Logo 500SE with Vbar express [Archive]

MaSt0RaS

12-09-2010, 05:22 PM

Hello guys i am new to Vbar 5 and logos world..

I maiden a Logo 500SE with 8s and 600mm blades..!

I liked it but when i started 3d i had a lot of wobble..

My main rotor gyro gain is 90 as the vbar program say for the logo..

What do you think isnt it high??

What main rotor gyro gain you have??

Also where do i change the pirorate on the express?? on the ATV of the rudder channel??

i Have some more questions i will post them later..

Also what about the RC SCREWZ?? are these ok for the Logos?

Thank you!

MaSt0RaS

12-10-2010, 04:35 AM

51 views. No one can answer?!

maarset

12-10-2010, 09:59 AM

You might have better luck in the V-BAR section.

LogoFreak

12-10-2010, 10:26 AM

I would say check for vibrations. If normal flying isn't giving you any problems but starts to act erratically when doing 3D I'd say it's vibrations. What's the highest vibration recorded? Check that in the vbar software.

MaSt0RaS

12-10-2010, 10:28 AM

I would say check for vibrations. If normal flying isn't giving you any problems but starts to act erratically when doing 3D I'd say it's vibrations. What's the highest vibration recorded? Check that in the vbar software.

i can check this with the Vbar express?!

LogoFreak

12-10-2010, 10:37 AM

i can check this with the Vbar express?!

It will tell you what was the max vibration recorded. It's at the bottom right hand corner of the main screen as you plug in your vbar, it's displayed as a vertical bar with the max vib number right above it.

LogoFreak

12-10-2010, 10:40 AM

Can you post a picture of your mini v mounted? Maybe a screenshot of the vbar main screen as well.

Andy from Sandy

12-10-2010, 11:21 AM

It will tell you what was the max vibration recorded. It's at the bottom right hand corner of the main screen as you plug in your vbar, it's displayed as a vertical bar with the max vib number right above it.

Edited.

MaSt0RaS

12-10-2010, 11:35 AM

guys these are my Vibs..

I did update to pro..

In normal mode 50% rpm i am ok..

http://i582.photobucket.com/albums/ss264/MaSt0RaS/Screenshot2010-12-10at192425.png

http://i582.photobucket.com/albums/ss264/MaSt0RaS/Screenshot2010-12-10at192437.png

When i put idle 1 with 75% throttle i hear a weird sound from tail and the vibs are going to max...!

PS now that i went fro express to PRO do i have to resetup??

Thank you!!

LogoFreak

12-10-2010, 11:52 AM

I would start from scratch. If your vibes go to high levels then you found the reason why it was acting weird. Check that the tail is working smooth, belt tension, etc. I would recommend you start testing for vibes with just motor running, then add main shaft, then add tail, then head, etc... That way you'll know which component is giving you the problem.

MaSt0RaS

12-10-2010, 12:29 PM

I would start from scratch. If your vibes go to high levels then you found the reason why it was acting weird. Check that the tail is working smooth, belt tension, etc. I would recommend you start testing for vibes with just motor running, then add main shaft, then add tail, then head, etc... That way you'll know which component is giving you the problem.

can you tell me what vibes are high level vibe?S???!

LogoFreak

12-10-2010, 01:06 PM

I'm not 100% sure, but I would say over 400-500

Flying Dutchy

12-10-2010, 01:50 PM

You are well below the yellow line. max 350 is perfect so no vibes problem with this one! I had it mounted on a Protos 500 and there I had 4000! :arggg:
After making the necessary changes on the tail it was down to 328...

What is your main rotor RPM on idle1 ?? Which tail and main blades do you use?

LogoFreak

12-10-2010, 01:55 PM

You are well below the yellow line. max 350 is perfect so no vibes problem with this one! I had it mounted on a Protos 500 and there I had 4000! :arggg:
After making the necessary changes on the tail it was down to 328...

What is your main rotor RPM? Which tail and main blades?

The 2 screenshots he posted are at 50% throttle, he says they max out when in idle up 1 at 75% throttle. He hasn't posted a pic of that yet.

Flying Dutchy

12-10-2010, 01:57 PM

Ah! Ok then we should wait till he posts that... My 500SE is still running on 6s with an 4025-890 and 17T. I use a full size vbar on it so don't know how the blue mini would behave on it.

LogoFreak

12-10-2010, 02:03 PM

Ah! Ok then we should wait till he posts that... My 500SE is still running on 6s with an 4025-890 and 17T. I use a full size vbar on it so don't know how the blue mini would behave on it.

My 500SE on 6s was around 250...

MaSt0RaS

12-10-2010, 02:07 PM

ok guys i didnt take a pic because i am alone and i had to keep the heli..

The vibs was max 300-350.. i think thats ok...!

The problem was that the owner hadnt glue the bearings of the tail on the tail case....!!!

i will do a flight tommorow and i will right back..

But i am bored to resetup the model because i upgraded from express to pro..

IS this so important??? :(:(:(

MaSt0RaS

12-10-2010, 02:11 PM

Something very important...

Where do you put the Tail Case Belt Tensioner on the first hole tha the bearing is not touching the belt but is very near(as the manual says ) or on the second hole that the beraing is touching the belt??

LogoFreak

12-10-2010, 02:13 PM

ok guys i didnt take a pic because i am alone and i had to keep the heli..

The vibs was max 300-350.. i think thats ok...!

The problem was that the owner hadnt glue the bearings of the tail on the tail case....!!!

i will do a flight tommorow and i will right back..

But i am bored to resetup the model because i upgraded from express to pro..

IS this so important??? :(:(:(

I had a problem with servos acting strange when I went from express to pro and I fixed it by going thru setup again, mainly the rx setup. It shouldn't take you that long to do and you would have peace of mind :-)

LogoFreak

12-10-2010, 02:18 PM

Something very important...

Where do you put the Tail Case Belt Tensioner on the first hole tha the bearing is not touching the belt but is very near(as the manual says ) or on the second hole that the beraing is touching the belt??

I have mine where the bearing pushes down on the belt acting like a tensioner. Make sure not to over-tighten the bolt that goes thru that tensioner bearing, otherwise you might ever so slightly warp the cf plates and cause the tail shaft bearing come out of alignment... You can feel this with the tail case fully assembled on the tail boom but without the belt, if it's too tight the tail shaft will not spin freely...

MaSt0RaS

12-11-2010, 08:48 AM

guys with align tailblades 95mm and tha gyro gain of the tail on 69 the heli is flying great...

In very hard manuever i have some vibs but its the gyro gain.. somewhere 65-67 is perfect...
What do you think is it ok to fly to these gain amounts??!

MaSt0RaS

12-11-2010, 02:44 PM

And something else guys ..

If i want to change tail gyro gain from TX on the express i was changing the ATVs from gear channel..

On pro version i have to go to banks and then set the last option..But do i have to have 7channel reciever with Aux and i change via gyro menu.?

Or i change via geear channel as it is??!

thank you!