Helicommand HC3-SX on Spectrum

[Barry Tilson]

Third flight. Don't think the gain adjusters are working. Maybe the head gain. When you punch out the tail starts to wash out. Think I'm going to recheck
The tail rigging maybe need to get the 5 degrees neutral set up better.

[flyalan]

Barry
With the radio on and heli live what gain numbers are you showing on the diagnose page? Tail gain and head gyro channel? Is the tail gain indicator to the right in the green heading hold range?

Call if you need help. Just watching it rain and working on installing a HC3-SX red devil in the E7 and requiring for telemetry.

Alan


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[Barry Tilson]

Need to check it hooked up to the software. Life is busy so haven't been able to check it yet. will report soon.

[Barry Tilson]

Fourth flight! Just flew it this time instead of fussing with the gains. It was great, handled awesome!

[Barry Tilson]

Gain adjusters weren't working. Went though the Helicommand setup again now you can hear the servos changing in there noise levels. Not sure what changed? So the DX8 gains are talking to the HC3-SX. Will try another flight and see how it goes.

Sould you see the head and tail gain sliders change in the software when you click the read button? They seem to be at 50 for both? Even after moving them in the radio.

[flyalan]

I had a feeling your gains weren't being read from the radio!

You may see the gain sliders  change when you hit read.  Not a problem as they don't mean anything if the radio is controlling the gains.   The only numbers that matter for now are the ones on the diagnose page.  You have not set up captain rescue yet correct? When you set that up you WILL need to lock in the head gain number with the slider. 

Alan

[Barry Tilson]

Ok so the gains don't auto adjust the sliders in the software. I need to take what is shown in the diagnose page and input them to the tail and head gyro page. Thought it was real time. I will try another flight soon.

[flyalan]

Barry,

The sliders only mean anything if you are not using the radio to adjust the gains (Channels 5 and 7).

When you turn on captain rescue (bailout) you must give up channel 7 (head gain) and use it to activate the bailout.  That is when you need to lock your head gain number in with the slider on the Rigid page.
There is no need to set the tail gyro gain default unless you start using channel 5 for real time tuning.  THis can be left on the radio.

Alan

[Barry Tilson]

Ok two more flights and the gains are working now. Very locked in.
Going to try some more as I didn't get the flutter in the head or be tail yet.
Flies great!!! Almost like slow motion.

[flyalan]

Awesome!

Alan


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[Barry Tilson]

Here is a video of the E7 HC3-SX on the DX8 gain adjusting. Got the head to wobble around 100% backed it down to 85%. The tail never fluttered even at 100% tried fwd flight and seem to hold just fine. Have it set around 80% now.
I will try the tail again.
http://www.youtube.com/watch?v=bH8e-3ULt4Q&sns=em

[Chris Sexton]

Pretty smooth flight. I never seen the head bobble you were talking about, but video can he hard to see those little movements. I am sure it was there if you seen it.

One thing I like to do to check tail gain before calling it perfect is to try some fast backward flight or even a tail slide if you think you can hold it should the tail blow out.  Gain gets more important as you load the tail more.

Another note about bail out. Yes, the HCSX WILL correct orientation and attitude, but it cannot stop forward movement.  Just be ready for that. If you hit bail out while travelling forward or aft, it will continue to travel that direction, just on a level plain rather than at the ground. 

[Barry Tilson]

Yeh it is hard to see. You can hear it and it started losing altitude. I'm going to leave the tail gain slider in place as I'm not ready for fast tail first flight. I will set up the bail out and continue with the set up and tuning.

Thanks for the advice on the direction of the bailout. Think I'm going to move my trainer button to better location to use with the bail out.

Love the way it flies!

[Barry Tilson]

Ok i have set the manual head gain to 80% and left my tail gain setting in place for further adjustments as I'm not ready for fast backwards flight yet.

Setting up the HC3-SX bail out. 
I changed the head gain channel from my radio adjuster know to my bind switch for the bail out. Adjusted the travels of the switch to be natural at 0 and when pressed it goes to -100%. Does that sound correct for the rigging?

[flyalan]

That should work  Verify this by going to the diagnose page ot the software. You should see both the "Horiz. Stab" and "C. Pitch Action" lights go green.

Alan