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World Electronics 'Talisman' system

Written for 'RCMW'.

Basics first - Airborne section - No frills

It is an interesting fact that there used to be as many R/C equipment manufacturers in England as in the rest of the western world. A careful survey might reveal that this is still true, since there are still many manufacturers in this country who produce equipment on demand but don't bother - or can't afford - to advertise the fact.

Many well-known names have gone on to other things, or simply disappeared, while smaller companies have grown bigger. Through all this, Mick Wilshere, of World Electronics, has soldiered steadily on.

Mick started with a part-time business forming the British off-shoot of the American World Engines company and imported their kits for equipment such as the 'Digitrio' and 'MAN-2-3-4' (which became the 'RCM&E Digital'). Increasing business saw a change to full-time status with the production of finished 'Blue Max' outfits.

It soon became obvious that it was uneconomical to import everything from the States and increasing use was made of British components, together with the adaptation of sets to suit the UK market. A point was eventually reached where the majority of sets were of British design and origin, which did not go too well with the parent company.

This eventually led to the formation of the World Electronics company and it's associate Tigre Engines. This coincided with the US World Engines changing hands, although it has since passed back into the possession of its founder, John Maloney.

Basics first

One is immediately struck by the small size of the transmitter, which is very comfortable to hold and specially suited to those with small hands. Despite this, power is provided by a 12 volt 600 mAH button cell ni-cad made by Varta under the original DEAC name. The use of a 12 volt supply gives high power with low current consumption and the transmitter has a claimed operating time of 5 hours.

The sticks are the very compact and neat Dunham units which are well proven and utilise 'cermet' type potentiometers of the type usually found in servo's. All the stick and auxiliary inputs plug into a very small circuit board via three pin plugs which can be reversed to give servo reversing. This also has the secondary advantage that it is possible to change the channel sequence (or firing order) if you should require.

One of the beauties of this whole arrangement is that it allows considerable versatility. The same basic set-up can be used for anything from two (or even one if required) to seven channels. As all the metalwork is made 'in house', you can have any known, or unknown, stick or control layout you may wish. World Electronics are, in fact, one of the very few manufacturers who are able to offer a transmitter with a three-axis stick - sometimes known as 'mode 3'. The review sample was supplied as a six channel outfit with one switched and one proportional auxiliary channel. Both mode 1 and mode 2 types are available but, if you don't specify, mode 2 will be supplied as standard.

Channel changing is accomplished by means of plug-in crystals; the transmitter crystal being accessible by removing the rear cover, which is a push fit.

Airborne section

Several types of receiver are available, including a micro type for lightweight models. The standard receiver is a double deck type with separate sockets for the servo's, although this shortly to be replaced by a single deck receiver. Despite the current trend to incorporate the servo sockets into the receiver in the form of a 'block connector', there is still a lot to be said for separate connectors and some people still prefer them.

A vast range of servos is available ranging from high power and retract types right down to the Cannon servo which is currently the smallest available anywhere. In fact, you can have any type of servo mechanics you wish - but do remember that the impossible takes a little longer! The review set was supplied with what appeared to be ready made servo's of Far Eastern origin. These are ball-bearing types with a claimed transit time of 0.4 sec.

Receiver battery is a 4.8 volt 500 mAH type using four Saft pencell type cells. These are arranged in a 2x2 formation which produces a compact arrangement. Also available is a 600 mAH button cell type which is very suitable for the nose of gliders, etc. Switch is the well established and very reliable Noble type which seems to have been forgotten by most other makers in the search for smallness and lightness.

Charging is accomplished by means of a dual charger with outlets which can be used separately or simultaneously. A red LED indicates that the appropriate output is, in fact, charging.

No frills

If you are looking for an R/C outfit which has all the 'whistles and bells', comes in a beautifully moulded display case and has a comprehensive set of glossy instructions with numerous diagrams and photo's - with a price to match - then this equipment is probably not for you!

On the other hand, if you want a good reliable outfit with virtually instantaneous service or if you need some special control layout or special servo's, then it may be well worth getting in touch with World Electronics.

Finally, we have been using one of these outfits for the last four years or so, mainly in FAI pylon racers and it has given exemplary service (clutches large piece of wood and exits left).

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