Gyro Hookup ??

[Texas Buzzard]

I was given two Esky professional GYROS.
I see EK2-0704 on them.

I have no instructions nor knowledge of how to connect then to the servos
( Aileron & Rudder ) on my powered airplane. Yes it is a 40 sized slo-flier.

I would appreciate anyone telling a bit about how to connect them to my servos.
THANKS

[Brandano]

Hem, does it actually need gyros, though? Gyros can only act to dampen movement in one axis, but can't really work as an autopilot on their own. Heading hold gyros might try to maintain a specific attitude, but they will drift over time

[eflightray]

As Brandano says, does it need gyros? or do you just want to experiment with gyros?

Gyros have been very successful in taming unstable models, also in allowing tame models to be pushed further, here's an interesting video - SU-35 gyro testing (http://www.youtube.com/watch?v=1_Eh3pMC-1o) (sorry if anyone has dial-up). There are also other gyro videos. But it shows what can be achieved with that type of planes.

Doing a search on gyro, (in just the thread titles), in the plane forums, (but not in the Helicopter forums ;) ), will bring up plenty of information on how they have been used, that's if you want to experiment on your model.

[lincoln]

I've used a gyro on the rudder as a yaw damper with great success. This was on a glider, but I've read many places that it's nice to have to keep takeoffs straight with power. One input is the rudder signal from the rx, the other a control channel, and then the output can go to the rudder. The control channel gives a rate gyro of variable gain in one half of travel, and a heading hold in the other. Gain is zero someplace in the middle. On the glider, I just went with max gain on the rate gyro at all times and it worked great. I think the default if you don't plug the control channel in is heading hold, unfortunately. You need to try different orientations of the gyro until you see the right results, though with yaw damping you might look for some kind of orientation marking on the outside, since this is similar to the normal helicopter application. You might also look up an article by Blaine Beron-Rawdon on using a gyro to make a glider act like it has dihedral. Since you're probably not using flaperons, you could probably use one gyro for that instead of a dual gyro, and use a y harness to connect both aileron servos, if you've got two of them.

[Texas Buzzard]

Thank you men for the inputs. I want all I can get.

Yes, I have not used a gyro before this. The reson I contemplated using a gyro on the ailerons of this plane "Regina" stems from the fact that at times the plane may get as far away as a good quarter of a mile.

W.S. - 84", ave. chord =14", fuse length = 72". Airfoil = NACA 2412. Dihedral will be 4 degrees under each tip. Empty weight = shooting for 7.75 pounds.
Fuel tank has 68 cubic inches. Intend to use gasoline/Red Line Racing oil at 10%. Engine is a Saito 56 4-cycle running on C & H Ignition (sparker). Plan to start tests on a 12 x 6 prop....want to use a 13 x 5 or 6 on the flight.

Take off weight should be 7.75 pounds + 3.2 pounds of gasoline /oil mix or
10.95 pounds. Takeoff from a 4-wheeled dolly.

The object id to fly one way along 265 miles highway from Mexico to San Antonio, Texas. With a tailwing estimated ground speer will be 52 MPH. Flight to occur in April when good tailwinds have a high frquency of occurring.

So you can see that while piloting from the back end of a PU trock I meed all the help I can get.

I learned one thing from you men so far - a gyro mearly dapens a roll if on the ailerons....I guess gyro will not "corrct" too steep a bank.