XK X251 Manuals

XK X251 adjusting the X7 Transmitter Info collected from: www.rcgroups.com and info shared by SoloProFan & SeByDocKy 3G Mode: Even though this quad is capable of flying in 3G mode, and perform manual flips, the transmitter may not have been setup properly, to access 3G mode. I'll try to list all the steps involved to allow the switch marked "G.S/Gear" to switch between 6G and 3G modes. - Power on transmitter - Set "G.S/Gear" switch to down position - Press and hold the "mode" button till the numbers "123456" start flashing on the display - Rotate the rotary dial on the right in clockwise direction to the position where the word "gyro" will be flashing on the display - Press the rotary dial, and a number will start flashing below the word "gyro". - Rotate the rotary dial so that the number is 25 (to check if the 6G mode is still available, flick the "G.S/Gear" switch up, and see if the number changes to 75 - Press the "back" button one time, and then one more time, to leave settings menu Note: You can use different values, anything of 42 and above puts the quad in 6G mode, anything of 41 and below puts it in 3G mode. Altering Throttle Curve: The top switch marked "FMOD/FLAP" is unused on this quad, as it has no idle up, like a CP heli. But in one of the other X251 threads the suggestion was made to use it to be able to switch between stock throttle curve settings, which has it limited to 75%, and a more aggressive setting. - Power on transmitter - Set "FMOD/FLAP" switch to down position - Press and hold the "mode" button till the numbers "123456" start flashing on the display - Rotate the rotary dial on the right in clockwise direction to the position where the word "T.Curvc" will be flashing on the display - Press the rotary dial, and the first number, "1" will start flashing, as well as a "00" - Rotate the rotary dial clockwise, to select "3" - Press down on the rotary dial so only "3" is flashing, and chance the number that appeared, "35", to "45" - Press the back button to go a step back, and rotate the rotary dial again, to select "4" - Press down on the rotary dial again, and only "4" will start flashing, along with a number "45", change that to "55" - Press back again, and using the same steps as before, select position "5" and change it's value to "95" - Press the back button once, and then again, to exit settings menu. Note: If you have trouble keeping steady altitude, and find that even with stock T curve you have too much power, I would try something like 0-20-35-50-65, so all steps are 15. Or more docile, with smaller steps, so even easier to maintain altitude, 0-20-35-48-60 Increasing Dual Rate settings: Stock the dual rate settings are programmed to switch between 80% and 100 %. So a beginner doesn't need to change anything, just keep the D/R switch in up position and you have 80%. When feeling more confident, try 100, DR switch down. If feeling like needing more speed and agility, alter high setting from 100 to 125 for roll and elevator. Yaw I'd leave at 100%, it gets a little less smooth at 125. There are 4 channels that are each linked to a stick axis. 3 is throttle, and is adjusted with T(hrottle)-curve. 4 is yaw, and 1 and 2 are elevator and roll. When adjusting DR you will want to concentrate on channels 1 & 2. - Set "D"/R" switch to down position - Press and hold the "mode" button till the numbers "123456" start flashing on the display, as well as "Reverse" - Rotate the rotary dial on the right in clockwise direction to the position where the word "D/R will be flashing on the display - Press the rotary dial, and the first number, "1" will start flashing, as well as a "100" - Rotate the dial until the channel you want to alter is selected - Press down on the rotary dial so only the selected number is flashing, and rotate the dial until the desired value is reached - Move the stick in both directions and verify that both directions show the newly set value. If not, move the stick in the direction that shows the old value, and adjust with the rotary dial - Press down on the rotary dial to get back to the previous screen. If needed you can rotate the dial to select another channel number to adjust, press down on the dial, and rotate to adjust the value of that channel. - Once you have altered all channels you wished to change dual rate settings for, press the back button once. You can now check if the settings are working, by selecting each of the 3 channels, 1, 2 and 4, and operate the D/R switch. You should see the blinking number on the right of the display change with the switch position, like for instance between "80" and "100" in nothing has been adjusted yet, or in my case, between "80" and "125" - Once satisfied with the adjustments, press the back button 2 times, to exit the menu Note: It is possible to set different value for dual rate in each direction! When you have the channel selected, and press the rotary dial to adjust, you need to move the stick in the direction you want to adjust. Default is right or up direction. so when you don't select down or left, you only adjust the setting for one direction.