It is currently Sun 24. Nov 2024 8:35:04

All times are UTC + 1 hour





Post new topic Reply to topic  [ 3 posts ] 
  Print view Previous topic | Next topic 
Author Message
PostPosted: Sun 27. Sep 2020 0:48:32 
Offline

Joined: Mon 30. Oct 2017 23:47:38
Posts: 162
Hi,

i have a SAB Buddy with a Spirit 2 and Spektrum telemetry. I hit the tail blades on landing, it was enough to chip a 1-2 mm at the end of the blade.

I did change the blade for new ones and now my Output % went from 10-15% to peaks of 30%.... So i think there is more damage then the tail blades...

I then tried the analyser by taking off the main blades and only keeping the tailblades on the grass and turned to the analyser tab and i made sure the tail blade where centered and started the heli to get some readings, i was not sue if the picture would show if Yaw or the 2 other axis so i got 3 png files and i saw one has a high %... it's think it's the Yaw axis.

I should have done the analyser traces when i assembled the heli to get a reference. I would like to confirm the 60%+ for tail blade means theyre is someting else to change ?

The % output is very helpful to detect any issues. I tried flying the heli with the broken tailblades and i clearly heard vibrations and the output % was even higher then 35%.

Here are my 3 graphs.

Thanks


Attachments:
out 3.png
out 3.png [ 53.5 KiB | Viewed 206 times ]
out 2.png
out 2.png [ 74.82 KiB | Viewed 206 times ]
out.png
out.png [ 53.22 KiB | Viewed 206 times ]


Last edited by Pking on Tue 29. Sep 2020 11:28:29, edited 2 times in total.
Top
 Profile  
 
PostPosted: Sun 27. Sep 2020 1:24:01 
Offline

Joined: Mon 30. Oct 2017 23:47:38
Posts: 162
The mistery is getting clearer..

After my post, i tried without the blades and the results are very good, then i tried a different set of blades.. and it was ok as well... I tried again with the first new set and it was ok.

I remeber thighthning the blade to be stiff, when i put blade 2, i put them less tight.

Here are the snapshots with the new set and they seem ok. It's to dark to try a flight so hopefully when i fly the output % should be normal.

Could the too tight tail blades explain what i was seing in the graphs ?
I see the main motor, is that level Ok ?


Attachments:
yaw tail blades 2.png
yaw tail blades 2.png [ 34.97 KiB | Viewed 172 times ]
elevator -tail blades 2.png
elevator -tail blades 2.png [ 36.76 KiB | Viewed 172 times ]
aileron - tail blades 2.png
aileron - tail blades 2.png [ 55.03 KiB | Viewed 172 times ]
Top
 Profile  
 
PostPosted: Tue 29. Sep 2020 11:19:00 
Offline

Joined: Mon 30. Oct 2017 23:47:38
Posts: 162
Case closed, I did a few flights and the output % is now max 15% so my issues are resolved. The analysis FFT feature is really useful.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC + 1 hour


Who is online

Users browsing this forum: No registered users and 28 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  



Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
skymiles_red v1.0.1 designed by Team -Programming forum-سيارات للبيع .