jetster81

Anyone set one of these in a jet ? any advise welcome thanks

quist

My Feedback: (198)

I have one on the ailerons of my f16. I have the gyro gain channel set to work with my right dial. It allows me to adjust the gain while flying. It works great. My gyro atv's are set at 75. This is the max gain available. Then as I turn the dial towards center the gain goes down. This is true for both normal and heading lock mode.

Dial all the way left is full normal mode. Center is off. All the way right is full heading lock mode.

Craig B.

turn the control gain up to a high setting to maintain your original control sensitivity otherwise the gyro will fight against your control inputs, slowing your roll rate on ailerons for example if you use it on the roll axis.

Hope that helps.

Craig.

quist

My Feedback: (198)

Good point Craig. That is why I like to control it on the Tx.

jetster81

Thanks guys.

HarryC

My Feedback: (1)

Much better to use a gyro that features fade-out. Fade-out goes by different names depending on the brand of gyro, it is the gyro's ability to reduce its gain as you move the stick so that by full stick the gyro's gain is zero and the gyro is not fighting you. Not all gyros have it. For those that don't, fade-out can be done from the Tx if you have decent software, by using the aileron stick as a gain controller. I do that on the ACT gyro on my Typhoon as the gyro's built-in fade-out option is not available due to the nature of its elevons.
H.

jetster81

Hi Harry I have PM'd you

flyinfool1

My Feedback: (2)

What Harry said

I have a pmix set to lower the gain as the control input increases so that at full throw the gyro is turned off. I then have that pmix on a switch so I can turn it on of off as needed.

Craig B.

That's exactly what the control gain dial does......that's why I said turn it up. The "control gain" dial on the Futaba 351 is effectively a stick fade out feature built into the gyro. The method you mentioned using the aileron stick deflection in an inverted v mixed to the gain channel is another way of accomplishing the same thing. No need to do that though if it is already in the gyro software....

HarryC

My Feedback: (1)

Ah that makes sense Craig, I am not familiar with futaba terminology and thought you meant turn up the tx control travel

Craig B.

No probs Harry, just different ways of accomplishing the same thing. Either way you need to run some sort of stick fade as you have pointed out and in some cases the mixing method you have described is the only way of doing it.

Craig.

mjunior

Can the GYA351 be installed in a delta aircraft operation with elevons?
Regards.

quist

My Feedback: (198)

No you need the GYA352 for a delta wing. It is a dual axis gyro.

mjunior

Dear quist,
Sorry for asking but are you sure? A delta wing aircraft uses elevons requiring one elevon conected to one reciever slot and other elevon conected to a different receiver slot. This is a similar approach of an aircraft with flaperons.
It seems to me I don't need a dual axis gyro (like a 352) but a single axis with dual ouptup like the 351.
Regards

DrYankum

My Feedback: (11)

I'm curious. What is the need for, and the advantage of a gyro on ailerons. Understand possible need on rudder or tail wheel, but ailerons?

quist

My Feedback: (198)

The 352 has the elevon mixer built in. The 351 does not. I do use flaperons with the 351 and it works.

mjunior

OK, thanks.

DrYankum

My Feedback: (11)

Quist....Gyro for ailerons of f16? Please explain

quist

My Feedback: (198)

So the plane presents better. Our f-16 wings tend to bounce and the gyro stabilizes the wings.

DrYankum

My Feedback: (11)

Picking up a used Avonds F16 this weekend, which is what whetted my interest in the aileron gyro. The Avonds doesnt have ailerons, though, just elevons or is it ailerator

quist

My Feedback: (198)

It uses ailevator

mjunior

So, the question that has been asked and answered several times....

Was is the pratical difference between ailevators and elevons since both control pitch and roll?

Craig B.

Yes is the answer. The 351 is a single axis, dual channel gyro which is exactly what you need if you are running elevons, flaperons etc.

The gyro does not know or care if it is connected to flaperons or elevons.....the mixing within the gyro is the same. The only difference is that, when you are suing elevons, you plug one of the available channels into the elevator channel rather than the flap channel. The gyro does not care which channel the signal is coming from, whether it be the flap channel or the elevator channel....function is the same within the gyro.

I have 4 of the 351's installed in jets mostly on flaperons but also an act fuzzy pro (which is functionally almost the same as the 351) installed on the tailerons of my avonds F15....all working well.

Craig B.

Incorrect...you have it the wrong way around. It is the 351 that has the elevon/ flaperon dual channel capability. The 352 is a dual axis (hence the 2 in the last digit position) but single channel gyro that does not have elevon mixing in it.

I have several of both operating in jets atm.

quist

My Feedback: (198)

I didn't say that the 351 didn't do dual channel, i said it was single axis gyro. I use the 351 in my jet on dual ailerons and it works both servos and it works when flaperons are active. But it will on stabilize on a single axis.