blades, like the real thing. These subs were rumored to be retrofitted with pump jets, but the status of this is uncertain since their acquisition by the Canadian Defence Forces. It is 3-3/4 in (95 mm) diameter.

Also candidates for pump jet retrofits, the original Trafalgar featured the carefully shaped 7 bladed prop shown here. It is true to scale with a diameter of about 3 in (76 mm).

This unusual 'petal' bladed prop was used on the Type 205. It measures some 2 in (51 mm) in diameter.

Used on the German Type 23 coastal sub, this conventional 3-bladed prop measures some 1-3/4 in (95 mm) in diameter.

Contra-rotating prop pair for 1/9 scale torpedoes. Note that there are two props, each with two blades; one is 'left handed' and the other 'right handed.' They are about 1-1/2 in (38 mm) diameter.

This is the prop used on the Molch and Seehund torpedoes.

We also supply a selection of propellers and pump jet castings which are available for our entire range of submarine models

Control Systems

Dimensions (mm): L 35.0 x W 34.0 x H 15.0

High frequency digital one touch electronic speed controller

1. High frequency forward, instant reverse
 2. Fully proportional forward, instant reverse
3. Over temperature shut down
4. Protected one amp (BEC)
5. Motor short circuit protection
6. Twelve gage power wire
7. Two set up LEDs
8. Waterproof casing
9. State of the art FETs
10. Digital one-touch setup
11. Voltage range: 6-12 volts B.E.C.

Output 5V/1.5 A max.

Price: £45 inc. p&p

Auto-Leveller (Salcon)

Size: 36 x 20 x 8mm
Weight: 4 grams
Consumption: 1 mA @ 4.8V
Safe operating voltage: 4.0 - 6.0 V
This device is a must for controlled submerged running. Automatically operates the dive planes to keep your sub running level. Of course, your control signals over-ride this when you wish to surface or to dive.

Price: £60 inc. p&p

Gearbox

£30 inc. p&p