Few weeks ago acquired a Sukhoi (ver.1, green, electric of course), with a included Orange-rx DSM2, which bound quick to my JR X9303. It flew fine at the club, no issues, everything good. Then one specific day it momentarily loss signal at about 100 feet altitude and about the same in distance from me, dead, no control, pointed nose down and buried into the corn field, destroyed. Brought it back and immediately did a range test, (depressing rear button and walking 30 paces or 100 feet), passed, all servos working, fine.
Took it home and into the parts bin until further notice when I get the energy to work on it. Yesterday took my Phoenix Sonic low wing, MK2, after flying it most of the week, and all of a sudden while bringing it back for landing after about 9 min of normal flying, airplane non responsive, stayed banking left at full speed, no elevator, no throttle back, I even told the guys, "I lost it", and definitely so it buried into the corn field, once again. This time about 100 feet altitude and maybe 300 feet away from the tx. I checked the 4-cell rx Spektrum 1100mah Spektrum battery before take off, and afterwards, a healthy 5.3v, and tx 10.5v. After the crash did a range check, passed, all good. On both occasions tx antenna in an angle as it is recommended.
On the Sukhoi it had a Orange rx receiver, and in the Phoenix a Lemon-rx receiver, both 6-channel. Opened the tx to see, but no loose cables/connectors or cable chafing.
I got a spare Lemon-rx DSM2 receiver with satellite, and will install that on a trainer, and upgrade the receiver battery to 5-cell to see if that eliminates the problem. I read for electric to use a spare rx battery instead of getting power from the lipo battery. Currently, only flying airplanes on PCM/PPM. Or I may ditch the 2.4ghz and stay with my Futaba T6XA PCM/PPM and buy the same crystals for all my airplanes, 6 model memory.
Took it home and into the parts bin until further notice when I get the energy to work on it. Yesterday took my Phoenix Sonic low wing, MK2, after flying it most of the week, and all of a sudden while bringing it back for landing after about 9 min of normal flying, airplane non responsive, stayed banking left at full speed, no elevator, no throttle back, I even told the guys, "I lost it", and definitely so it buried into the corn field, once again. This time about 100 feet altitude and maybe 300 feet away from the tx. I checked the 4-cell rx Spektrum 1100mah Spektrum battery before take off, and afterwards, a healthy 5.3v, and tx 10.5v. After the crash did a range check, passed, all good. On both occasions tx antenna in an angle as it is recommended.
On the Sukhoi it had a Orange rx receiver, and in the Phoenix a Lemon-rx receiver, both 6-channel. Opened the tx to see, but no loose cables/connectors or cable chafing.
I got a spare Lemon-rx DSM2 receiver with satellite, and will install that on a trainer, and upgrade the receiver battery to 5-cell to see if that eliminates the problem. I read for electric to use a spare rx battery instead of getting power from the lipo battery. Currently, only flying airplanes on PCM/PPM. Or I may ditch the 2.4ghz and stay with my Futaba T6XA PCM/PPM and buy the same crystals for all my airplanes, 6 model memory.
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