It is currently Sat 21. Sep 2024 4:15:50

All times are UTC + 1 hour





Post new topic Reply to topic  [ 35 posts ]  Go to page Previous  1, 2, 3, 4
  Print view Previous topic | Next topic 
Author Message
PostPosted: Wed 18. Sep 2024 14:31:41 
Offline

Joined: Wed 10. May 2023 9:36:53
Posts: 36
Location: The Netherlands
Driveline651 wrote:
[quote=“senaka”]
200 on the y axis, yikes ! you must be able to hear that vibration not only feel it :o . I would get that sorted soon as it will wear out moving parts.


The helicopter exhibits no signs of vibration, seems to fly very smoothly. Just like the 550x that has similar numbers.
I would be interested to hear some feedback of what your helicopters numbers are for comparison. I’m still waiting to get a response from ZEX as to what he thinks.


Mine ranges from 30-45 on all.


Top
 Profile  
 
PostPosted: Wed 18. Sep 2024 14:34:49 
Offline

Joined: Sat 13. Jan 2024 18:40:38
Posts: 34
Zex,
I have attached pictures from in flight hover of the tb40 .
One is the logger and shows a relatively low vibration around 29% in magnitude

The other is the Y axis of the in flight spectrum analyzer and it shows a very high vibration level of 277

Both of these pictures are from the same flight . Stable hover in idle 2

Please advise


Attachments:
File comment: Tb40 in flight idle 2
Y axis spectrum analyzer

IMG_3466.jpeg
IMG_3466.jpeg [ 937.29 KiB | Viewed 62 times ]
File comment: TB40 in flight hover idle2
IMG_3467.jpeg
IMG_3467.jpeg [ 2.04 MiB | Viewed 62 times ]
Top
 Profile  
 
PostPosted: Wed 18. Sep 2024 20:37:10 
Offline
Site Admin

Joined: Mon 29. Apr 2013 16:06:44
Posts: 12385
Thank you.
I can say only that I highly do not recommend to fly with this model now.
The vibration level is insane. Basically the level is so high that with the most other gyros it will be not possible to even lift off (even with half the level).
There are strong resonant vibrations that must be resolved.
The problem is tail mechanics.

_________________
Spirit System developer


Top
 Profile  
 
PostPosted: Thu 19. Sep 2024 1:11:24 
Offline

Joined: Sat 13. Jan 2024 18:40:38
Posts: 34
ZeXx86 wrote:
Thank you.
I can say only that I highly do not recommend to fly with this model now.
The vibration level is insane. Basically the level is so high that with the most other gyros it will be not possible to even lift off (even with half the level).
There are strong resonant vibrations that must be resolved.
The problem is tail mechanics.


Zex,
Thank you ,
Can you help me understand how it’s only 29% vibration on the logger , but so high on the Y axis at the same time ?
Also on the bench the vibration is less than half , around 110 on the y axis .

Also , could you share what a normal level would be both on the Y axis and as a percentage on the data logger ?

In the mean time I will continue to dig and see if I have missed anything.
Thanks!


Top
 Profile  
 
PostPosted: Thu 19. Sep 2024 15:20:32 
Offline

Joined: Sat 13. Jan 2024 18:40:38
Posts: 34
For comparison, here are inflight graphs of my Align 550X with spirit GT . It flys very smoothly, nothing bent , everything spins like butter , never crashed .
Was on beastx until this spring . Never any issue with either FBL , strictly for comparison.
The numbers again look good on the logger but High on the Y axis .
Not say things couldn’t be made better , but I also don’t want to go down a rabbit hole with the TB 40 , end up replacing everything with new even though it all checks out fine , and end up with the same result .
Does anybody else have similar graphs of their good flying helicopter to share for comparison?


Attachments:
File comment: Align 550x idle 2 stable mover for comparison
IMG_3470.jpeg
IMG_3470.jpeg [ 1.4 MiB | Viewed 32 times ]
File comment: Align 550x idle 2 , stable hover for comparison 29%
IMG_3471.jpeg
IMG_3471.jpeg [ 1.97 MiB | Viewed 32 times ]
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 35 posts ]  Go to page Previous  1, 2, 3, 4

All times are UTC + 1 hour


Who is online

Users browsing this forum: No registered users and 12 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 .