RCU Forums - View Single Post - Need help with gas engine glitching problem
Old 05-31-2006 | 05:53 AM
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topfuel4430
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From: Decatur , GA
Default Need help with gas engine glitching problem

Ok Gas Gurus...

If this is a redundent question, please forgive me...

I am new to gas, my first gas engine ever is the MVVS 1.60 with the tuned silencer mounted on an Extra 330S. I have a HUGE problem with radio interference. I am using a Futaba 9C and a 8 channel FM receiver. I am using a 2700mah 4 cell battery for radio and a 2500mah 4 cell for ignition. I have the ignition module mounted on foam, on the left side of my engine standoff. I also have my throttle and choke servo mounted on the opposite side and bottom of th eengine standoff. (see pics) I have just read seemingly thousands of posts concerning radio problems with ignition units, and now realize my servo location may be part of my problem. I have read serveral different opinion about how far away the servos should be, but is there a standard distance? I also have my ignition battery sitting next to my receiver battery... is this a problem?? The first 3 flights with this motor, was flawless. no interference at all. On the fourth flight it went to crap very quickly as I lost all control of the aircraft (all channels). It was very eradic one moment I had control, the next moment I didnt. I managed to get the plane on the ground, with only slight damage. The Landing gear ended up ripping off as I came down hard on one wheel. That can be fixed, but this glitching problem has me very concerned. The throttle linkage is in a very bad location right behind the header, so I mounted the servos in the engine compartment to ease the install. Just to be sure, I removed the receiver from the aircraft and installed it in my trainer (dont care if I crash it...). I made several flights with no problems whatsoever...

PLEASE HELP ME.

~James

Here is a link to my blog, I posted some pictures of the engine set-up.

http://www.ovalexpressracing.blogspot.com