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I just purchased and received six GY48V gyros and installed one on my one planes' elev and aile. I have standard no name slow servos.....what should I put in as far a delay is concerned on the gyro dial to use it with these servos?
I've got the rate cables on both gyros on a Y adapter going into my gear channel. Can I put a third gyro on my rudder and have the rate pigtail go into my unused flaps channel to control gain for the rudder? anyone foresee any problems with this set up? Hats off to melnic for this great thread! thanks a lot for your effort and info and advice! It made me realize that I wanted gyros on in order to get in two or three more times as many flying days next year! |
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Yes, you can control the third gyro gain with the flap switch. You didn't mention what kind of plane you are flying, but if it is an electric and you are powering the radio with a BEC there is another consideration.
The gyros themselves use some power. And the gyros will cause the the servos to be much more active, using still more power. All this adds up and may be too much for your BEC. Some BEC's have fairly limited output capability and can be overheated, at which time they will shut down. Be sure to consider this before flying with all three gyros active. Dick |
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How do you get around this...BEC being overtaxed? Know anything about my question about delay for the slow servos?
I have it set up so that I have "off" and rate mode at 30% on both gyros. Quote:
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Same goes for being directly connected to one gyro output: Either you have two gyros, one for each flaperon, with Tx flaperon mixing, or you have one gyro from a single Rx aileron channel which feeds into two onboard mixers, one for each aileron servo. I'm pretty sure the former arrangement wouldn't work for HH mode, as deploying the flaps would mean you are commanding opposite roll rates from the gyros, and they wouldn't work together properly. Not sure about rate mode but think it would work. I think the latter arrangement is ok for either, but mixers and gyros can have incompatibilities in terms of signals. |
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See this page on eflightwiki: http://www.eflightwiki.com/eflightwi...CAN_DELIVER.3F About delay, you might find this thread helpful: http://www.helifreak.com/showthread.php?t=207888 Although it's talking about helicopter yaw, the principle should be the same, except that you may not want to set the gain as high as possible. (where it talks about piro stops, think halting a roll sharply if you're using gyro on aileron) The lower gain means you might not see any bounce even at low delay settings. Basically turn up the delay if you get oscillation at a gain setting that is not excessively high. That is, if you aren't getting enough stabilisation, but you are getting some oscillation, increase the delay rather than decreasing gain. It's not quite as clear cut as heli setup though as I don't think there isn't a clear optimum gain value, it's more a matter of taste. |
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"or you have one gyro from a single Rx aileron channel which feeds into two onboard mixers, one for each aileron servo." Is this possible with a DX6i? How would you set it up? Setting up 2 gyros to me sounds a bit tricky. Question 2! I'm thinking of adding another gyro also for the rudder. Where do you plug in the red wire? I only have the Aux 1 spot left on the RX. Aileron gyro is on the gear switch. Jack |
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Last edited by Dakine48; Nov 15, 2011 at 10:44 AM.
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Ready to maiden my Flyzone Sensei high wing foam trainer with GY48v gyros installed on the elev and aile. Do I need to make any adjustments to the actual dials on the gyros themselves? I think one pot is for servo delay and the other for control surface travel amounts?
I've got a Rates mode/off setup on Ch 5 for the gain on both with a Y connector to that channel from both gyros and have travel in my tx set to 30% gain on Ch 5 (gear channel). I also have my dual rates and expo set up to my liking. |
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"Use a seperate BEC, and disconnect the red wire on the ESC Rx connector."
Could you just add a second BEC and leave the bec from the esc also hooked up....possible, giving you double the back up? |
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Last edited by proweddingphotos; Nov 15, 2011 at 11:35 AM.
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Plug into either open slot in your receiver. The receiver doesn't care.
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Latest blog entry: Eagletree Guardian vs. Eagletree Vector
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Gyro HK 401B Switches
Hi,
I have looked all over the forum and cant find any direct information about what the letters and switches mean on the label on the Gyro HK 401B i.e. (DS and DR) Rev I understand but what about the other switch, I have the Gyro installed in a Super Cub and it seems to be working OK with both switches down and the 2 dials are set at about 50% and the single wire plugged into Thro (whatever that means) on the receiver, ? Thanks for any help Ron |
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Pretty much you can follow the Futaba 401 manual.
and it's pretty much same functionality as the GY48 DS is Digital Servo. Setting is Digital or Analog DR is Direction. setting is Normal or Reversed. Set DS to OFF for Analog servo and ON for Digital Servo Determine the setting for DR based on the control surface reaction when lifgting the wing. (Aileron mode) |
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Thanks for that, now you have explained it's just common sense and I fill a right dip
Ron |
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I would bet that you don't use the rudder much in flight. Most people fly helicopters in HH mode and we use rudder all the time. I use rudder on all my planes. |
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