T14MZHP Set Up Instructions for Helicopters - Page Two
Cliff Hiatt and Wayne Mann

ATV’s
The ATV’s are in the Linkage Menu and any adjustments made to the ATV’s will affect all conditions. Typically we never used ATV’s much with the 9Z as they would effect program mixers if you made any changes to the ATV’s after the mixers are adjusted. So most of us won’t be using the ATV’s with this radio either. AFR’s are a much better choice if you need to adjust an endpoint.

Choosing Between the Many Curve Types for Pitch and Throttle
This radio is very flexible in that it has many different types of curves to choose from for both Pitch and Throttle. In the Model Menu click on Pitch Curve. At the top right corner of the graph you will see a box that has the word Linear in it. Clicking on this box will bring up a box with six different types of curves for you to choose from. Spline is the curve type that is most familiar to those of us coming from Futaba's 9Z transmitters. If you click on Spline it will bring up a curve with 9 points that can be adjusted. Any of these 9 points can also be removed to create your own type of curve. Simply click on Rate, use the double arrowed cursors at the bottom right hand side of the graph to move from one point to another. After highlighting the point to be removed click Delete. Use the double arrowed cursors once again to move to another point. This last step will delete the unwanted point. The single arrowed cursors are used to add more points to the curve. Example: If you wanted a point between the center point at half stick and the next point up simply highlight the center point with the double arrowed cursors, then use the single arrowed cursor to put a hollow, square green box anywhere between the two points. Then click on any of the data input cursors on the far right side of the screen and the point will be added.

Gyro
In the Model Menu click on Gyro. There are three rates that can be selected and activated by any switch. Also the gyro gains can be set to automatically change when switching from condition to condition. On the Rate 1 line and at the far right side of the page you will see the Gr. folder. Click on the folder changing it to Sngl and then click Yes. Do this for every condition. This will allow different gyro settings for each condition. Under ACT click on INH changing it to ON. In the next box under Type it should say GY if you are using one of Futaba's GY series of gyros. The next box should read AVCS if you want the gyro to be in heading hold mode and NOR for normal mode. The next box under Rate is where you will make changes to the gyro gain. This number will have to be set for each condition. The next box is for Switch selection if you want to be able to switch from Rate 1 to Rate 2. If you are wanting to use a second rate for Normal Mode or a lower rate on heading hold mode make sure that you use the same switch for both rates and that you have the switch turning off rate 1 when it activates rate 2. Change all of the Gr. folders to Sngl for the second rate as well.

To the right of Switch you will see Fine Tuning. Under CTRL you can assign any dial or slider to control the gyro gain. The Rate value will allow you to determine how effective the trimmer is. Refer to the GY owners manual for instructions on adjusting and setting up the amplifier for Futaba's GY series of gyros.

Governor
Begin by connecting the GV-1 amplifier to the RX as shown in the instructions, where the rpm lead is in channel 7 and the on/off lead is in channel 8. Next select Governor in the Model menu, select the Rate 1, INH key under ACT, it will change to ON. Leave Group set to Gr. so that the initial settings will carry across to all flight conditions, they can be separated and changed later. Select the % key on the right side of the screen, it will change to rpm. Turn on the RX and select the rpm setting screen on the GV-1 amplifier, select 2000rpm in the Set GOV box in the TX governor menu screen and set the GV-1 speed for 2000 rpm. Do the same for 1500rpm and 1000rpm in the Set GOV box in the TX governor menu screen. This calibrates the GV-1 rpm settings with the TX governor settings.

Now select the 1500rpm key under Rate for Rate 1, and use the up and down arrows that appear on the right side of the screen to set the desired governor rpm. The rpm screen on the GV-1 amplifier should match this setting. If different governor speed settings are desired for idle up(s), select the Gr. key under Group, this key will now display Sngl. Again, select the 1500rpm key under Rate for Rate 1, and use the up and down arrows that appear on the right side of the screen to set the desired governor rpm. This will carry across all the remaining flight conditions. If the same rpm is desired for all remaining idle up flight conditions, leave each in the Gr. mode. If not, then repeat the preceding step to set the desired speed for each. To disable the governor for autorotations, switch on the throttle hold flight condition and set Group to Sngl and set Rate to OFF using the down arrows.

