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-   -   Demon Cortex Gyro question (https://www.rcuniverse.com/forum/rc-jets-120/11603586-demon-cortex-gyro-question.html)

KFX450 04-12-2015 05:32 AM

Figured. Thanks a million.

BarracudaHockey 04-13-2015 04:40 AM

The good news, if you're flying Spektrum and have the channel on your radio, the 9020 is actually a 10 channel receiver

mavrick 04-19-2015 01:50 PM

Hi Guys.
This question may have been asked I am putting Gyros in all my jets I have just finished switching them over to my new system (Jeti ) the last one is my Raptor, can I do this with tailerons and the question raised was with the bit of free travel on the tailerons will this affect the gyro and possibly start flutter.
Cheers
Mav

Bob_B 04-19-2015 03:16 PM

The Cortex learns your setup during the teaching process. Free play is a bad idea on any model and should be removed.

mavrick 04-19-2015 05:08 PM

Bob I have not seen a taileron setup yet that has no movement mine has about 3 mm and for what I have seen that's pretty good.
Cheers
Mav

gunradd 04-19-2015 05:18 PM

Mav I have my cortex on my F22 on tailerons and the ailerons works perfect very happy with this set up.

mavrick 04-19-2015 05:25 PM

Thanks Gun how much movement have you got on your tailerons as I just said to Bob I have about 3mm and there is no way I can get rid of it I have tried Man have I tried, all the flying stabs that I have seen have a fair amount of movement some I would Sh##t myself if it was my aircraft LOL

hoser 04-19-2015 06:30 PM

hey bob does it learn elevons without having to use a software set up

Bob_B 04-19-2015 06:33 PM

Yes the Cortex learns your control setup during the programming phase!

Reever45 04-24-2015 06:58 AM

Does anybody know if using sbus, if you can remap the channels numbers higher than the default of 1-8 ( like 9 or 10 or whatever)?


Thanks

gooseF22 04-30-2015 05:46 PM


Originally Posted by jws_aces (Post 11873371)
I have 2 servos on the elevator. I just finished setting it up. I am going to use the knob to adjust the gain for the first flights. I have the travel set to off then to normal mode. I adjusted the travel so the hold side will not work. I lower it to 0 on that side of the travel for the channel I have the gain plugged into.

Any suggestions on first flights?

That is exactly what we recommend doing.. use the knob.. we recommend putting using your dual rate switch to lower the expo..

so when you takeoff the first time, everything is as you normally fly.. then dial up 30% expo to begin with.. then switch to the rate with less expo, about half.. it should feel similar, but be stable as a rock..

we rarely end up over 60% overall because of the risk of overlain at high speed.. anyway when you find the locked in feel value, then you can lock it into the flap switch..

So for instance if the value is 35% at cruise, then I lock in 40% for takeoff flap, and 45% for landing flap.. that works well for me to keep the feel consistent.

Exceptions are delta wing aircraft.. they require a lot more rudder dampening.. so we go into the software and lower the elevator/aileron values, and then dial up the gain 60-99% or so..

Bob_B 05-01-2015 02:43 AM

[QUOTE=Reever45;12027993]Does anybody know if using sbus, if you can remap the channels numbers higher than the default of 1-8 ( like 9 or 10 or whatever)?


Thanks[/QUOTe

yes on certain models I know the 6208 does not work.

Mi-25 05-01-2015 03:31 AM

Not totally correct - if you use the PC software you can assign different gains to each axis.

gooseF22 05-01-2015 03:43 PM


Originally Posted by Mi-25 (Post 12031843)
Not totally correct - if you use the PC software you can assign different gains to each axis.

In the software you are assigning the relative bias gains.. the master gain still controls overall gain.. the software controls relative gain from 0-20.. be careful with relative gain.. a little change goes a long way..

Mi-25 05-01-2015 05:01 PM

Hi Goose - agree....100% correct...adjusting master gain changes overall gain irrespective of whats set as relative channel gain...so the guys need to be a little careful.

sskianpour 05-07-2015 12:01 PM

..

uLTRASPORT1000 05-13-2015 10:15 AM

I have been using the Cortex on several of my planes both turbine and prop and have no issues. I was just wondering if anybody has done a direct comparison of the Cortex vs I-gyro 3e?
Thanks,
Sam

gunradd 05-13-2015 11:16 AM


Originally Posted by uLTRASPORT1000 (Post 12037948)
I have been using the Cortex on several of my planes both turbine and prop and have no issues. I was just wondering if anybody has done a direct comparison of the Cortex vs I-gyro 3e?
Thanks,
Sam

Allot of my friends using the 3E love it and prefer it. I prefer the cortex. I tried the 3E for 8 flights and just did not at all like it. The cortex on the same day was fine from the first flight. Not sure if its the plane type or maybe its how I fly not sure. Its more of a preference thing I guess. I also like how you can do ailerons and tailerons with the cortex at once right out of the box just with the learning procedure.

They both have good reputations so its personal preference.

hoser 05-13-2015 06:22 PM

it is personal choice... I have a 3E on my BVM 86 set up by Ali and a Cortex on my BVM T-33 set up by the rep and VERY happy with both and they both do the trick VERY well. I also can confirm when I spotted for Gun at FL jets and I saw him use both back to back I clearly saw that the Cortex on his 22 had better results with a straight drop in install on his airframe.

uLTRASPORT1000 05-13-2015 06:36 PM

Thanks for the info.
Sam

George 06-29-2015 07:27 AM

Okay, I've searched for references on the "alternate" mounting options for the Cortex, but not having much luck finding anything. Anyways, we installed the gyro on the vertical plane and there are two options for this in the software (L Vertical & R Vertical). The 'question'...which is which?:confused:

If you were sitting in the plane facing forward, the gyro is mounted with its base on the right side and the sockets facing left & forward. I naturally assumed this was R Vertical...yes/no?

I did switch it to L Vertical very briefly to do a cursory check, and didn't see any change in direction, but I may not have thoroughly vetted that set-up, so know I'm questioning it altogether. We have 'semi' successfully flown the plane with the R Vertical setting, but are still needing to tweak things and was questioning the mounting setting again. Does anyone know for certain about the vertical mounting?

Bob_B 06-29-2015 08:03 AM

If you have it with "labeling" facing left choose left and Visa Versa, reason being it came from the helis gyro which would be mounted on the outside of the frame work.

Bob_B 06-29-2015 08:05 AM

George will you be at JOK? If so I would be happy to show you the Gyro menu in depth.

George 06-29-2015 08:12 AM


Originally Posted by Bob_B (Post 12062967)
If you have it with "labeling" facing left choose left and Visa Versa, reason being it came from the helis gyro which would be mounted on the outside of the frame work.

Bob,

That makes perfect sense...(now!);)

Yes, I'll be there on the 7th, but not sure if the plane will be or not.

George 06-29-2015 08:27 AM


Originally Posted by Bob_B (Post 12062967)
If you have it with "labeling" facing left choose left and Visa Versa, reason being it came from the helis gyro which would be mounted on the outside of the frame work.

Bob,

Just for clarification "labeling" facing...as you view from the cockpit facing forward, correct?


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