Hpilotrc

My Feedback: (1)

In Realflight G5 there is a YAK-54 that has a "gyro". The gyro's are on elevator, aileron, and rudder and you can tell just by how stable this aircraft is!

Does anyone know of a 3-axis gyro that is available? The flybarless ones would be great if they provided a firmware/ software change but they don't at this time.

I would like to try this in my electric airplane but do not really want to have to purchase 3 GY520's! It would be nice to have a 3-in-one package.

Thanks,

Michael

JNorton

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Look at FMA flight stabilization. http://www.revolectrix.com/cat.flightstabilization.htm
John

Hpilotrc

My Feedback: (1)

JNorton,

No that is not the same thing. From what i remember that unit will basically level the airplane out with the horizon.......if you get into trouble of return the sticks to neutral. The role of the 3-axis gyro would be to keep the aircraft in it's current flight path/ position.

For instance if you pull straight up in a vertical position with enough throttle and thrust you could actually "hover" the aircraft there and if it was trimmed out properly the aircraft would just stay there (assuming enough power to keep it at a given alititude). Moving the ailerons would allow a nice controlled roll....etc.

Michael

JNorton

My Feedback: (2)

A correctly trimed aircraft will remain in its posistion. I fail to understand what you want or the advantage. Sorry. Perhaps someone else will be able to help.
John

onewasp

___________

Sounds as if he wishes to "Fly" without the piloting skills necessary doesn't it ?
To each his own .
On some of the later military, manned aircraft, like the F-117 and many others, the computer is a necessity.
Model airplanes for aerobatics - I feel that gyros are not an acceptable part of the game .
The contest boards do too.

Some I have spoken with feel it will help them to 'learn'. I disagree as you have no idea what inputs are being made electronically. So how could you "learn' ?

Ahhh well _____

BBW Walt

My Feedback: (11)

The easiest solution to your question is to install "2" GYA351 Futaba Gyro's, 1 for the elevators and 1 on the rudder. Leave the ailerons typical. I see all these comments about doing this and most haven't a clue as to the set up, what they will or won't do from actual experience. I personally know 3 planes including one of mine in the past that tried this and had a blast doing it. I no longer fly with gyro's but it was fun to see what the plane would do and a major learning curve to set up and get these to operate correctly. The Gyro's mentioned will operate as heading hold and normal mode. They can also be programmed to operate both functions and off from 1 three way switch. My opinion from actually owning, programming, and flying these is that they will work as training wheels but will not eliminate actual stick time in a non gyro situation. Fly for fun and learn what you can, yep even Gyro's if your inclined. Walt

Hpilotrc

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OK so I guess I should have known better then to ask a question like that in this forum!

Yes Walt this is a solution...but if I had to go with separate gyros the only way would be with 3 GY520's....

I guess I will wait and hope that the people at Mikado will come to their senses and develope the software for their Mini V-Bar some time in the future... Of course Futaba could also surprise us soon althought their new FBL controller looks more like it's suited for a large nitro heli.

Michael

BBW Walt

My Feedback: (11)

The gyro's I mentioned are intended for fixed wing gyro applications and not adapted heli gyro's. Hope you find what your looking for

Silverexpress

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checkout the FY20a. It's a 3 gyro + 3accel stabilization unit for airplanes. It will provide you the same 3 modes as those in the RealFlight gyro simulation.

AmishWarlord

My Feedback: (5)

I also have been thinking about what if you put a gyro on the rudder for new pilots this would force them from the very start to use the rudder on turns instead of falling into the aileron "bank and yank" style of flying and thinking, "There I knew I could turn this plane without rudder. Now except for takeoffs and after landings I can forget about the rudder".

If you want total stabilization with no stability input you can use one of these. http://www.hobbyking.com/hobbyking/s...dProduct=11733


I was thinking about putting one in a trainer to see what it will do. If it works the way I think it will you'll have a stable trainer that doesn’t have any tendency to balloon out of turns and get knocked about by the wind as much so there would be more flying days for students to learn.

Also unlike the FMA type autopilot systems you'll still have to fly the plane as it will only go where you point it and not self right out of turns.

ww2birds

My Feedback: (14)

Has anyone tried the 3-axis gyros (intended for flybar-less heli applications) e.g. Futaba CGY-750 ([link=http://www.futaba-rc.com/radioaccys/futm0835.html]http://www.futaba-rc.com/radioaccys/futm0835.html[/link]) on an airplane?

Dave

Silverexpress

My Feedback: (1)

I've been thinking about this as well. It may not work though because of the algorithms used to control pitch and roll that rely on blade pitch.

I've found other threads (will post link in a little while) that talk about using tail gyros for helis instead.. it is actually quite common. One thread talks about using some pretty cheap but reliable tail gyros on planes. I myself just stumbled on this. I've got about 3 unused heli tail gyros at home since I converted over to fbls. Now I can't wait to plop them into a few foam planes I've recently acquired.

Seems like they are often used on ailerons and rudders.

