Quote from: anwar on November 04, 2010, 11:03:03 AM
Nope, rate mode is less than 50, and HH is above 50.  

For values above 50, the light stays lit and the various values from 50-100 are the various gains for HH mode.

Am I not saying the same  

Quote
and from 50 to 0, the HH mode (senstivity) gain is adjusted.

and Yeah .. I have my ch6 reversed... so its opposite for me  

Quote from: saurabhhsrivastavaa on November 04, 2010, 11:41:18 AM
Am I not saying the same 

Only when one takes into account that you reversed the gyro gain channel (which is not the natural/default setup ).

Just want to make sure any newcomers do not get confused about where HH and rate modes are, in the default setup where the gain channel is not reversed !

agreed   

Quote from: spitfire on November 04, 2010, 12:15:20 AM
Thanks a lot Suarabh for your information...!

I just saw Turnigy TG380 aeroplane gyro http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=6755
I dindt get what it is. I want to use gyro in aeroplane. Is there any advantage of using this gyro or is there any difference in using gyro which is made for heli and for aeroplane...?

Most of the airplane gyros that I have seen are 2 axis gyros. You can control a combination of yaw/pitch/roll depending upon the installation. This eliminates the need of installing 2 separate gyros. Primarily their basic function is the same as of any Heli gyro (except they may be missing Head Hold). See here -> http://www.keimod.com/shop/product_info.php?products_id=337

The gyro mentioned by you is also ok. You can use it to stabalize your plane like cancelling the unwanted drift/yaw or maintaining the wings level (on aileron) You will need to use 1 gyro per axis. So if you need to stabalize all the 3 axis, you need 3 of them on your model.

The video that I have listed below may help you understand the basic functioning of a Gyro.

Hope this helps.

How can we find if the turnigy gyro i mentioned is single axis or two axis...?
There isnt any information about it on their website.

It is single axis only. The 2 axis will have 2 servo input leads  and 2 servo output leads. They are expensive as well. 

Thanks Saurabh...! 

Hi Saurabh,

I have ordered a HK 401 for my TT Beaver 40. Planning to use it for the rudder as i find it little difficult to keep straight during takeoffs.

Please advice the initial gain setting for rate and HH mode.

Thanks

Arun

Wouldn't it a bit of rudder training on the sim work just the same ?

Will it help during take off ? Because from what I have seen, it creates more confusion.   Like Anwer Gi suggested its better to learn in the sim. I use to have the same problem as our official trainer (Mr. Aslam) in Nad Al Shiba field never teaches you to use rudder . It took me few days training on the sim and high altitude training to get a feel and master how to use rudder in landing and Takeoff. I believe it's a must, when you have windy condition on the field.

I had added ESKY gyros ( The cheapest you can get)  to my Cessna recently. I had added gyros for roll and pitch. I just wanted to get a test the usage for my next fpv setup. I am not sure about take off, but landing was as simple as it could be. Just to test the gyros, after I inclined it to the landing path, I left all the controls and throttled down to zero, It just landed perfectly without any control there after.

This is my first airplane that too a tail dragger. I have finished 4 tanks thru it. The last 2 tanks were spent on aborted take offs. I am able to start off the take off straight but suddenly the plane veers to the left. My rudder control is fine as I am already flying helis.

I have practiced a lot on reflex sim and able to comfortably take off and land at one spot without any problem even in cross winds. But in reality it is very very different. (I mean the takeoffs)

I am pretty confident that I can easily takeoff a real trainer with tricyle gear with the amount of sim time already spend.

I have read about the difficulties of taking off a taildragger due to various factors like the CG of the td is behind the landing gear which makes the tail hunt on take offs and landings.

Too late and i dont want to crash this beauty and decided to put on a gyro for a shortwhile for landings and takeoffs.

Tail draggers whose behavior is that way are usually handled by restraining the model at full throttle, and then letting it go.  This makes the take off run short, and gives more rudder authority to keep the plane in the direction the pilot wants (assuming the pilot can handle rudder, and any heli pilot should be able to handle rudder!).

Adding a gyro ALONE does not sound like it will solve your problems.

Anwar Ji,

Thanks for your quick input and appologise for using the quote option instead of reply in one of my post. As adviced by you I have gone thru the forum rules and will adhere to the same.

I have seen some videos where they have installed gyro on the rudder, the takeoffs were very straight even in crosswinds.

I am able to keep the model straight during taxi and speedups but the model veers left without warning. I have checked the controls and found ok.

Too much for a newbie without any pros around.

Thanks

Arun

The key is that YOU (and me) are one of the best gyros money CANNOT buy   If you are totally unable to keep the model going fairly straight, then the issue seems one of lack of rudder authority (probably due to lack of speed) or tail wheel setup.

Try opening the throttle gradually while taking off
also keep slight up elevator to give tailwheel steering authority
during initial run - keep about 40% expo on the rudder
to make smooth corrections

do not bang the throttle open.

I know this sounds contrary - but it does work

Quote from: deepikarun on February 01, 2011, 10:28:55 PM
Please advice the initial gain setting for rate and HH mode.

Hi Arun,

Sorry for the delayed response. I had these gyros on my foamies. (yaw and pitch) They performed well. infact pretty well.

I have experimented with gyros on rudder on nitro models as well. for the 401B, you may want to switch into the HH mode for initial take off. Since the gain can be adjusted via the Tx, you can well estimate the gain required during  a few initial runs. (Taxing on the ground). Once airborne, you may switch over to Rate mode.

Another thought. If your plane veers to the left ON THE GROUND while building up speed for takeoff, you may want to check the alignment (toe and camber) of the front wheels. A left wheel which has some resistance (which is not very free) to rotate may also cause this.

Quote from: saikat on February 03, 2011, 08:58:40 AM
do not bang the throttle open.

I know this sounds contrary - but it does work

Two schools of thought   One tries to give authority to the tail wheel, the other takes the tail wheel out of the picture !

The ground where we fly has lots of pillars on both sides of the runway and I am afraid that with such attitude of the plane it may crash against one of the pillar. Further the runway is not level, takeoffs are slightly uphill run.

Since it is my first takeoff, i dont want to take any chances.

I will be getting rid of the gyro after maybe 2 or 3 flights for sure.

Anwar bhai, you are right you and me are the best gyro money cant buy. But me gyro vibrates a lot during the takeoff.(My hands tremble).

I am so desperate to fly my plane that I have stopped taking my heli to the field since.

If somebody using reflex, please advice the plane model which is very close to the real ones.

Thanks & Best Regards

Arun

Quote from: saurabhhsrivastavaa on February 03, 2011, 10:02:14 AMA left wheel which has some resistance (which is not very free) to rotate may also cause this.

I checked the wheel they are moving freely.

hello friends today i am desperately trying to setup gyros (hk401b) on elevator and aileron axis for my extra 300. I need help and have following questions.

- I have plugged in the gain wire of elevator gyro in gear channel on my dx6i. How do i setup the gyros in rate/hh mode?? I am able to set the gain by changing the travel adj. in rate mode only. Please help.

- Will I be able to change the gain of both the gyros in flight. If yes how?? I have 6 channel receiver.

Please friends provide me your inputs as soon as possible.

Figured it out for the first question. It can be done using gear/F Mode switch.

Will need your input for the 2nd question.