Which gyro for crosswinds
 

I have my first scale Jet, a GJC Mig-15, after flying the ShockJet for two years. Couple of guys say "get a gyro". Do I really need one for this model and If I did decide to get one, I wouldnt know which one to get. Im thinking that if I do get a gyro it would have to be one that will help with extreme crosswind landings. I cant really think of any other reason to have one.
Gyro is foreign to me so any help, recommendations, information, or just plane talk will be appreciated.

Thanks Gyro Gurus
Jimmy

It's up to you. Honestly... there are a lot of guys these days who pass themselves off as being a precision pilot... but turn off their gyro... and they aren't much better than anyone else. I'm an OK pilot. But, I have an eagle tree 3 axis in a 3d model... and it makes me look like a competition pilot. (it does the work for me)


OK... with that said... a Shock doesn't need a gyro. Just fly it, and have fun. (That's what they are for) But, If you buy something that is a little touchy... or has some bad tip tendencies... then put a gyro in it. That will take out the worry, and make it fun to fly. (I'm going to move my eagle tree into my Hot spot. That will help with the bouncy landings)

Then, again...... I bought one of those little UMX Habu 180's. It has the 3 axis system in it... and it will fly GREAT in gusty 15 mph winds. (Better than my big models)


Just my random thoughts... take it for what it's worth.



****EDIT*****

I just realized this is for the MIG,and not your shock. A gyro can help make your flights look more scale, but I don't think that airframe needs one to make it fly well.

Tony venom makes a great 3 axis gyro seen it work at georgia jets and it was great with the winds we had a little pricey but great

Jimmy:

Do you need a gyro for a Mig-15 ? I don't think so. I have seen a couple of videos of the GJC Mig-15 landing in crosswinds without a problem.

Having said that, a Gyro is a nice addition to have if you want your plane to have a smoother flight and of course it does help with strong winds during landing.

I'm currently using the iGyro from Powerbox in several of my planes and I really like it. http://www.powerbox-systems.com/e/po...gyro/start.php

I even install it in some very easy planes to fly and the Gyro makes them look like if I was a professional.... :o

Yesterday I was flying and there was a lot of wind in the club. With the iGyro, landings were a breeze. Just feel more secure.

Look for some videos in youtube and you will see what this Gyro is capable of doing. Now, powerboxes like the Royal SRS come with the Gyro incorporated.

have a look at the cortex extremely easy to install and setup a
nd no it does fly the model just makes it fly nicer!

Thanks Gonzalo my thinking exactly. All the video shows a stable flyer and easy to land, so you have helped me with my reasoning and I will just fly the model and go from there. Thanks for all the input guys.

I can't think of a reason a gyro would help with x-winds per se. It can stabilize the airplane in gusty conditions regardless of wind direction, but there's no extra value for x-winds that I know of.

Yesterday was the day for setting the iGyro in my Tucano. This is a very nice plane to fly but with the iGyro, it looks better.

There was some very strong wind which was changing direction and you will see that with the iGyro, even that the plane moved a little bit, the landing looked very smooth.

The setup menu is super easy to use.

http://youtu.be/OS5OpSJJZPA

Look into the Cortex Gyro by Bavarian Demon it is a 3 Axis Gyro that could be set up very easily or you could tweak it with a lap top. I am using these gyros in my Hawker Hunter and my Viper jet. It will also go on my other projects as well. Not sure if I'm supposed to say this but I also sell them them through Global and Dreamworks should have them as well.

ITony this is the gyro i was talking about

Those who were at First in Flight, KY Jets and SJS were able to see it perform on my Hawker and viper. Crosswind what crosswind.

I have one of these Cortex gyros in my jet as well. Flew it today in pretty good crosswinds and it tracked beautifully. Just recently hooked the gyro to steering and it really tracks the centerline. The initial set up is a breeze, just make a few stick movements and it's all set. Gain can be set accordingly. Rcjets12 hooked me up with mine and helped me set it up too.

Hi Guys,

Just ordered a cortex from dreamworks to give one a go and only noticed after completing the order that the acoustic hush kit is recommended for turbine use. Can anyone give me a quick explanation on what it is, why it's needed, etc. I'm wondering whether it is critical or not and if it is just high-density foam rubber then I might have a go at making my own.

Thanks,
Garrett

only the best http://www.powerbox-systems.com/e/po...gyro/start.php

ISO manufacturing standards certificated too!

That's interesting that they should make that. I have had a MEMS gyro system suffer serious acoustic interference in one of my jets. At 3 particular rpms the noise from the engine was kicking the MEMS gyro and causing it to make massive control inputs. We easily proved it was noise and not airframe vibration by hand holding the gyro system away from the airframe and still it kicked at 3 particular rpms. It is very rare to suffer from it. The same system works fine in other jets and for many people. It must just be that one engine generating just the right noise. I read up about it. MEMS gyros are not solid state, they are tiny mechanical systems so small they can fit on a chip. Being mechanical, a sound at the right frequency can harmonise with the vibration of the MEMS ring and give it a kick. Early MEMS gyros, as fitted to so many consumer devices such as mobile phones, were quite prone to acoustic interference giving false readings and it was well known, so the vibration frequency of the gyros was increased greatly to stop this. However I expect our turbines and their high rpm are capable of generating sound frequencies much higher than those encountered by the normal consumer. An older design of MEMS gyro running at the lower frequency will have more risk of picking up acoustic interference.

If you have an aileron gyro, it will reduce the roll effect , secondary effect of the yaw, very noticeable with swept wings , when you squeeze in some rudder to align the aircraft with the runway just before touchdown.

If you have a rudder gyro, it will damp the tendency of the machine to swing its nose into the crosswind during roll out !

Could anyone advise if the Eagle Tree Guardian Gyro (3 axis) is recommended to use in jets?

Thanks in advance
Regards,

Great explanation HarryC

this unit only has single outputs it also uses trimmer pots to set the gain so. inflight adjustment is not possible.

Thanks HarryC,

Good explanation and I guess I will install it without a hush kit and test through the full rpm range and check whether the surfaces are stable.

Regards,
Garrett

There are several people using the ET gyro in jets. I know that Barry from KingTech is flying with it. (That's why he sells it on his website) And... there are a few vids on youtube of the ET gyro flying in turbines.


That's not true. Well.... not totally.


Yes, there are gain pots on the unit, that can be used to adjust the gains. But, you can also control 2D and 3D modes from the TX. AND... you can set the "Master Gain" using a knob, or other open channel from your Tx. (or turn it off)

Dr. Honda,

Thanks for the explanation. Will have a look on Youtube to get a clearer idea on what to expect.

Regards,

I helped a friend setup a Cortex gyro this week. It seemed to work fine, but I don't like the fact that you can not change the gain for any one axis.

Vincent here on RCU has been using the Eagle Tree gyro in his jets with great success. The only thing I know about this gyro is watching his jets. They are very stable.

I have been using the igyro for the last year in a big P-51, it works great. I like the idea that you can setup all the axis's different. I also like flying heading hold on Ailerons at all times.

I have been using the new Futaba gyro gya431 in my Ultra Flash on ailerons for the last 20 flights. It works great. Having three separate gyros gives you many setup options. And if you fly Futaba TX with a gyro menu it allows great options. When I drop my flaps and slow down I can increase my gain.

Tony the PC software has been released for the Cortex allowing one to set the gains independently for each function.
I use the TX Gyro function to change the gain on the Cortex for landing too!
Works Great!

I will let the owner know. It was not up a couple if weeks ago when we installed it.