Bailout on nitro

[Nick_C]

Hi,i cannot seem to get the brain bailout to work on trex 700n,it is mounted on pu gel pad,when i hit auto level,the heli just veers off to right at 45 degrees,ive tried all sorts but to no avail,anyone any ideas please.

[bigpops]

Bailout/self level not working is usually vibration related. The accelerometer doesn't have the same resilience to vibes as the gyro does.

Not much you can do about it on a nitro except perhaps move the Brain to another position and/or change the mounting setup. Maybe add a metal plate / change the tape.

[Nitro Head]

I had a very similar problem with the brain on 600N, after a lot of experimenting we found that strapping the brain down into the PU gel with a cable tie covered with fuel tubing seemed to give the least vibration and the bailout then worked correctly.

[Nitro Head]

I got the idea from here, there are some pictures showing what I mean.

Another Self Level story (solution within) - HeliFreak

[Nick_C]

I had a very similar problem with the brain on 600N, after a lot of experimenting we found that strapping the brain down into the PU gel with a cable tie covered with fuel tubing seemed to give the least vibration and the bailout then worked correctly.

Thanks for that info but have already tried that with no success!

[Nick_C]

I am not sure how hard to crank down the tie wrap?

[Nitro Head]

Does it always go the same way when you hit the bailout? I found that vibration was making the bailout random so it would go in a different direction and amount each time.

i assume if you hit bailout when on the bench (engine off) the swash goes totally level?

Also have you got the cable tie really tight so it is compressing the PU gel?

[Nick_C]

Does it always go the same way when you hit the bailout? I found that vibration was making the bailout random so it would go in a different direction and amount each time.

i assume if you hit bailout when on the bench (engine off) the swash goes totally level?

Also have you got the cable tie really tight so it is compressing the PU gel?

I go up high with heli tail in and hit SL,heli always tips violently right,on the bench the swash stays level in SL with engine off. I should try taking all blades off and running spooled up on bench then hit SL,and try different tie down strengths,it is pulled down half tight at mo.

[Nitro Head]

Assuming you have not mixed in some collective with your bailout switch it would be a good idea to see what the swash does when you engage self level while engine is idling on the ground. You could try this before and after flight to see if there is any difference?