HACKING A SERVO

Hacking Servo

This page is going to describe how to take a R/C servo and make it into an excellent gearhead motor. The changes are quite easy to do, once you have seen the insides. This modification is known to work quite well on Futaba S-148 servos, which are commonly available. But before beginning make sure that you know how servo motor works.

AERO-MODELLING SERVO

SERVO

A Servo is a small device that has an output shaft. This shaft can be positioned to specific angular positions by sending the servo a coded signal. As long as the coded signal exists on the input line, the servo will maintain the angular position of the shaft. As the coded signal changes, the angular position of the shaft changes. In practice, servos are used in radio controlled airplanes to position control surfaces like the elevators and rudders. They are also used in radio controlled cars, puppets, and of course, robots.

ENGINE BREAK-IN PROCEDURE

ENGINE BREAK IN PROCEDURE

CAUTION

The instructions that are supplied with a new engine should be read thoroughly and followed for breaking in and maintaining the engine. If the instructions are not available, these instructions can be used for standard 2 - cycle engines.

Propeller Selection Chart

Propellor Selection Chart

2-Stroke Engine

Covering the Aeromodel

Covering the Model

TWO COLOR COVERING

The introduction of heat-shrinkable plastic covering has saved a lot of labor and time for many modelers. Plastic coverings require far less effort and skill than the silk and dope or silkspan and dope coverings of the past. A tight, glossy, attractive covering job can be achieved by anyone with the right tools and a little patience.

DESIGNING RC MODEL

DESIGNING RC MODEL

R/C Model Design Aerodynamics, Flight mechanics and Structures are three important branches of Aerospace engineering which play a crucial role in designing a full scale aircraft. But in designing a model plane, first two branches play important role and the third one is not considered in detail.

TYPES OF AEROMODELS

Aeromodels can be basically classified into 2 types:

• Static and
• Flying

Static model aircrafts are not intended to fly. They are commonly built using plastic detail parts, photo etched brass, and wire, though other materials such as wood, metal, and paper are also often used. Some static models are scaled for use in wind tunnels, where the data acquired is used to aid the design of full scale aircraft.