Ailerons for windy days, and rudders for planes that have a high tendency to ground loop.

Car drivers are also starting to install heli tail gyros for steering hh.

BarracudaHockey

My Feedback: (11)

Its has nothing to do with "blade pitch"

The issue is that most of them are setup for 3 servo CCPM where 3 servos control aileron and elevator function.

AmishWarlord

My Feedback: (5)

Jet guys use them also. Though some use them and swear that they don't.

http://www.rcuniverse.com/forum/m_59...tm.htm#5999573

Silverexpress

My Feedback: (1)

Skookum's SK-720 provides a few choices in regards to swashplate setups. One choice is "1-servo mCCPM", and if I understand correctly, this is one servo per axis. Would this work?

BarracudaHockey

My Feedback: (11)

Yes, you would need a system that supports single servo.

Be interesting to try at least.

Silverexpress

My Feedback: (1)

Hmm...I've got a spare sk-720 sitting in a box at home. Shall we give it a try! I just need a satellite rx. I'll keep you guys posted. I'm currently on a business trip. By the way I've seen these things sell used for under $300 lately.

Skaluf

The Futaba CGY750 is optimized for helicopters. Futaba does not recommend attempting to use it in an airplane.

Steve Kaluf
Hobbico

Silverexpress

My Feedback: (1)

Info on FY20A
http://www.rcgroups.com/forums/showthread.php?t=1285059

Build your own 3 axis (for Helis, but should be able to adapt to planes)
http://www.rcgroups.com/forums/showthread.php?t=1233263

Gyro on rudder
[youtube]http://www.youtube.com/watch?v=KOuPeUE0_nQ[/youtube]

Single gyro on ailerons
[youtube]http://www.youtube.com/watch?v=HCdZtDB3LAo[/youtube]

HL F35 with Fy20A
[youtube]http://www.youtube.com/watch?v=Q3ZuFQ7LYmI[/youtube]

Good thread on using heli tail gyros on planes
http://www.rcgroups.com/forums/showt...highlight=gyro

....and the King himself......drum roll please......
[youtube]http://www.youtube.com/watch?v=1_Eh3pMC-1o[/youtube]

.....let's nominate this guy for President!........
[youtube]http://www.youtube.com/watch?v=r33aWb7klWI&feature=mfu_in_order&list=UL[/youtube]

A real good video that shows a glimpse of 3 heli tail gyros used in a plane....
[youtube]http://www.youtube.com/watch?v=5So-MzgRD90[/youtube]

......so the reason why I'm so interested in this is because for the past year I've been flying a tiny Trex 250 with an FBL unit. It's amazing the control an onboard computer provides. About a month ago I started flying planes, and then came upon the FY20A, and the Gryobot 900 wing. Two nights ago I discovered the thread at RCgroups in regards to using heli tail gyros on planes....

Now fast forward, I've got a PKZ Wildcat at home that's on its 3rd cowl. So I'm thinking why not slap on a heli gyro! Now you guys got me thinking about the SK-720.....

Here is a video of me flying my Trex 250 at the AMA field with gusts of up to 34 mph that day.
[youtube]http://www.youtube.com/watch?v=cele1OJ0ARY[/youtube]

Silverexpress

My Feedback: (1)

Hello,

Well, I never got around to installing and tweaking the sk-720 in an airplane. I have however installed heli tail gyros with success. In my opinion, at minimum you can add a gyro on your ailerons and experience a an improvement in takeoffs, landings, and windy day flying. No real need to go a full three axis. For tail draggers or short wheel based trikes, i'd suggest another gyro.

There are currently 3 axis gyros that I know of specifically for airplanes....

1. FY20A II
2. Gyrobot 900 wing
3. Ruby (www.uthere.com)

Have fun guys. I'll soon begin the build of a TP Spitfire and am planning on going all out in regards to scale detail. And this work of love will have gyros to act as a safety net when needed....

Silverexpress

My Feedback: (1)

Check this out....

http://www.rcgroups.com/forums/showp...&postcount=506

Red B.

Here is what you are looking for: [link=http://www.lf-technik.de/shop/product_info.php/info/p4326_GyroBot-900-Wing.html]GyroBot-900-Wing[/link].
The Gyrobot is a 3-axis gyro with an airspeed sensor. It seems to be a very capable, albeit quite expensive, piece of equipment. There is also a special jet version available (different software).

Silverexpress

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For those wanting to try this gyro stuff....

http://www.rcgroups.com/forums/showp...&postcount=515

Silverexpress

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Looks like someone got an SK-720 flybarless heli gyro to work on an airplane. Cleans up a great deal of wiring when compared with using heli tail gyros.

http://www.youtube.com/watch?v=b8cHp...VCBDzs&index=3

Silverexpress

My Feedback: (1)

Here's a real good flight report on the new E-Flite UMX Beast 3D with AS3X system (3 axis gyros)....

http://www.rcgroups.com/forums/showp...&postcount=447