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HelicopterBeginners Corner › Update + some tail boom questions
05-31-2013 05:46 PM  4 years agoPost 21
DougPenhall

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San Jose, CA - USA

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NightF0x, I just bought a an mCPX BL and while setting up my controller I remembered several things that I think are important for beginners. Make sure that you set up your helis to not have any negative pitch when the throttle is off. When we lose control and are about to crash we have a tendency to pull the throttle stick back. The throttle will shut off, but the rotor will still be spinning quite fast. Full negative pitch at this time will make the crash worse, so 0 pitch is better. Also, make sure you throttle hold pitch curve matches your other pitch curve so you don't want to cause full negative pitch by enabling throttle hold either. It might be a good idea to have the entire throttle hold pitch curve at 0. Also, I programmed all the dual rate values to be the same so I don't have to worry about the state of any of he switches.

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06-01-2013 01:57 AM  4 years agoPost 22
NightF0x

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Toronto, Canada

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Hey Doug,

I used a video tutorial to setup my blades to be fairly leveld at 50% throttle ... Also I have used a regular settings for my throttle curve and pitch curve so I am not sure if they allow negative pitch in anyway therefore, I would be greatful if you could share your settings for the Mcpx so I could avoid getting into negative pitch

Thanks for the tips here !!!

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06-01-2013 05:29 AM  4 years agoPost 23
DougPenhall

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San Jose, CA - USA

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On your pitch curve 50% is 0 pitch, 0% is full negative pitch, and 100% is full positive pitch. I have a DX7, and believe you have a DX7s or DX7se. Any way if you set Point-L to 50% you'll have 0 pitch when you shut off the throttle. You can set the curve to a straight line to 100% at Point-H. Point 1, 2, and 3 can be set to 62, 75, and 87 to get it almost straight. If you can inhibit 1 and 3 (I can on my DX7) the just set Point-2 to 75% and it will be a perfectly straight line. You can program the same curve for NORM, ST-1, ST-2, and HOLD. Or you can program HOLD to be 50% all the way across for throttle hold and program the others as I just described. You controller might be a little different, but it should be very similar.

Today I was flying my BL and when I crashed, one of the connectors from the swash to the blade grips fell off and got lost. Your V2 has the same problem. They always seem to fall off when you crash. That's why it comes with a bunch of spares. But, rather than using up all my spares (I don't know what they're called) I glued a piece of thread across the two prongs on the rotor head that keep the rotors lined up with the swash. That way if the snap off the balls again they'll stay with the heli and I can just snap them back on. Be careful if you decide to glue a string on yours too because it's very easy to use too much glue and get it all over where you don't want it. I put a drop of glue on a wire, then tranfer it from the wire to where I want it, but sometimes even a drop is too much. I've found that some tissue is really good at sucking up extra glue if you put too much or get it where you don't want it to go.

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06-01-2013 03:15 PM  4 years agoPost 24
NightF0x

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Toronto, Canada

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I have a Dx7s therefore I do not have any inhib options and this also confused me when I used some tutorials that were saying inhib ...
I need to find a tutorial specificly for DX7s cause I also dont have that ST 1 or ST 2...
Also I got a quick question about that L point, what switch will turn on the L point? is it the Flight mode switch?

Thanks

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06-01-2013 03:47 PM  4 years agoPost 25
DougPenhall

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San Jose, CA - USA

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I don't know anything about the 7s except that in the, "Programming Your Transmitter" section the DX7 and DX7se are the same table while the DX7s is a separate table. It looks like your 7s has NORM, STUNT, and HOLD. I gues that just means that I have two stunt modes to play with. My stunt mode switch has 3 positions and yours has only 2. So, program your throttle curves for NORM and STUNT the same, "0%, 40%, 60%, 80%, and 100%" the first number is called Point-L, and the second one Point-1 and so on on my DX7. I don't know what the call it on yours. The first number is just the throttle setting when you have the throttle stick pulled back (toward you) and the last one is the throttle setting when the throttle stick is pushed forward (away fom you). Same with the pitch curve. With throttle 0% is off while with pitch 0% is full negative pitch. So in your pitch curve you want the first point to be 60%, then you want the values to increase until they reach 100% on the last point. The "inh" value on my DX7's Point-1 and Point-3 is just so I can be lazy and not figure out the value half way between 50% and 75%. Since you don't have the "inh" value, you'll have to program the values for your Point-1 and Point-3. The should be 62.5% and 87.5% to make the line perfectly straight. Your pitch curve for HOLD should either be the same as NORM and STUNT, or 50% all the way across. 50% all the way across will cause 0 pitch no matter where the throttle stick is whenever the throttle hold is on.

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HelicopterBeginners Corner › Update + some tail boom questions
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