RC Helicopters

r/c helicopterWelcome to the In Miniature rc helicopters page. Learning to fly rc helicopters is arguably the most challenging aspect of model flying. There are many different types of model helicopters available now including micro/mini electric models up to large internal combustion powered models.

Coaxial Model Helicopters are an ideal introduction to rc helicopter flying gue to their stability and slow responsiveness. This makes them far easier to master than the traditional single rotor / tail rotor counterparts. With a bit of practice they are stable enough to be flow indoors in a confined space so your can practice anywhere.

A conventional rc helicopter has a single rotor and a tail rotor to control yaw ie the direction in which the helicopter is pointing. A
coaxial helicopter however has two rotors on top of the helicopter and no tail rotor. These rotor rotate in opposite directions and the torgue generated by each rotor cancels the other one. This results in extremely stable hovering. Yaw is controlled by adjusting the speed of one of the two rotors.

Coaxial helicopters have a number of advantges and disadvantages.

Advantages include

– easier setup due to them requiring no gyro.

– cheaper since less electronics are required.

– very stable in the hover making them ideal for orientation practice.

– most are available ready to fly requiring no building or setup.

Disadvantages

– the motors need to be evenly matched so the torque generated by each rotor is similar.

– very slow and unresponsive. Getting them to move from the hover can require quite violent stick movements !

– at extreme cyclic throws the rotor blades can clash.

Conventional Electric RC Helicopters – electric rc helicopters, both micro and mini are a relatively recent development made possible by the advances in radio control unit miniaturisation and improvements in electric motors and rechargable batteries. Many different models are now available both in kit form and as ready-to-fly kits.

The smaller, electric powered helicopters are generally more difficult to control than their IC powered counterparts due to their size but can be used indoors as well as outdoors. They also cost less to repair, an important consideration when learning to fly !

IC Helicopters – Internal combustion or gas powered helicopters are easier for a beginner to control but generally they can’t be used indoors due to the fumes and the large space required. They are also more expensive to repair.

RC Helicopter Terminology

Helicopter Simulators

Trex 450 with Scale Body – Align Trex 450 with HeliArtist 450 BO105 Fiber Glass
Fuselage. Test flying indoors


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