OK.. today I am on a mission to get the DX7se settings tweaked to fly the CPP2 the same as the factory HP6DSM. Right now I have pitch set up according to factory specs but ELE and AIL need to be set correctly. Once collective is set up correctly, I will work on EXPO to get the "feel" of the HP6DSM using the DX7se.

I have my trusty CPP2 that I have been flying for a couple months on the HP6DSM now bound and flying with my DX7se. I also have a brand spanking new in the box CPP2 RTF.



The first thing I did was set up the new CPP2 for flight. I do not like the rubber band method of holding the battery in place so I purchased a set of Velcro battery straps for a Blade 400 and use that instead. Simply remove the rubber bands and then loop the B400 straps around the battery tray and trim it to fit the battery.





I took the new CPP2 for a flight and it actually flies quite well straight out of the box. It needed two clicks back cyclic, two clicks left cyclic and two clicks right rudder and it would hover hands off for a couple seconds at a time. Rotor speed seems a little slow but this was also the case with my original CPP2 due to too much positive pitch. Rotor tracking is about 1/8" off.

Now that I have evaluated it in "out of the box" form, I need to set it up properly to be able to accurately measurements for the DX7se setup on the original heli. This will include setting pitch to ZERO at mid stick and equalizing pitch travel. According to factory specs, I should be have about 12° of pos and neg pitch in STUNT mode. There are no factory specs on cyclic pitch, so these are the ones I need to measure to accurately set up collective on the DX7se.

*UPDATE*

I was trying to figure out a way to determine 50% throttle on the HP6DSM. I decided to view the TX from the side and position the throttle so the stick was positioned identically to the cyclic stick.

In this position, factory pitch was spot on for 0° in STUNT mode. I got 11° of pos at 100% throttle and 11° neg pitch at 0% throttle. This is a bit short of the factory rating of 12° but I can see that there is more swash movement available which I will explore with the DX7se. I then measured cyclic pitch at 50% throttle. Forward, backward, left and right all measured at about 7°.

The odd thing is when I went to check pitch in NORM mode. At 50% throttle, I switched from F1 to F0 and pitch changed. I measured pitch and found that pitch was now 1° positive at 50%. I had to move throttle up to aprox 60% throttle to get pitch to stay the same in both NORM and STUNT. 0% throttle was 2° neg pitch and 100% throttle was 11° pos.

Based on the differences in pitch between F0 and F1, I would say that true center stick is off on this TX. Because collective is centered in F1, I am not going to adjust the head of this heli.

So the specs I am going to go with are: 11° of pos and neg pitch and 7° of pitch on cyclic.