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11-05-2008, 10:43 AM | #1 (permalink) |
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Join Date: Apr 2008
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GY401 GAIN SETTING ???
Hi ! i just change futaba gy401 & s9257 tail servo for my belt cp .(before e-sky 0704a hh gyro) now have gain setting problem ! i follow gy401 manual set the travel limit between 65- 85 .gain for normal fly 60-80% ! hover get tail hunting until set gain to 40% is fixed,no hunting is it normal ?now using futaba T 7C radio thro curve for normal 0.30.60.80.100 maximum pitch +11 :o
CAN SOMEONE HELP THANK'S |
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11-05-2008, 03:27 PM | #2 (permalink) |
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Whatever works. That book was written with the bigger nitro helis in mind, the little ones came along much later and don't have the tail geometry for that much gyro gain. My 450s are in the 35 percent range, just find where it holds well and use that much and no more.
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11-06-2008, 08:39 AM | #3 (permalink) |
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Thread Starter
Join Date: Apr 2008
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Hi ! Andy ,today i test two servo for tail ! brand CORONA DS928BB (digital 0.12sec/60 ,1.8kg) & CS929MG (analog 0.11sec/60 , 1.8 kg) first test DS928BB hover bad hunting at tail until 30% gain delay 100% limit travel 100 at gy401 also can't make it (hunting also). 2nd test CS929MG it work's! 40% gain ,delay 25%, limit travel 80.(servo horn 8mm from central,linkage setting for belp cp) work similar like S9257servo but cost for it cheap and get metal gear just 1/5 cost of S9257
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