The above technique yields automatic governor control and independent speed settings for each flight condition. Each flight condition can have up to 3, switch selectable, governor speed settings (including off). Each speed setting in each flight condition can have independent fine tuning (trim) control, over a specified rpm range if so desired.

To control the governor on/off condition, select Function in the Linkage menu, select the NULL key for Governor 2 function and select the desired switch and direction. Leave the switch selection in the Gr. mode so that the governor on/off switch is enabled in all flight conditions if this is desired. On the GV-1 amplifier, select the SWCD menu and see if the on/off positions for the TX switch is as desired. If not, use Servo Reverse in the Linkage menu in conjunction with the SWCD on the GV-1 amplifier to obtain the desired switch polarity.

Flight Trimming With Mixers
This section will explain how some of us Contest Types use program mixers to trim the helicopter once we have the model mechanically trimmed. Although you are free to use the digital trims on the front of the radio, some of us never use right and left or fore and aft cyclic trim. I have actually deactivated mine to eliminate the possibility of bumping them. We mechanically trim the model for a neutral fore and aft swash plate and about one turn of right cyclic for a clockwise rotating rotor. After we have adjusted the nose weight for hands off hovering in calm conditions and adjusted the size of the horizontal fin so that the model stays in trim in forward flight we then start working on mixers to tweak the trims in certain attitudes upstairs. We also use mixers to advance or retard the swash plate timing in an effort to make the model roll correctly in vertical lines and horizontal lines.

In the Model Menu click on Prog. Mixes. This will bring up ten mixes that you can use to trim the model so that the model stays in trim in many different flight attitudes. Don’t worry we will only be using a couple of them. The first mix we use is Collective Stick J3 as the master and AIL as the slave. We are using The collective stick for the master as opposed to throttle or pitch channel because this will eliminate the mix being changed if we adjust the throttle or pitch curves. For example: We use the Collective Stick to AIL mixer to adjust the right and left cyclic trim for forward flight and inverted hover. We do not use the digital trims to change trims for upstairs flight. Beside mix number 1 click on Inhibit. Now on the left side of the page under master click on Aileron. At the bottom right corner of the page click on H/W for hardware. Now click on J3 which is the collective stick. This is the master. Click Close and then click Elevator underneath Slave. Click on Aileron which will be the slave. At the top left corner of the screen click on INH to activate the mixer. Now click on Prog. Mixes at the top left corner of the screen which will take you back to the main Program mix page. Click on Gr. for group out beside mix number 1. Change this to Singl in every condition except normal for hovering. Now click on mix 1 J3 Aileron then click on NULL in the top left corner of the screen and select your switches. We use our idle up switches and throttle hold to activate this mix. Remember to do this for each condition. Click Close then click on Linear at the top right corner of the graph and choose Spline. This will give you a nine points that you can adjust for various flight attitudes in an effort to keep right and left cyclic in a trimmed state at all times. Click onthe Gr. for group out beside mix number 1. Our models typically hover at half stick whether we are in normal mode or idle up so we don’t adjust the half stick point in the mix because we have to do one aerobatic maneuver that has hovering in it. Now with the model flying along at all the stick position above half stick adjust each point so that the model stays in trim. Then roll the model to inverted flight and do the same. Whether you are hovering or flying around the model should always be very close to trim on right and left cyclic. Adjusting the points requires the same procedure as in pitch or throttle curves. Remember you can also add or remove points if desired.

The second mix we use is Aileron master to Elevator slave, but we will be using J1 which is the right and left cyclic stick for the master for the same reasons we used J3 for the master in our first mix. Follow all of the steps above in the first mix to set up the J1 to Elevator mix. You can use mix number two for the location of this mix. This mix is a little tougher to fine tune than the first mix as it will require quite a bit of time at the flying field to get it adjusted properly for each idle up. The mix should be adjusted so that the model will roll in a perfect line in idle up 1 for vertical up and down rolls. Then it should be adjusted in idle up two so that the model rolls in a perfect line while doing horizontal rolls. Note: we do not use this mix in throttle hold. Note: Left rolls generally require a little down elevator mix and right rolls generally require a little up elevator mix, but I have found that when starting a left roll I have to give it up elevator right off of center as I start the roll to keep the nose up. This is why we use a spline curve so that you can vary the mix in any direction to give the model what it needs to execute a perfect roll. Feel free to contact Cliff or myself if you need further instructions on how to use these mixers.

