Chuckie
Key Veteran
Location: Crofton Maryland, MHA member
| I wrote this for a friend of mine but wanted to share with the other RR crew.
You really need to fly the 14MZ to feel the big difference it has over the 9Z. It’s more than the 2048 resolution but also the 40 percent increase in response that makes it a better radio. The speed of the digital servos is now being utilized by the 14mz. Here are some first flight observations from my trip to Birmingham, Alabama, this past weekend.
Control inputs are faster and more precise, resulting in the pilot not having to move the sticks as much. As I fly smooth and precise the amount of time I spend thinking of making corrections is far less than before. Now when I do make a correction I don't need to move the stick as much as the model is commanded sooner and faster. Again, less stick corrections as the faster datalink and servo speed keep up with the slightest corrections. I'm now just putting in very little inputs to keep the model were I want and spending more time thinking about where I want to go and what's next. I'm also flying more comfortable down low as the speed of my commands and corrections by the model are so fast that I know I can get out of trouble quicker.
With the 9z the model would move out of position even if I gave some small correction. In the pitch and throttle (especially while hovering) it was like my corrections were two steps behind. That’s gone with the 14mz. Also, I used a lot of - expo as the fast digital servos we really not helping my flying and I had to reduce their affect to help with my control timing, especially during hovering. My commands would be behind what was needed and I would get in situations where I needed to wait to see if my inputs would take affect. This mental delay resulted in slower flying /corrections on my part.
On my first flight on the second day of using the 14mz at B-ham I placed the model starting position to hover sideways right in front of me. As I lifted the model to have the landing gear eye level I locked the model into a hover and tired to maintain position. I don't remember holding a model so still before and or actually giving any inputs. I just would see the model about to move and then it didn't. As the model was out of trim, wanting to fly forward, I held back elevator all the time. But once I found the stick position to hold the model I didn't think I moved the stick very much at all. I don't remember ever holding the model so stationary than with the new 14mz.
Just like the GY601 is using a high data rate from the gyro to the servo, the 9251 data speed is like 270hz, all the other flying channels (throttle, pitch, elevator, and aileron) are now keeping up with the speed of the tail servo. The 14mz is using the speed in the 9252 servos to keep the commands to a minimum and more precise. With the 14mz I had to delay my inputs while flying as they are taking affect too soon compared to the 9z. On the first day of using the 14mz, when doing pirouetting flips, I was out of sync with the model and could not maintain the maneuver. During the entire first day my flying tempo was slow and some of that was due to the long drive to B-Ham and not getting much sheep the 12 hours before. By the next day, Saturday, I was doing medium speed pirouetting flips at eye level and while the heli was pirouetting I was making slight corrections to cyclic more than I could before. I was mentally and physically correcting the position of the model much faster than I could with the 9z.
Chuckie |
Enjoy your new radio.
