eCCPM or mCCPM?

I am having a very hard time between deciding which CCPM version (e or m) is right for me. I have heard that eCCPM puts a lot of stress on the servo's, so you need fairly good ones, and that eCCPm does not add much to the flying ability. Is this true? Which form is better?

[rotorz]

Hi Jeffman
what does e or m ccpm do
please forgive my ignorance

I am a n00b, but eCCPM is where the swash plate only has three servo's connected to it. You need a radio that can do eCCPM mixing because alieron's and elevator are done by all three servos. mCCPM is just a normal setup. I am still trying to decided which is more commonly used and why.

[rotorz]

Hi Jeffman
I had an idea this was your meaning but did not want to jump the gun.
The first decision is can your tranny do the required ccpm mix.
Second is your heli desinged to be fitted with direct drive to the swashplate and if not do you feel compitent to modify it.

I use both types depending on type of heli and what I need to achieve. CCPM gives a slight advantage of less complex mechanics, a little less weight, and in a lot of cases greatly reduced backlash.

If you take for example the Sceadu 50 the plans advise strongly that the pitch servo should pull at least 6 Kilo on the mechanical mix system because it works on its own.

With CCPM all three servo work the pitch so a standard servo can be used as all three servo drive the pitch.

I have not converted it to ccpm yet because I wanted to get out and fly but it will no doubt get done soon because I want to use it for very aggressive aerobatics.

Happy Landings

Pick the one that is the least expensive for you to use. I would have preferred mechanical- but my Vario setup needed the radio to do the work. Cost me an extra $500 for a new radio that could do the mixing.

The result is the same either way.

I 'm looking at getting one of the Centiry Ravens (30 or 50) and was wondering if that would be a good choice for my first heli.

[rotorz]

For once I can't agree with JHP, I would not advise the cheapest because you usually get what you pay for, like cars, but certainly your own budget will eliminate some of your choices.

30 or 50 size, again budget counts but there is a definate advantage to the stability added by the bigger rotor of a 50.

Fuel consumption also but it not a huge difference. Some people try to put off the larger heli because of the inherent dangers of learning and a bump could get costly.

This is not an assumption that you will crash your heli, get good help and if you can plenty of sim time it will give you good stick sense. A training pilot at our local field hovered first time up becuase of his sim time and on second flight into forward flight even though he was on a buddy lead just in case.

As for the Century I have flown the 50 size and it flies ok and will do more than you are likely to for some time yet, I can only assume that the 30 is like.

Happy Landings

Just to clarify- if you don't need e-ccpm, and it costs extra on the radio you may want to wait....

Certainly don't by the cheapest....Rotorz is 100% right, you get exactly what you pay for. If you go with Futaba or JR on the radio side you should be just fine.