What is normal setting for telebee type gyro and Dx7 on Hurricane 200

[robl]

I am using a telebee gyro right now and I can't go higher than 45% on the dx7 without wag, getting ready to try my 401 and 3153 servo but wondering if other people are getting much higher numbers on these same type of gyros.

[Mikej]

I have a Telebee and a Futaba 3151 on my 550 (using a Futaba 6EXH) and I have my gain at 94%

[robl]

right but I specifically need to know on a hurricane 200 and with a dx7 (JR type) radio.

[Mikej]

right but I specifically need to know on a hurricane 200 and with a dx7 (JR type) radio.

Sorry - I didn't notice that it was for the 200

[philiusm]

I've got an ep200 with a 401 gyro and a nodescript servo, it all came as a kit.

If I go above 40% HH gain I get tail wag.

I found that mounting the gyro on the top of the frame at the back gave the best performance.

Regards,

Phil M

[robl]

40% on JR radio? Where did you mount it on the back? There doesn't seem to be any room.

[philiusm]

I'm using a DX7. I have the gain channel on the gyro connected directly to the gear switch and I've set the travel adjsutment to +40% and -50%.

The gyro mount was a nightmare. I tried bolting a carbon fibre sheet to the center plate which allowed the gyro to be mounted tucked in the back between the boom and the boom supports. It was very close to the motor and the boom supports rested on the edge of the gyro case. This arrangement made the tail twitch when the motor was running. It was just vibration being transmitted into the gyro.

I then tried mounting the gyro on the top at the rear. As you state there's no room. First off I made up a little carbon fibre box. This drops in between the two side plates and sits on the center plate just above the boom mount. It's secured by two little self tappers. I then glued a carbon fibre plate onto this box giving a level platform for the gyro. There is about 1cm clearance between the blades and the flybar when they are pushed down to their extremes. If I have a really heavy crash the gyro may get hit but most of the rest of the heli will probably be trashed anyway.

[robl]

why not just mount your gyro between the frames on the bottom for the 401 like most people are doing. I only used one piece of tape to mount the telebee. I might try a second piece and see if the gain goes up and then try the 401.

[philiusm]

I thought long and hard about the mounting position. One of the videos has the battery hung between the skids and the gyro mounted where the battery would normally go. I wanted to use a 3S Evolite battery and it is too thick to mount between the skids. Mounting the battery between the frames used up the space where the gyro would go. The other thing was I couldn't see how I could adjust the gyro with it inside the frames. So I opted to mount it on the back. I was influenced by the fact that this is the location on my Swift and it seems to work well.

It doesn't look too bad with the canopy on but more importantly it works really well with no drift or any of the twitching that I saw when it was mounted close to the motor.

It was just a lot of work to make up the mount as I started with just carbon fibre cloth and resin.

[Pinecone]

Gain numbers aren't a contest. :)

You want to run between the lowest gain that will give you the performance and the highest gain without wag.

And for your tail servo life, lower gain is better as it works the servo less.

And everyone's gain will be different, differences in tail servos (even same bran/model), amount of slop or tightness, desired performance, flying skill, etc.

[robl]

Yes absolutely, but if some people are getting gain of 72% on a telebee and I'm getting 45%, that means I have some serious vibration issues or other issues to content with. I put an extra layer of tape and will try again, otherwise I am going to see how the gy401 does.

[Pinecone]

Is your tail holding? If so, no big deal.

If not, THEN it is a problem.

I am putting a Logictech 2100T on mine. 8 grams versus 26 grams.

[robl]

its holding okay, but no where near as well as the tail holds with the 401. With the 401, you can pop the case off and lighten it. I think I might take the top of it to make it lighter. But since mine at least is tail heavy, the extra weight up front will probably be beneficial.

[Wazzer]

So just to be clear

The Telebee gyro is set up in the DX7 transmitter exactly the same as a 401? ie. using travele adjust on the gear channel to change the gain?

I have just swapped my 401 from a shogun to a Hurricane and replaced it with an Align RCE 500 (same as telebee) and i cant get the gryo to go into heading lock mode.

The light stays lit all the time but the servo movement doesnt reflect HH mode.

Can any one shed some light?

[Mikej]

So just to be clear

The Telebee gyro is set up in the DX7 transmitter exactly the same as a 401?

I have just swapped my 401 from a shogun to a Hurricane and replaced it with an Align RCE 500 (same as telebee) and i cant get the gryo to go into heading lock mode.

The light stays lit all the time but the servo movement doesnt reflect HH mode.

Can any one shed some light?

Wazzer,

How are you setting HH mode ? On the Telebee Rate mode is negative and HH is positive.
Sorry if you already know this.

Cheers,
Mike.

[Wazzer]

Hi Mike

Am in the office at present i cant be 100% but i am 95% sure i have HH set as a positive number and rate as a negative. I have left the settings the same for the new Tellebee type gyro as for the 401 but all the changes up and down the settings doesnt seem to get the gyro into HH.

I have set the manual gain pot on the gyro to 100% and connected the Gyro remote gain connector to the gear channel on my RX.

am i doing somthing very wrong?

[Mikej]

Hi Mike

Am in the office at present i cant be 100% but i am 95% sure i have HH set as a positive number and rate as a negative. I have left the settings the same for the new Tellebee type gyro as for the 401 but all the changes up and down the settings doesnt seem to get the gyro into HH.

I have set the manual gain pot on the gyro to 100% and connected the Gyro remote gain connector to the gear channel on my RX.

am i doing somthing very wrong?

Wazzer,
I don't hav emine connected to a Spektrum (yet - got one the other day) so I'm not sure which port it is on there I'm afraid.

Cheers,
Mike.

[Wazzer]

no worries mike

Will let you know wht i end up with when i get it sorted

Cheers

Ben

[robl]

you are doing nothing wrong. on the dx7, make sure you set the gyro to the gear channel so you can adjust the gear endpoints for gain. then makesure the gear switch is up for HH mode and down for rate mode.

[Wazzer]

Yep thats how its set up

will have to go through it all once a again

Cheers

[CompuFoil]

The 401 is setup a bit differently on the DX7. On the DX7, when you are in the gyro gain screen, anything above 50% is HH mode, anything less than 50% is rate mode. In other words, the 50% mark is like your zero position. less than 50 is negative, more than 50 is positive. So if you try to set your numbers up like in a Futaba and use 28, then you will be in rate mode, not head holding. The 401 must be initialized in in HH mode. Only then will you get a steady red light on it.
Hope this helps!
Eric

[Wazzer]

I managed a few test hovers today with the Shogin and Teleebee Gyro (align RCE 500)

I ended up with a DX7 tx setting of about 75 and she seemed to hold not bad

my flying is still very basic though


thanks for all your help and feed back guys, I love this forum!

Ben