3G link arriving soon - tips for 550 3G

[1004ron]

My 3G link connector should arrive soon.

Any tips on setup using the link - I'm still a newbie flier that needs a docile setup.

My 550 is flying well, but the usual tail wag and twitch is there - I've just selected the tail gyro to "small Heli" but still need to try it out.

Any tips most welcome.

[Philluoma]

Small heli delay is almost a must...

Move the servo horn ball link as close to center as you can...

Update the 3G properly and separately...

Look into yhe sensor mod if you haven't already...

Follow the notes in the program for the bell/hiller rates for a beginner bird...

You'll be fine, make minor adjustments at a time, and enjoy!

[Coolice]

Hey.

I'm runing my 550E on large model delay setting with some delay added in, then to help remove the slight tail hunting in the hover I've reduced my rudder lock gain value.

Servo horn as above, moved inwards from the book recommended position thus allowing a higher gain to be run before any tail wag takes place. To do so nicely on my own model I mounted the tail servo on the underside of the tail servo mount, this lowers the servo height allowing me to fit the steel control ball on top of the servo horn in any hole position I like without any binding on the servo casing.

I've just recently done the mod much talked about sensor mod, while I've not noticed a major improvement over how it was before with any ability to run much higher gain values, it's certainly worth doing. More I think to help add mass to the sensor.
I would suggest removing the moulded tabs in the top of the sensor case as these I am sure act like wood peckers on the SMM gyro sensors in flight.
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[1004ron]

Thanks for the tips - will report back once I get a chance to test.

BTW, I didn't have silicone on hand so used "Tac" poster adhesive putty for the sensor MOD.

[1004ron]

Originally Posted by Philluoma

Small heli delay is almost a must...

Move the servo horn ball link as close to center as you can...

Update the 3G properly and separately...

Look into yhe sensor mod if you haven't already...

Follow the notes in the program for the bell/hiller rates for a beginner bird...

You'll be fine, make minor adjustments at a time, and enjoy!

Been very busy at work, so today was the first chance to do a test flight.

I did as suggested with the bell/hiller and it's very steady and nice and docile for this beginner.

Instead of silicone, I used that tacky putty used for sticking posters on walls - it should have the same effect of eliminating the vibration internal to the sensor assembly.

I also changed from "Large Heli" to "Small Heli" for the tail gyro, but it now has more severe tail wag even with the gain set at 68 on my DX7.
I'm getting a tail push rod soon, and will then move the ball on the servo arm inwards and mount the servo on the underside of my new bling alu mounting bracket.

Any other suggestions with the tail wag?

Another odd thing that I noticed, is if I put the heli down after a couple of minutes, and then spool up it is as if the ESC does a very, very soft start and doesn't seem to go to full throttle after this - any ideas on what's happening with that?

[Philluoma]

I've experienced the same slower headspeed with my 500 and stock 60amp esc... If I spool up in normal mode, then lift off, If I raise and lower the throttle the heli will not reach full speed again... I have to land it, spool down, then spool up again and flip to stunt 1 or 2 before it reaches full speed... Then it doesn't happen any more... Not sure if this is a align esc issue... But I just never fly in normal mode anymore to prevent it.

[Coolice]

Hey.

After I did the silicon mod to my 550E I found I couldn't increase the http gain anymore than the percentage I was already running and at 67 your gain is quite high, I'm running 44% from memory and that's with reducing the tail gain via the PC a bit to.

With the wag definitly reduce the rudder lock gain down from the stock 70 to 50 as this helped on my model.

With the ESC I'm not sure, on power down the slow spool up will work again on throttle up but I'd not experienced what you're seeing. Are your throttle end points set correctly?
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