Throttle Hold
In the Model Menu click on Throttle Hold. Now you have to decide whether you want to use Throttle Cut which means when you are approaching the start of an auto you will pull the throttle hold switch, but nothing will happen until you lower the collective stick below a preset position. Once past that position the engine will go to idle where it will remain until you switch out of throttle hold. Very few contest pilots use this option because of the inherent risks. Example: If you pull throttle hold on and for some reason abort the auto before hold is activated you may forget to turn off throttle hold and go do some maneuver. You could find yourself upside down and lowering the collective when all of the sudden the engine goes to idle. This is not a desirable thing to have happen. So most of us use Throttle Hold which can be found on the right side of the screen. Pull on the switch you have assigned for throttle hold. In the throttle hold box on the right side of the screen click on Gr. and turn it to Sngl in throttle hold condition only. Now activate throttle hold by clicking on INH. Now at the bottom of this box click on NULL beside Switch. Choose the same switch that you choose for throttle hold in the Condition Select Menu and set it’s ON position. In the same box you will see Mode. This should be set to Manual.We generally leave throttle holds idle position tied to the throttle trim so that the engine idles at the same speed in throttle hold that it does in normal mode.

Using One Of The Sliders For Throttle Trim
Some of you may dislike digital throttle trims as much as I do so here is the method for setting up one of the sliders for use as a throttle trim. Go to the Linkage Menu and click on Function. Beside CH 1 for Throttle and under Trim click on T3. At the far right hand side of the page click on Sel.H/W. Choose the slider that you want to operate throttle trim. Now on the far right hand side of the page click on Gr. for Group and change EACH flight condition to Sngl. Next flip on idle up 1 and at the top right hand corner of the screen click Null. This will deactivate the throttle trim on idle up 1. When you do this you notice that the slider that you have chosen which is highlighted in red in the display on the right hand side of the screen is no longer highlighted in red. Now go through each of the remaining idle ups and Null the throttle trim out there as well. We do not want the throttle trim working when we are in idle up. Even though the throttle trim is separated on Normal and Throttle hold they will still be tied together because we are using a mechanical trim. Click on Trim at the bottom right hand side of the page. In the center of the screen you will see Trim Rate and beside that is a number which reads 30, which is the default setting. This number determines how sensitive the trim is. I have found 12% to work good in my set up. I will explain flight trimming or adjusting the sensitivity of the trim shortly. Beside Trim Mode you will see ATL. We want to leave this in the default setting as we only want the throttle trim to work when the throttle stick is below half stick. Below that is ATL Reverse. This may have to be changed if the trim is not working at low throttle. Next check to make sure that the trim slider is working in the right direction. If not go to the system menu and click on H/W Reverse. In this page you can reverse the direction of the slider.

Adjusting Throttle Trim Slider Sensitivity
With the slider set to the middle or neutral position mechanically adjust your servo wheel and throttle pushrod so that the engine idles at this trim setting and with the throttle stick at full throttle the carborator goes wide open without binding. Also your ATVs and AFRs should ideally be set at 100% or higher if you want optimum resolution and power from the throttle servo, but in any case they should be set the same. Example: High and low throttle AFRs should be set to -100% to +100% or from -120% to +120%. You get the idea. Now with the engine mechanically set to idle at half trim adjust the Trim Rate so that when you go to high trim the engine is idling at a fast idle which will come in handy on cold days on the first start up. When you pull the trim all the way down it should kill the engine.

Saving Models To The Flash Card
My first thought and recommendation here is that this is a computer and strange things happen sometimes. Always back up your models to the flash card so as to protect your program. If you make changes at the flying field remember to save the model when you get home.

As far as I can tell, the 14MZ will not overwrite any program as the 9Z would. If you save a model to the flash card, it will create a different model. If you copy the same model to the card more than once it creates a different model with a suffix. For example: If I save my Tempest to the card I get Tempest, I I copy it again, on the card I see Tempest-1. I If repeat I get Tempest-2. I can delete the old programs and rename the newest copy to Tempest and I have the latest version only in the card. It works the same way in the transmitter. If I copy from the card, I get a different model and I must delete the original and rename the copy. BE CAREFUL when you do this so as to NOT delete your primary program. A good idea would be to put the days date after your model name so you will know when you updated last.

Page One