Bruce2.5D
Heliman
Location: Vancouver, Canada
| Hi All,
There has been as small change to the SK360's manual. In section 11, page 14, the new text reads:
"11 Flight with the SK-360 Gyro
In flight mode, the swashplate will not respond to the controls directly. Its action will be similar to a heading-hold tail gyro.
After it has been static for a few seconds, it will level the swash during spool up to ensure a stable take off. When you land your heli, always wait at least 5 seconds after the rotor spools down before spooling up again, so the gyro knows the helicopter is spooling up. Avoid moving the cyclic stick during spool-up, to prevent confusing the gyro when it’s not able to fly."
What the manual was missing before, is that when you land and let the heli spool down, you should wait 5 seconds before reving er' up again.
The reason for this "lock down" feature during spool up is that the vibration during spool up for the first 2 seconds can be extreme (you should see the graphs), and go beyond - way beyond - the measurement range of any gyro's sensor. This can result in the gyro trying to "correct" a false cyclic error as soon as it can, which can be bad. If it's given a chance to know it's taking off from static, the lock-down feature will silently prevent that. |
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