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Gyro for T-Rex

Old 10-23-2007, 03:28 PM
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t9dragon
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Default Gyro for T-Rex

I have a T-Rex that I would like to get up in the air in the next week or two. The only thing I have left to get is the gyro. What one do you guys recommend?
Old 10-23-2007, 03:30 PM
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madmodelman
 
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Default RE: Gyro for T-Rex

I've used the Align one for 17 hours flying with no problems, not expensive either.
Old 10-23-2007, 03:34 PM
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Default RE: Gyro for T-Rex

How much is it? Does it allow you to use a digital servo for the tail rotor?
Old 10-23-2007, 03:37 PM
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Default RE: Gyro for T-Rex

I've had great luck with two Futaba 401's, both with digital servos. One on my t-rex, and one on a 30-size heli. Easy to set up & they hold very well.
Old 10-23-2007, 03:50 PM
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Default RE: Gyro for T-Rex

Hi, £55, ($110), blurb says it does most digital servo's, I have an SE V2 with cheapo Align $18 servo's all round, no problems.

I admit that on my scale 600CF I use the GY401 with digital servo but I have no trouble with the 450.

http://www.modelhelicopters.co.uk/ac...info_9632.html
Old 10-23-2007, 04:24 PM
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Default RE: Gyro for T-Rex

The vast majority agree that a solid head hold gyro like the GY401 is the right way to go.
I have used a lot of different gyros on a lot of different helis, and a proper head hold gyro makes a huge difference in how the heli behaves. Much more so that which tail servo you put on.
I am itching to try the Logictech 2100T that is reported to have very good head hold behavior, and it is just over $100. I have not use that one myself, just heard things from a few people.
But you will not be wrong to get a Futaba GY401.
Vince
Old 10-23-2007, 05:21 PM
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Default RE: Gyro for T-Rex

401 serves my 450 V2 well, started out with a 9254 then switched to the smaller lighter HS81MG. Works great.
Old 10-24-2007, 12:50 PM
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Default RE: Gyro for T-Rex

Don't skimp on the Gyro!!!!
I flew the E-flite G90 for ages and it was pretty good. I didn't want to spend the money at the time on a 401. I have recently fitted a Logitech 2100 and now I know what a GOOD gyro will do for your heli. I can drop down vertically, tail first, with no break out of the tail at all.... Don't skimp on the gyro!!!! This 2100 is good and also costs a little les than the 401. It is the same size as the G90.
Old 10-24-2007, 01:06 PM
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Default RE: Gyro for T-Rex

Do you have a link to the Logitech 2100?
Old 10-24-2007, 01:38 PM
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Default RE: Gyro for T-Rex

not logitech... it's logictech. has no relationship to the computer accessories company.
Old 10-24-2007, 01:44 PM
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Default RE: Gyro for T-Rex

Where can I pick one up at? Will the digital servo work with it?
Old 10-25-2007, 10:18 AM
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rlsloan
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Default RE: Gyro for T-Rex

I use a 401. Works fine but I wouldn't be concerned about using one that is cheaper. Check http://www.helihobby.com/html/heading_lock_gyro.html.
Old 10-25-2007, 12:43 PM
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Default RE: Gyro for T-Rex

Futaba G401 and Digital servo S9650 the best you can have and they might be purchesed with discount at Tower Hobbies (Buy it in combo and save also save 20 dlls more by buying more than 150 dlls.)
Old 10-26-2007, 01:02 PM
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Tolla
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Default RE: Gyro for T-Rex

Yes, works with digital servos. Check out test at Trextuning.com
Old 11-11-2007, 07:14 PM
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mslman
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Default RE: Gyro for T-Rex

Has anyone tried the Logictech 2100T on a Trex 450SE V2?
Old 11-11-2007, 07:33 PM
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USHobbySupply
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Default RE: Gyro for T-Rex

Not on a V2, but on BeltCP and HDX450. Wonderful gyro
Old 11-12-2007, 01:01 PM
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Default RE: Gyro for T-Rex

tolla,

i have a 450 with nothing fancy, stock everything, its been on the bench for a while being repaired. now that its ready to fly again, im having some issues with the tail.
im running a 2100t, which i noticed you like, so im hoping you might be able to help. the tail servo seems to be 'sticking' or just not responding to left input. on the bench with no power applied (motor unplugged) right rudder input will push the servo fine, left input will either do nothing, or bring it back to center. i have the gyro set up as it says in the instructions with the Tx gains etc... the servo is not bad, as when i remove the gyro from the circut i have full control of the servo with the Tx stick. im really hoping its a set up issue, and not a bad gyro.

sorry for being long winded, hope you guys can help out.

zerofox
Old 11-14-2007, 03:23 PM
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Tolla
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Default RE: Gyro for T-Rex

zerofox,
maybe the servo limit on the gyro is not set correctly in one direction.
Old 11-14-2007, 04:41 PM
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Default RE: Gyro for T-Rex

tolla,

thanks for the response, didnt think one was coming.
actually, i needed to set the 'zero point'. it was halfway tweaked toward the right to start with, anyway, i got it figured out, should be doing a test hover today...

zf
Old 11-17-2007, 08:08 AM
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stevennh
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Default RE: Gyro for T-Rex

madmodelman,

I had a 500X Align Gyro on my 450SA with a Futaba 3107 Servo and it worked very well. After my fourth flip attempt turned out badly (flybar took the 500x for a long fatal ride after I flew into the ground inverted), I upgraded to a GY401 with the 9650 digital servo (and I put the 401 inside the canopy!). The hold is very, very solid with this setup.

Steve

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