As a natural reaction to the spinning blades, the fuselage of the helicopter will always want to spin in the opposite direction. The tail rotor generates sideways thrust in the same way as an airplane propeller generates thrust.
If the amount of thrust equals the level of torque being generated from the spinning main blades, then the helicopter fuselage won't spin round. If the thrust exceeds the torque, the fuselage will yaw one way and if the torque exceeds the thrust then the fuselage will naturally yaw the other way.
The use of yaw control in rc helicopters is made easier by a gyro which is an electronic device that is connected between the receiver and the tail rotor control either a servo or small motor.
The gyro, technically called an accelerometer , senses any rotational movement of the helicopter that isn't a result of a signal to the receiver, and it makes fine and rapid adjustments to the tail rotor speed or blade pitch to suit the torque force at that precise moment, hence dampening out any unwanted yaw. Gyros make these calculations and corrections at lightning speed, so much so that the pilot doesn't notice anything other than a stable helicopter!
The gyro sensitivity 'gain' can be adjusted by the pilot either directly on the gyro itself or remotely from the transmitter. Heading Hold Gyros go one step further than a standard gyro by performing more complex calculations to keep the helicopter pointing in the direction that the pilot intended. A HHG will 'learn' the orientation of the helicopter and maintain this heading until the pilot inputs a definite yaw control that will override the gyro. Once a signal has been received from the transmitter, the gyro learns the new heading and keeps the heli pointing in that direction until a new command is received.
Heading Hold Gyros more or less eliminate unwanted changes of direction forced on the helicopter by wind gusts. The gyro will prevent the helicopter from swinging naturally round in to the wind, in the same way as a weather vane does the wind pushing on the tail will force the helicopter round in to wind , because it will know that the change in yaw command did not come through the receiver, and so was not made by the pilot.
Clever stuff indeed! HHGs, once an expensive luxury, are now commonplace and almost all rc helicopter gyros have this feature.
Many smaller rc helicopters use micro-processor controlled printed circuit boards PCBs to save space and weight. The PCB-based unit is a device that can potentially depending on the helicopter type combine the receiver, gyro and motor electronic speed control ESC on electric powered rc helicopters.
A further function can be pitch mixing, again depending on the helicopter in question. Separate components can of course be used, and often are, when the helicopter is big enough to carry the extra weight without problem, but on smaller RTF electric helis, particularly the cheaper fixed pitch models, a 3-in-1 or 4-in-1 control unit is almost always used to save weight and space. The mixing is done at the transmitter and a computer radio is needed for this function to be available.
CCPM setup can be quite daunting to the beginner rc helicopter pilot, and it's important that the setting up of the servos is done correctly and well. All servos must match exactly and linkage lengths must also match, so that all servos can work together equally. Hold down the MDL for 2 seconds, is it not responding? Maybe the button got stuck inside. You might be able to fix it yourself but if you are not confident in doing that, contact your reseller.
Hope you can help me. The motor will only start when over half way up on throttle. Hi Oscar do you know if the t16 can connect to a macbook to run an fpv simulator like velocidrone or any others?
If yes, what cable and how do i set it up? Hi Oscar thanks for all your informative advice. I have a jumper t16 pro and have downloaded free rider and fpv air2 to my pc windows When I plug the jumper in it does make a beep on the pc and shows USB icon in the jumper screen.
Or is there anything on the jumper I need to set up to make it work with a simulator. Many thanks. Him sorry if this in the wrong place, i need some help please. Iam new to open tx and i have a jumper t16 pro. Pls help! I think i will do it the next few days, if I encounter the same issue i will come back to you.
My Turnigy Evolution gimbals were starting to get sloppy and I was ready to upgrade to a big-boy transmitter. The Jumper T16 Pro got great reviews and support for multiple protocols sealed the deal. Getting a solid connection from transmitter to the i6AC receiver is a little wonky. I usually takes a couple of tries to get a full 5 bar connection, but once it connects with that full 5 bar connection is stays connected.
Your posts have been so informative.. I was an original purchaser for the t I get errors and Wrong firmware msgs.. I have spent more time tinkering with firmwares etc then flying and it is starting to bum me out.. I have both the 4in1 and R9 mods.. But the minimum voltage in specs for T16 pro is 7. Why set battery alarm below min voltage? Or what is the min alarm voltage I can safely set?
Can I go even lower than 6. Oscar, you might want to add a short chapter on how to create and align a model image. Took me a while to find out! Hi Oscar, first of all, thank you very much!
