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| Fixed Wing Discuss fixed wing aircraft. |
Topic Review (Newest First)
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| 07-22-2011 02:08 PM | |
| Dale Hunter |
Re: Gas engine Frank, as for your DLE engines. The plug is not a resistor type, but the plug cap is a metal shield over the pocelin. Therefore a resistor type plug is not needed. As for other suggestions, hard to do from so far away. A local may see something a little out of the norm. Hope this helps, -Dale- 100% free webcam site! | Awesome chicks and it is absolutely free! | Watch free live sex cam - easy as 1-2-3 |
| 07-05-2011 05:56 PM | |
| Flypaper |
Re: Gas engine 2.4 is also suseptible to ign noise, just not quite so much. A buddy had a Quadra with a lawn mower plug that drove the Spektrum crazy till he put a RCJ7Y Champion plug in it. Another didn't have the metal resistor cap on tight which also drove the radio nuts. |
| 07-04-2011 09:28 PM | |
| bobreib |
Re: Gas engine Try a different ignition .. could be you have a bad one .. The lead to the plug should be a shielded lead .. maybe your igniton system has a problem in this area .. I always mount the ignition and ignition battery in the cowl area to keep it as far from the receiver as possible. We have 2 planes with DLE20 engines at our field, both flying 2.4 with no problems .. |
| 07-04-2011 09:03 PM | |
| Raymac |
Re: Gas engine I think you need to completely searate the entire spark system (module, battery,switches and sparkplug lead) from the receiver system by as much as you can (by 12" if possible). It is the interface between the two systems that usually causes the problem. Place the spark system ahead of the firewall, in the engine compartment and the receiver system as far back as possible. Battery leads and sparkplug wires are a big problem if they are near each other. Flying wires, landing gear, metal cabane struts etc.will all act as an aerial if they are too close to either system. In some cases I have had to replace flying wires with kevlar or fishing line. I am told by going to 2.4ghz the problem will disappear......it is not as sensitive to RF noise. |
| 07-04-2011 08:29 PM | |
| planecrazyisme |
Re: Gas engine Interesting dilemma Replaced the receiver. Same issue. Lots of interference on the ground. Double checked the plug and it is an NKG CM6. Seperated all the wires and still interference. Any other suggestions?? Thx Frank |
| 07-03-2011 08:15 AM | |
| bobreib |
Re: Gas engine I used an NKG BPMR6 in my SPE26. This plug will not fit the DLE20/30. They use an NKG CM6 plug ( non resistor plug ). I have this plug in 3 different engines and have no RF Noise problems. The all metal plug cap that fits over the plug is designed to shield the plug so that it does not radiate RF noise. Make certain that the plug cap is all the way on .. they can need quite a good push for them to snap over the plug. NKG CM6 plugs are available from your local Honda dealer and on line from Thunderbolt RC. Many of the Chinese engines have very poor spark plugs in them. Try an NKG .. |
| 07-03-2011 07:20 AM | |
| rcpilot1 |
Re: Gas engine could someone reply as per a good resistor plug to purchase for a 20 or30 DLE engines having some issues also I have changed from hitec receiver to futaba 72 mhz will see what happens today seemed to test better yesterday using a 2 switch system 1 ign other for battery each switch has its own battery 1400 mah |
| 07-02-2011 06:41 PM | |
| bobreib |
Re: Gas engine mogman has a good point. My original plug proved to be a big part of the problem. I switched to a quality resistor plug and it made a big difference in the amount of ignition noise. |
| 07-02-2011 06:24 PM | |
| mogman |
Re: Gas engine Make sure you are using a resistor spark plug (should have an "R" in the label..eg. BM6RE) Also make sure the plug wire cap is FIRMLY seated on the plug. I've read that a lot of guys have trouble using the original Chinese plug that came with the engine...(assuming you are using some sort of Chinese engine) A PCM rx. and a 2.4 rx will mask the problem, you should still make every effort to eliminate any and all sources of interference. |
| 07-02-2011 04:55 PM | |
| bobreib |
Re: Gas engine Keep as much separation as possible between the ignition circuit and the receiver circuit. In one of my planes I had to resort to covering the back of the firewall with metal foil tape, as used to seal duct work. This tipped the balance enough for me to get a good range check. All of the ignition components including the switch and battery were in front of the firewall. I did have a fibre optic kill switch , the only connection between the ignition system and the receiver. It was a Futaba 72 mHz system and a standard HiTec receiver. |
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