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Knowledge base ds760 Common problems

Topics in Common problems

Topic Question Answer
6 When I spool up the helicopter pirouettes uncontrollably. Ensure that the transmitter reversing is correctly setup before proceeding with setting up the gyro direction reversing as explained in the gyro user...
61 When I give left stick input the servo stays at that position. It does not bounce back at all.... This servo behaviour is normal and is the result of direct coupling of the rudder stick to the servo. This only becomes evident at the very end of...
71 My tail goes out of control for about 2 seconds and then catch again. Sometimes it will rotate the... This behaviour is the result of the gyro being unable to control the tail. The most probable causes are: Tail hub bearings locking up when...
83 The helicopter tail wags / flutters / kicks / twitches. Rapid wag / fluttering (continuous or during specific manoeuvres) If the tail wag is continuous and rapid it is most likely the result of high...
90 The servo slightly moves when I switch between heading hold and rate mode, why? All trims are... This is normal functionality designed to allowing the gyro to accommodate rudder trim in rate mode.* Spartan RC products follow the Futaba...
91 The rudder servo travels fully over in one direction about 1 second after power is switch on.... This issue affects Align and Savox servos and has been reported when using Spartan gyros as well as gyros of other brands. Background information:...
97 There is no yaw oscillation during flight, but on ground when I spool up or after landing there is... This is not uncommon with heading hold gyros as structural parts of the heli as well as the undercarriage flex and spring back. Also the contact with...
87 When I landed I found that the status LED was flashing blue. Please see knowledge base [topic 31].
120 In rate mode the servo is very quick but in heading hold mode it is very slow. There are substantial differences in the operation of rate and and heading hold (AVCS) modes. When the gyro operates in rate mode the rudder stick...
88 My tail servo gets warm/hot. Spartan gyros are designed to delivery the highest performance and they require equally high performance from the tail servo to achieve their task....
130 The gyro appears to have lost the reversing adjustment.   Our products have very sophisticated management of the configuration parameters utilising error detection codes and storing duplicate copies...
50 The heli piros very quickly at full stick but with the stick 1/2 over the tail feels sluggish. Based on expert pilot feedback our gyros have build in rudder exponential in order to provide precise control near mid-stick and fast rotation rates...
39 The Status light is flashing and the gyro does not start. It is normal functionality of our gyros not to start until the receiver is producing servo control signals. In addition the rudder stick must be...
33 The gyro does not start in AVCS mode. It is normal functionality of our gyros not to start if the rudder stick is not centered in AVCS mode or if the gyro gain is too low. Ensure that you...
9 The helicopter pirouettes too slow. My old gyro was more responsive. Based on expert pilot feedback our gyros are designed to provide precise control near mid-stick and fast rotation rates at full stick. It may take a...
10 The tail bounces when it stops. High performance gyros expect equally high performance from the helicopter mechanics. If the helicopter tail does not decelerate as fast as the gyro...
15 The tail kicks / blows out to the right when I suddenly increase the collective. Such kick and blow outs are typically the result of low gyro gain, slow tail servo, excessive collective or tail mechanics that are unable to provide...
16 My ds760 won't enter configuration mode. If your gyro run firmware version 2.00 or newer please consider using an external setup button or bind plug as detailed in [topic 74]. If you prefer...
17 My ds760 won't enter servo selection mode. If your gyro runs firmware version 2.00 or newer please consider using an external setup button or bind plug as detailed in [topic 74]. If you...
18 The servo is not moving. Check that the rudder and gain inputs of the gyro are plugged to the correct receiver outputs. Make sure that the correct servo type has been...
20 The helicopter tail drifts. Spartan gyros offer exceptional tolerance to the vibration levels that are commonly found on model helicopters. However, there are many factors that...
21 Difficulties entering setup mode when using Spektrum and 2.4GHz JR radios. Please consider updating your gyro to the latest firmware and use an external setup button or bind plug as detailed in [topic 74]. If you prefer to...
31 The Status light of the gyro flashes / blinks twice blue even when the rudder stick is centred. Double blink means that the gyro sees the rudder stick off centre and thus tail servo creep and tail drift in flight may also appear at the same...
32 With the rudder centred the servo creeps to full travel. If the Status light blinks twice even when the rudder stick is centered it is an indication that the gyro does now have accurate knowledge of the...
99 I setup the gyro several times but it won't save the new settings. The gyro only saves the new configuration parameters when the entire setup process is completed. If you power off the gyro sooner any changes will be...

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