I learned a lot about how to fpv from you! Coming from heli, microquads and whoops are now my thing. To be able to fly almost anywhere is untoppable: Two months ago i sold my dx8 and got myself a T I heard that this is possible now. Is this the same as the external jp4in1? Is there anything important to know switching to internal? Otherwise if you only use the multi-protocol module, there is no point of doing it.
I just got my T16 Pro, and followed these instructions. It appears that the pot is working ok — the indicator for it moves properly all the way from top to bottom as I move it. But I keep getting this warning. I got the warning when I first turned on the radio, I got it as I moved the left pot during calibration, and now I get it whenever I move the left pot above mid level.
Any idea why this would be? Why would the left pot be connected to a trim warning? Check if there is a global function doing that? Anyway, since it was just a glitch in this unneeded model, it does not represent a real problem. I have a couple of models working now, and am proceeding to figure out how do more things with the T I just got a t16 pro.
After trying to add a new model from open tx, when I disconnect the usb cable I get a storage warning bad radio data on the screen. The new model is not added to the radio. Any ideas? I think this is again the problem with transferring in a model set to use internal radio module. Hopefully this will be is? I believe the fix would be to reinitialize the T16 with default files on the SD, and then avoid transferring in any models set to use internal radio.
Can you please explain how to flash firmware to x8r frsky receiver using Jumper T 16 radio. Post by jbeebo » Tue Jan 08, pm. Post by Kilrah » Tue Jan 08, pm. Post by kaos » Tue Jan 08, pm. Post by jbeebo » Wed Jan 09, am. Post by Kilrah » Wed Jan 09, am. Post by kaos » Wed Jan 09, pm. Post by gohsthb » Wed Jan 09, pm. Post by jbeebo » Wed Jan 09, pm. Post by Kilrah » Wed Jan 09, pm. Post by kaos » Thu Jan 10, am.
Post by jbeebo » Thu Jan 10, am. Post by gohsthb » Thu Jan 10, am. Post by jbeebo » Wed Feb 06, pm. Post by kaos » Wed Feb 06, pm. Post by jbeebo » Thu Feb 07, am. Post by kaos » Thu Feb 07, am. Quick links. I did find all kinds of useful other stuff though Sorry for long post I'm trying to be clear and detailed.
When setting up the rudder servo and gyro limits on a heli, it seems there are multiple means to the same end. I'm new to helis so wanted to run this by the more experienced folks here and make sure I'm not missing something Radio is running open9x-r First, I did the following: 1 set the ball 8mm on the servo arm. Here's where I see 3 different ways to set the travel extents, and I'm not sure which is best. This works well and gives full stick travel for full rudder travel. This works, but not well IMHO.
I tried it and it seems like no in Rate and HH mode. Is this the correct way? But as I understand it's best to get the bird flying well in rate mode, then switch to HH mode and adjust gain - then you're done.
TIA for any advice, suggestions or wisdom offered. Re: best practice rudder and gyro limit setup EXISE Post by kaos » Tue Jan 08, am 'limit' on tail servo does not limit the servo movement. It changes the piro rate. If you are new to heli, on your first set up don't change it, set it at unless it is too fast when you move your rudder stick. To limit the tail servo movement you need to use Gy48V 'limit' pot to do it. But gy48V sometimes won't do a good job, you may still have some binding with extreme right rudder.
I always set my limit pot on gy48v at 0 and it still binds on extreme right rudder. You MUST adjust your tail to hold at rate mode without drift or the tail will never hold right. This is the most important part of tail set up. Then switch to HH mode, it should hold.
You are done with tail set up. I slept on it last night and came to same basic conclusion so was glad I wasn't thinking crazy. But when I did test hovers I needed a bunch of right rudder stick to keep the nose forward in rate mode. Thus, I could fix 2 ways: subtrim or correct it mechanically on the bird. DR — Dual Rate setup. This setting is only relevant if your radio is later configured to utilize dual rates by associating this function with one of the switches. Reacting too abruptly to minor control movements can be difficult for a beginner or pilot who needs very precise control, while a stunt pilot may want intensely sensitive control to perform tight rolls and loops.
The pilot that wants to loop and roll and then land on a dime would want to control how sensitive the controls are at different points in the flight. At this stage in the setup, set all the fields of at least one selection to At this stage in the setup, set them all to zero 0. You will revisit this option many times as you fine tune the helicopter. We will return to this option later in the setup.
It controls how far the swash plate can travel up and down the main shaft be controlling the cyclic servos Cyclic servos are the Aileron, Elevation and Pitch servos connected to the swash plate. We will revisit this setting when adjusting the pitch. At this stage in the setup, select the NOR option from the drop down list and set the values to a linear curve from 0 to We will return to this option later to tune the throttle to your motor and flying needs.
0コメント