Ok long story short my bought a Cortex for his Skymaster Viper, used it about a year with great results. One day at our feild his viper twichced really hard to the right 2 times and while trying to bring it in for a landing it did it again and caused it to crash as it was at low speed 10 feet up.

He figured it was a issue with his Spectrum set up and moved on, sold me the gyro.

As I was uncertain I put it in a cheap GP Biplane and put 10 flights with no issues so I moved it to my Carf Eurosport, I have had around 10 amazing flights.

But last weekend it started to twichce real hard to the right, I freaked out turned off the gyro and it still did it, buy the time of the first twichced to I got to the ground in the time it took me to fly my base leg and land it twichced around 10 times.

I was freaking out but figured it was jut low batteries. Today I got around to charging up the 2 2200 6.6 life packs and to my surprise I only put 620mah each to full charge. Which tells me they were not very low. Right now I'm dischargeing both backs to see there capacity.

I'm thinking I should send in this cortex for testing but to who?

Is there anything else you would check on your jet?

I'm useing 2 swiches with a life on each into the AR9010 spectrum reciver.

I'm not talking bad about Cortex as I have 1 other in my F16 with amazing results. I love this gyro but I can't afford to lose my Eurosport.

So who should I contact to send this to? Is there even a service I can send it to?

Thanks

So is there a known compatibility problem between Spektrum and Cortex? I am installing one this weekend on a Spektrum receiver and would like to know.

No compatibility issues with the Cortex and any radio system.

www.demonaero.com

That's what scares me you can never really turn these things "off" as far as I can tell.

By "off" i mean the servo signals pass through the gyro like they are on a piece of wire.

I'm not try to scare anyone I'm looking for a phone number of who to call and possibly some things I should duble check before my next flight

And I got 4 other buddies useing Cortex with spectrum with no issues

ok thanks.

take it out and fly it again only way to prove it is the gyro

The Tech Rep for Demon is Danny. You can reach him at 407-687-3126. I am heading down the Cortex Gyro road myself and have spoke with him a couple of times. He answers his phone !!!

Curious to know what he says...

Bill

Yep, that's the one thing that nobody really thinks about with things like this - you are "asking" the software inside the gyro to please give you back direct control of your servos, and in case of a bug, or maybe a hardware failure, the answer maybe "no!"

You could use something like this to bypass the gyro as a last resort:

https://www.pololu.com/product/2806

http://www.robotshop.com/en/cytron-8...ltiplexer.html

https://acroname.com/products/RXMUX-...VO-MULTIPLEXER


Bob

If it is an early version Cortex you should have the foam shroud over it. If its newer, this is not required.

Hi mikes68charger
Please contact me and we will take care of you.

Danny
407-687-3126
[email protected]