Model Jet Airplanes

The way a RC model jet engine (turbine) works.

An authentic model turbo-CC jet gives a radio-controlled jet the final hint of reality, and commercial engines for the use in R/C are now widespread and increasingly common. Turbo jet R/C jet aviation has become a big thing in recent years and there are some amazing all around jet aircraft, big and small, but this part of the sport is not for the beginner!

Infinite flight experiences and an impressing budgets are necessary to take an active part in the flight of suitable remote nozzles with genuine gasturbines. The smaller model jet thrusters are not inexpensive either - and that in addition to the costs for the jet itself, the wireless equipment and the necessary equipment.

It is indeed serious real money, but it must be one of the most worthwhile ways to enjoy your R/C flight... if you can buy it! By the way, model R/C throttle turbo thrusters are also used in other R/C airplanes such as turbo props and choppers, but from a technical point of vie, I don't find true-to-scale, turbine-powered heli too real because of the noise - R/C choppers that run on a jet are more like a jet than a helicopter (again, just a person point of view!).

On the right you can see a JetCat model jet power plant, one of the first and most widely used commercial model aircraft power plants. Wren, from Great Britain, is another beloved model jet power plant producer with an outstanding name. Prior to the appearance of model aircraft thrusters in the aviation world, R/C aircraft always missed the genuine feel of a genuine guest turbo.

Until now, wireless thrusters had to be driven either by an aeroplane propulsion system with a prop (which affects the appearance of the aircraft) or by duct ventilation systems. At least this means that there is no prop that will spoil the look of the jet, but until electrically conductive blowers (EDFs) became generally available, the only option was an I. C. (Internal Combustion) driven by a spark plugs motor.

This is a very loud IC-guided blower assembly and this unbelievable audio, like the existence of a prop, really destroys the reality of a model jet. Recently, electrically driven blower blocks (EP) have become an everyday feature, and although the noises are not particularly real, it is better than an integrated circuit blower.

However, it' s not that easy to fly an RC jet within your hobbies with the EDF. Pulsed nozzles were another optional extra, but they're more missile engines than anything. Fortunately, thanks to JetCat, model aircraft can now be driven by a fully functioning and lifelike looking and ringing jetliner.

A model jet plane. How it works. Model jet designs can slightly differ from maker to maker, but all work on the same fundamental principles. Today, the most commonly used model is the concentrifugal mass transfer model in contrast to the longer thrust mass transfer model. There is a big distinction between spin and thrust impellers in the level of compressed atmosphere.

Inside a circulating pump system, the inlet steam to the turbines is centrifuged to the outside as it flows through the rotating rotor or compactor. A small heater plugs then detonates this fuel-air mix, similar to a 2 or 4-stroke model aircraft motor. Whilst the fuel-air mix inside the combustion chambers inflames and detonates, the conical form of the chambers and the inflowing new stream of fresh compressed gas force the mix back to the turbines.

Fast outflow of the fuel-air mix rotates the turbo, which in turn rotates the supercharger at the front of the jet (turbine and supercharger are linked by a center shaft), thus replicating the cycling. Ultimately, the gas (exhaust) is forced through the constricting jet tube at the back of the jet and exits at high velocity and low compression, producing the high thrusts of the jet engines.

In the following sketch the fundamental principles of a model jet propulsion system are shown: The model jet thrusters must be launched with pressurized gas to supply the turbines with electricity. It is only when the supercharger has achieved the required speeds per min (rpm) that the petrol can be fed into the combustion chambers and the motor can work normally.

Underneath is another model aircraft motor movie in operation, this one in an excellent F-14 Tomcat: Pilot jet display. Obviously, the real technical details of model aircraft thrusters for remote controls are more complicated than this page outlined, but apart from the abundance of information available on the web, there are some good textbooks on the topic that are definitely Worth Considering:

Gasturbinenmotoren für Modellflugzeuge (right) by Kurt Schreckling and Keith Thomas. "Kurt Schreckling and Keith Thomas have done an outstanding piece of work to bring the complexity of the power plant to a standard that the ordinary human can grasp and from which he can learn...".

Models of aircraft engines (shown right) by Thomas Kamps and Keith Thomas. "By the time I saw this volume, I didn't believe that it would be possible for an enthusiast to make an aircraft that could run at 100,000 revolutions per minute... Kamp's Kamp's book vividly illustrates how a model technician with a well-equipped garage can construct an efficiently functioning engine...".

R/C nozzles. Modell aircraft motors.