I just bought Cermarks Dragonfly electric glider. I live on Maui Hawaii. flying about one month.. Now at the point where I don't crash my aircraft anymore... I've been learning from some really nice helpful pilots here... I started with cheap disposable park flyers [electric ones] Now into sailplanes.. We fly here on a slope at the 3500ft level.[up the mountain] Good spot.... Anyway Cermark sent me hs-50 hitec feather servos and a esc-5- motor control -and gws 4 channel pico type receiver 73 mhz crystal 72.310 channel #26. 6-cell battery with car charger. whole set-up... First off with fully charged battery motor runs dead in less then a minute...So I took off the prop made sure aircraft was cg'd correctly and ltossed off slope and the plane flew great for several minutes and glicted out of my control and crashed...When I picked up the plane... I found that if you just tapped the fusalage the servos went wild up and down and side to side out of control... Is this a bad receiver and or servos??? Any suggestions????P.S I have a Aspire RTF electric that flys great no problems and a j3 piper cub no problems in the same spot up to cloud level --here at about 500 or so feet above us...No-one else on my frequency either... also I'am using my Hitec radio transmitter that came with the Aspire with the same crystal...72mhz 72.310 in the receiver.. Aloha Rich W.....

When you tap the fuse, is your radio on? If not, it is not uncommon for servos to chatter when the radio is off.

If it was on, it sounds like you have a loose antenna, or the antenna is resting against something that is generating interference.

GWS receivers have very limited range. The 4 Ch pico is about 500 feet so you could have gotten out of range. They are also not known for glitch free perfromance, but you sound like you have a different problem.

Did you range check it? How far? No problems? With motor on and off?

Aloha..The receiver problems are happening with the radio on, and range is not the issue as it happens at less then one hundred feet.. What would you recommend for a small receiver.I gave up on the motor and use it as a glider now.It flys well in light thermals. Although I can't use it until I fix this problem...PS. I used to live in Westhampton L.I.N.Y. Nice there except for the weather...Better her on Maui....Thanks Rich W....

I like the Hitec line of receivers. Their electron 6 is small, light and rock solid. 6 channels. If you need it ot fit in a very tight space or need to shed some weight, you can take the case off and shrink wrap it.

Berg and the FMA Direct receivers also get very good remarks all the time.