Goblin Fireball

In case you do not know something or you are not sure, here is the right place for your question.
lostmyheli
Posts: 100
Joined: Mon 10. Oct 2016 0:45:02

There is no file in the Model Presets for the Goblin Fireball.
Should I use the default or maybe the Goblin 380 ?
Thanks
ZeXx86
Site Admin
Posts: 12836
Joined: Mon 29. Apr 2013 16:06:44
Contact:

Yes, you can.
There is nearly no difference in the configuration.

But we will add the preset in the upcoming version :)
Spirit System developer
gerry
Posts: 234
Joined: Fri 26. Aug 2016 6:51:10
Location: Austria

The Hobby Wing controller in the Fireball has an RPM output.Can I infect the Spirit or comes the speed of the Uni cable?
How can I adjust the 24 poles of the motor?
LG Gernot
Greetings Gernot
lostmyheli
Posts: 100
Joined: Mon 10. Oct 2016 0:45:02

Brand new Fireball with Tail Wag can't get rid of it.
Tail gain down to 30% can I go any lower ? Any high I get fast wag in Idle Up 3
Setup files attached. Will do vibration logs later today.
Any suggestions ?
Thanks
Attachments
fballb2.4ds
(255 Bytes) Downloaded 172 times
fballb1.4ds
(255 Bytes) Downloaded 156 times
fballb0.4ds
(255 Bytes) Downloaded 151 times
ZeXx86
Site Admin
Posts: 12836
Joined: Mon 29. Apr 2013 16:06:44
Contact:

What tail servo do you have?

Probably you will need to set Rudder Delay (decrease). Reducing Pirouette Consistency to 150 can improve it too.

It is also usual that new goblin kits needs "smoothening" of the tail mechanics since in certain angles it is not moving freely. Only then tail mechanics will perform well. Very often it is sorted by itself according the pilots after couple of flights.

Very important is that each ball joint is moving with absolutely no friction and there is no point that is causing additional slow down.

Tail gain should be around at least 50%, but it is also very dependent on the servo.
Spirit System developer
lostmyheli
Posts: 100
Joined: Mon 10. Oct 2016 0:45:02

Using the stock DS12T servo.
I'll make those changes along with striping down the tail and check it smoothness.
Report back tomorrow if it improves.
ZeXx86
Site Admin
Posts: 12836
Joined: Mon 29. Apr 2013 16:06:44
Contact:

For this servo I recommend to set Rudder Delay to 0.
Spirit System developer
lostmyheli
Posts: 100
Joined: Mon 10. Oct 2016 0:45:02

Piro consistency set to 150, Rudder delay set to 0.
Tore down the tail assembly polished and oiled the tail shaft.
Tail gain at 50% seems better at lower head speed but at higher head speed
still getting the fast wag. Reduce the gain to get rid of fast wag but then have slow wag
at lower head speed. I don't see any vibration issues, logs attached.
Have any other suggestions ?
Attachments
fbz.png
fby.png
fbx.png
Trek nut
Posts: 47
Joined: Sun 02. Apr 2017 17:49:47

just sorted my out , check the tail boom and frame make sure they are tight , and thurst bearing on tail with the smaller diameter out . same problem with my . it wasn t the spirit . good luck
Butscher
Posts: 18
Joined: Sat 04. Feb 2017 20:17:19

I have the same problem with commuting fast tail.
The tail is smooth running.
Servos are standard sab.
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