Reason to use momentary switch on bailout

[guyguerra]

I had to use my bailout last weekend. I've used it in real life situations several times successfully. After I flicked the bailout switch I realized that the problem was mechanical, so instead I had to do an auto. It would have been a routine auto except that I forgot to go back and shut off the bailout switch. When I went into throttle hold I couldn't control the cyclic servos as they were being controlled by the bailout command. My heli came straight down into a really bad crash.
I used to have a momentary switch that I installed on my DX8, but when I changed to the DX9 I used the stock switch. If I had a momentary switch the bailout would have stopped as soon as I took my finger off. Theres a lot to remember in the split seconds of a situation like this and it's very easy to forget that you are still in bailout mode. I am changing the switch to a momentary switch this week and STRONGLY recommend to others that it be done.

[ranchhand]

Can't you just move the bind button and use it like most guys have done with DX8?

[rhodesengr]

I have a Dx18 but I think it is the same for DX9. Switch I is the PB and can be assigned to rescue via the mixes posted in the DX18 sticky or the DX9 thread. I know some guys don't like the position of switch I and they exchange positions switch Switch A.

[glen]

I agree, I'm looking at taking the momentry switch off an old futaba radio and putting it into the DX9.
As any switch can be allocated any task finding a big momentary switch in position H in a panic is much easier for me than finding the little bind button.

[guyguerra]

Both ideas are good, and are well documented on other threads. On the DX8 I did swap the trainer swith and replaced the button with a momentary switch, which I really liked. The DX9 is programable to any switch but I can't easily reach the trainer push button so I assigned bailout to switch A. I didn't realize the possibility of leaving the bailout switch on when changing from a bailout situation to an auto situation. I've already changed my A switch to a momentary switch. This is just a cautionary tale for anyone that is using the stock switch A on a DX9 for bailout.

[LoveToFly1]

i think what they are saying is physically move the bind button to place where switch a is and then move switch a to the bind button position. that is what most with the DX9 do.

[neilgreene]

I moved the switches on my Futaba radio for this very reason. Bailout to me should by a flip and old, regain orientation and release.


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[guyguerra]

I've rethought the momentary switch idea and kind of like the idea of using the push button from the trainer switch. I'm going to pull mine back apart and do that. I like the idea of the switch being a total different action than the throttle hold switch. Thanks for the input. Sometimes we get caught up in a certain way of thinking and miss a different approach.

[Pitch-Itch]

Originally Posted by guyguerra

I've rethought the momentary switch idea and kind of like the idea of using the push button from the trainer switch. I'm going to pull mine back apart and do that. I like the idea of the switch being a total different action than the throttle hold switch. Thanks for the input. Sometimes we get caught up in a certain way of thinking and miss a different approach.

It is extremely easy to swap the two switches. No need to solder in a new push button switch.

[KSHeli]

One other thing I've thought about doing after I had a sweaty finger slip off of the relocated PB on my DX8. I would glue a piece of sandpaper to the top of th PB for a little non slip piece of mind. Maybe a hole punched size piece.

[guyguerra]

I changed my radio to use the push button switch as I like the idea of a different type of motion than the Throttle Hold switch. I was so used to hitting Throttle Hold from my early days of learning that I have mistakenly hit both switches at the same time in a panic using muscle memory before.
I am going to bench check the bind switch now to make sure nothing happens if the bind switch is accidentally flipped up. I doubt anything will happen since theres no bind plug in the receiver but want to be sure. Has anyone tested that?

[Pitch-Itch]

Originally Posted by guyguerra

I changed my radio to use the push button switch as I like the idea of a different type of motion than the Throttle Hold switch. I was so used to hitting Throttle Hold from my early days of learning that I have mistakenly hit both switches at the same time in a panic using muscle memory before.
I am going to bench check the bind switch now to make sure nothing happens if the bind switch is accidentally flipped up. I doubt anything will happen since theres no bind plug in the receiver but want to be sure. Has anyone tested that?

It's totally fine. You can hit the bind switch whenever you want with no issues.

I hit the switch before every flight just to check rescue. IE: I hit the switch to see the pitch go to max, just to check functionality.

[guyguerra]

Thanks for the input. The switch that I'm not sure of yet is the toggle switch that was moved to the trainer / bind location. Now that the trainer switch is not a momentary switch there is a remote possibility that it could be in the up position telling the raidio to bind. I want to make sure that if this ever happens it won't interupt signal during flight. I might just throw the momentary switch that I bought into the bind switch location and cut off some of the switch lever length just as a safety precaution.
This might be over kill but I've had a few tough learning curves with the 3SX and don't want this to be another. I'll bench check it today and see what happens, but even if it checks out ok I'll always be wondering if a toggle switch on the bind operation will cause me trouble someday.