I am having problems setting up flaps using channels 7&8, I can't seem to get flaps to work properly. I watch the video on YouTube on setting up flaps {
} and it all looks so EZ to do. I even set up the 3 curves he recommended in the video, but I can't seem to get flaps to work properly. If anyone has any suggestions, please let me know. Also I am having issues with using setting up Rcexl opto gas engine kill switch. I was going to use channel 9 on my receiver but in the radio is using channel 9 for the for gain for the stabilizer for the gyro I am unsure what I am un sue what I should do to use channel 9 for kill switch I was going to use button J in the back of the radio as a kill switch for the gar engine. Any help would be appreciated. As you can tell I am a new user with the X20s radio. Thank You
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Flaps and stabilizer gyro SR10 access pro receiver
- Thread starter J Perk
- Start date
First, I think the dudes curve is bogus, why is he only using half the servo throw? I would go with a 3 pt. curve, with the two endpoints being -100 & +100, and the midpoint number being whatever you would like for your partial flap value.
If you want help, please share your model file, as I have found that a lot of time can be wasted going back and forth trying to get to the problem. Sharing the file, gives me or someone else the "truth"
If you want help, please share your model file, as I have found that a lot of time can be wasted going back and forth trying to get to the problem. Sharing the file, gives me or someone else the "truth"
I think you are missing my point. The guy in the video already uses a 3 point curve, I just think he has the wrong curve values. I have posted a comment/question on his video and we will see what he says. But still, just doing that won't solve your problem. If you are not getting output on channels 7&8 you have something else wrong, and changing the curve will not fix that.
It is a little odd that he defines the switch positions in that way, but that curve does make sense if you have set up your flaps with no mechanical offset and only want them to move down as flaps.
Often times a flap can not be moved up as it is not hinged in a way that allows up travel. When this is the case you need to be very careful with your setup to make sure you do not drive the flap in the wrong direction. I strongly recommend using a rather weak low voltage power source when programming a model that has mechanical limits. This is a little safety. And ALWAYS start off with very small weights to confirm servo direction and limit values. Once you have things confirmed, increase the weights of the mixes. This is exactly what Ethos does, it starts off with very small weights with the flap mix. Almost like a glider pilot programmed the thing, oh yeah, one did.
When you are working with higher end models flap servos will almost always have a mechanical offset that will require a curve or outputs adjustment to "home" the flap correctly. In race planes it is common to setup the servo linkage to over center or "lock" the flap in the upright "home" position so the flap can not move.
Often times a flap can not be moved up as it is not hinged in a way that allows up travel. When this is the case you need to be very careful with your setup to make sure you do not drive the flap in the wrong direction. I strongly recommend using a rather weak low voltage power source when programming a model that has mechanical limits. This is a little safety. And ALWAYS start off with very small weights to confirm servo direction and limit values. Once you have things confirmed, increase the weights of the mixes. This is exactly what Ethos does, it starts off with very small weights with the flap mix. Almost like a glider pilot programmed the thing, oh yeah, one did.
When you are working with higher end models flap servos will almost always have a mechanical offset that will require a curve or outputs adjustment to "home" the flap correctly. In race planes it is common to setup the servo linkage to over center or "lock" the flap in the upright "home" position so the flap can not move.
I guess I am of a different mind. I wouldn't consider flaps to have a "mechanical offset". I look at a control surface as something that moves from one position to another and the servo should be setup so that its normal range of motion moves the surface from one end of its throw to the other, regardless where its "default" position is. Just because a flaps "default" position is near one end of its range of motion doesn't change anything in my mind.
Yes, that is for sure one method, and really the only method we had advanced mixing.
As an example, I like to set up my flaps to a slider or the throttle stick. The first 50% of travel will be a small amount of flaps, maybe 30 degrees. This allows me to add a little flap when needed for lift, fight off a tip stall, or should I want to start burning energy in approach for landing. The second 50% of travel adds in the air brakes (ailerons rising, and flaps moving fast). At full stick my ailerons are about 50% up and my flaps are close to 90 degrees down. On most planes I can not stay at this full stick position for very long, and I am adjusting the amount of input to control the glide slope to my landing spot. At the last second I pull off all of the flap to avoid any damage to the flaps. I never use slow down! That might be fine for a scale models, but not for our sport gliders.
As an example, I like to set up my flaps to a slider or the throttle stick. The first 50% of travel will be a small amount of flaps, maybe 30 degrees. This allows me to add a little flap when needed for lift, fight off a tip stall, or should I want to start burning energy in approach for landing. The second 50% of travel adds in the air brakes (ailerons rising, and flaps moving fast). At full stick my ailerons are about 50% up and my flaps are close to 90 degrees down. On most planes I can not stay at this full stick position for very long, and I am adjusting the amount of input to control the glide slope to my landing spot. At the last second I pull off all of the flap to avoid any damage to the flaps. I never use slow down! That might be fine for a scale models, but not for our sport gliders.
