Putting together a large futura and putting vector on it. Never did this before and could use some advice. Running powerbox royal and jr 11x jet cat 200sx

I use Futaba 401 in my Euro. I suspect that any cheap gyro that can be turned off from the transmitter will work. Gyros really help to exit flap spins and tumbles. Just release the stick and you are set!  I have flown my euro without gyros and exiting flat spin was a little on the scary side as a lot of inertia was building up.<div>
</div><div>I think you want to be able to turn them off when flying in non 3D mode or to get more extreme maneuvers like faster flat spins.
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</div><div>Have fun!</div><div>
</div><div>Arnaud</div></div>

I have always used the the Futuaba GY 401 on my Vectored thrust Eurosports with good effect. I am just waiting for my P200 Vectored thrust Futura to come out of the vinyl shop before I fly it next week I hope. I am going with no Gyros on that one as I have a feeling it wont really be a hovering type jet. I have the vectoring more for the tumbles, and for this you need zero gyro.. I could be wrong mind so may end up retro fitting a gyro or two.
Regards Al

Any suggestions for us JR users? The GY 401 instructions specifically say it is not compatible with JR servos. All the currently availble JR gyros are designed for helicopters (i.e. heading lock). Anybody used one of these with success?

Also don't want to spend $340 X 2 for the ACT Fuzzy gyro.

Craig

Craig

I use JR 770T gyros in my CARF 3-D Universe on JR 8715 servos (12kg 0.09 sec) Gyros are set at 100%

Dave

Dave,

The only available JR 770 gyro I can find is the 770 3D and it's instruction manual says it is "exclusively" designed for helicopters. Is the "T" a different version and is it available?

Thanks,

Craig

It is the 3-D Version Full Metal Jacket

Hi Craig. I have only ever used the 401 with jr servos. Usually the 8411, with never an issue.
Regards Al

Craig,

I have also used a 401 on helis driving a JR servo on the tail, no problems.

Yup same thing. Plenty of JR servo's with the 401. Works great.

Ali, Justin an PP....thanks. Obviously you guys figured out how to set up the 401. I'm finding the on-line manual really confusing since all the setup and instructions are written for helicopters and I'm not famaliar with Futaba jargon such as "AVCS". I just want to be able to turn on the gyros for my 3-D thrust vector maneuvers/recovery then turn them off. They also need to be programmed for what JR calls "stick priority", meaning that the sensitivity is reduced as the stick moves, reaching zero sensitivity at full throw. Can that be done with the 401?

Thanks,

Craig

Hi Craig,

I fly helis (450 size up to large gassers, and everything in between, electric and IC) as well as jets and all of the heli gyros (to the best of my knowledge) have normal mode and heading hold mode, and you can assign either or both to a three position switch. eg. you might have the gyro off in one position, mild gain on the second position and high gain on the third switch position. Don't be deterred by the fact that the instructions say they were designed specifically for helis, they will still do what you want. The manufacturers just say that as a heli is the most demanding application for a gyro. If it works on a heli, you can be assured it can do the job on your jet.

AVCS is futaba speak for attitude or heading hold mode. Don't use that mode. Use normal mode only. It sounds like you may be after 2 axis stabilisation. If that is the case, look at the Futaba 352. It has twin axis, single channel operation with remote gain adjustment on both channels. If you want stabilisation on 2 axes, and you are running 2 channels on each axis (probably unlikely) then you need to go for either a Futaba 351 or ACT fuzzy pro for each axis you wish to stabilise.

I have only ever used JR servos with futaba gyros in my jets. Best to locate the gyro between your receiver and your powerbox to protect your gyro from the high current draw generated by your servos.

If you just want single channel, single axis stabilisation, try a futaba 520 gyro. Very small, very powerful, very fast, very reasonably priced. AU$173 at www.perthrc.com. I have one in my flash and it works really well. I fly JR 12X. Let me know if you need a hand with the setup and I can show you my program. I am pretty sure it has stick fadeout or stick priority as you have referred to it. That is a must for our applications. I know the Futaba 351 has it on a dial on the main unit as I have used it. Futaba call it "control gain". If you don't have this control gain on the gyro you can generate it using a multipoint mix on your radio where you mix, for example, aileron input to the gain channel in an inverted "V" shape so that at centre stick you have max gain and at max stick deflection you have no gain. I think that is what you are after and for good reason. Most of the modern gyros have this within the unit's capabilities.

Hope that helps.

Craig.

Let me know how it goes . Maybe a vid?? Thanks Bill Also radio setup with powerbox royal. Does that sound a little demanding hope not

Craig,
Thanks so much for the information...yes, it does help. I'm looking to use gyros on both "pitch" and "yaw" thrust vectors and it sounds like the dual axis 352 would have been perfect. Unfortunately, it's apparently out of production. Anyhow, I'm going to look closely at the 401.

Thanks also for the offer on programing help with the 12X since that's the transmitter I'm using.

CraigG

Hi Craig,

You can still get the Futaba 352! Look here....

http://secureshopping.perthrc.com.au...28FUTGYA352%29

or here......

http://www.keimod.com/shop/product_i...e27e52c4404704

Sounds like the one you want. I have not used this particular gyro yet but am about to in my F15 on roll and yaw axes. I have used the 351 on a number of models and it is great.

Let me know how you go.

Kind regards,

Craig.

Hi Craig,

Was just looking at the 352. It also has the control gain adjustment on the main unit. If you dial this up, you get the stick over-ride that you are after and you retain the stabilisation sensitivity too. Cool stuff!

Regards,

Craig.

Great info Craig....I really appreciate it!