A trainer or sport model can be designed by the average modeler using some basic, established design parameters. With a basic knowledge of model structure and a simple guide, a modelers dream model can be a reality.

Many modelers trim a new model by adjusting the trim on the transmitter for straight and level flight then later readjust the linkages to compensate for these adjustments. The problems that continue to plague the model are thought to be inherent with the design simply because the modeler does not know the symptoms of improper set-up and trimming. This guide can help beginning and experienced modelers.

Breaking in an engine is the first step toward establishing the longevity of the engine. Most new engines are supplied with instructions which outline the procedure for breaking in the engine. In some cases, an engine may be bought without instructions from an individual or from mail order. Rather than searching for a set of instructions, this procedure, although excessive in some cases, will result in an engine that is properly broken in and ready for years of service.

Every modeler should have a basic understanding of the operation of the radio control system. Although a complete knowledge is not required by the average modeler, a little knowledge can go a long way in determining when the system needs service prior to using in a model.

Every modeler should have a basic understanding of the operation of the buddy box system. Understanding of the system can lead to understanding as to why certain systems cannot be connected and what can and cannot be done through the trainer port.

Plastic covering has been a boon to modeling. It has made it possible for virtually any modeler to cover a model to a high-gloss, attractive finish. Covering models in several colors has presented a whole new set of problems. These problems can also be virtually eliminated with the correct practices.

Even with the advent of the newer covering methods, some of the modeling communities have remained with the old standard covering methods. Although the older methods are more time consuming, the results cannot be matched with plastic covering.

Setting the idle of some engines can be tedious and frustrating especially when there are no instructions for the engine being used. Some engines are factory adjusted and leave very little that the modeler can do while others offer quite a bit of latitude in adjustment if the procedure is known.

Mechanical soldering is becoming a lost art. It is skill that can be a real benefit to modelers. Like any other skill, it takes time to learn and develop but is well worth the effort.

This propellor (prop) selection chart covers the most common 2 - cycle and 4 - cycle engines in use today. There is no perfect match for prop and engine so the chart lists the preferred size prop and several alternate sizes.

This radio frequency chart defines all of the legal frequencies for use with radio control models within the United States. Each frequency is cross referenced to the appropriate unique channel and/or color designator.

This servo chart lists physical and mechanical properties of all the servos available today.

Sometimes the weight of a covering material is a prime consideration in selection. This chart lists many of the more common materials for comparison.

In most cases, calculating wing area is a simple matter of using basic formulas of geometry regardless of the shape of the wing. Understanding how to visualize the geometric shapes and applying simple formulas makes it possible for anyone to calculate the area of almost any wing.

Many of the less expensive 4 - channel transmitters are equipped for seven (7) channels. The average modeler can add the components to convert a typical transmitter to five (5) to seven (7) channels with a minimum of effort and cost.