ORIGINAL: k_sonn
I had the same issue as described above. Over the last 2 years I lost 3 jets while using a JR 10X and a Spektrum module. Fail safe never kicked in for any of the crashes. After the first one went in I added more redundency and greater capacity receiver packs. For all three crashes, the jet rolled to the right and the throttle stayed at the setting it was at before the signal was lost. After losing my Starfire last year at Jets Over Whidbey, I stopped using Spektrum and have not had a single problem with FAAST. The guys I fly with use the JR 12X non-module Tx and none of them have had a problem. For me, the lost of three planes has caused me to lose confidence in the Spektrum system.
Kirk
Problems with plug-in modules with the 10X have unfortunately been pretty common.
From what I've been told, JR has developed a replacement module which is supposed to work better. I'm in no hurry to try it though.
Gordon