I Do search in the full parameter list and I found this :
" FBWA_TDRAG_CHAN: FBWA taildragger channel
This is a RC input channel which when it goes above 1700 enables FBWA taildragger takeoff mode. It should be assigned to a momentary switch. Once this feature is enabled it will stay enabled until the aircraft goes above TKOFF_TDRAG_SPD1 airspeed, changes mode, or the pitch goes above the initial pitch when this is engaged or goes below 0 pitch. When enabled the elevator will be forced to TKOFF_TDRAG_ELEV. This option allows for easier takeoffs on taildraggers in FBWA mode, and also makes it easier to test auto-takeoff steering handling in FBWA. Setting it to 0 disables this option. "
and it's related parameters such as :
TKOFF_TDRAG_ELEV: Takeoff tail dragger elevator
TKOFF_TDRAG_SPD1: Takeoff tail dragger speed1
When enabled the elevator will be forced to TKOFF_TDRAG_ELEV. This option allows for easier takeoffs on taildraggers in FBWA mode
good sound here , Dose it solution for our issue ?
I try it
but no effect when I do the FBWA_TDRAG_CHAN to more than 1700. the Elevator move as I do but immediately back to close elevator .
maybe I miss any thing .
any info can help in this ?