Changes

===Which servos can be used with MICROBEAST PLUS===

===Which servos can be used with MICROBEAST PLUS===

A rule of thumb to find well suited servos for you flybarless helicopter: '''As strong as necessary, as fast as possible, with less deadband as available.'''<br />

A rule of thumb to find well suited servos for you flybarless helicopter: '''As strong as necessary, as fast as possible, with less dead band as available.'''<br />

<br />

<br />

Servo torque in kg/cm should be at least 3-4 times the heli weight (in kilogram). Speed should be at least 0.1s/45°. The faster the better. In addition the servo should be very precise, have little gear backlash and a low deadband. And of course it should be a digital servo that supports high frame rates (200Hz or more). Also using special heli servos which are designed for maximum vibration resistance is a good choice.<br />

Servo torque in kg/cm should be at least 3-4 times the heli weight (in kilogram). Speed should be at least 0.1s/45°. The faster the better. In addition the servo should be very precise, have little gear backlash and a low dead band. And of course it should be a digital servo that supports high frame rates (200Hz or more). Also using special heli servos which are designed for maximum vibration resistance is a good choice.<br />

<br />

<br />

Note that all the speed is useless if the torque is not enough. In doubt when two servos of a series are only slightly different in speed and torque, normaly the more powerful is in advantage.<br />

Note that all the speed is useless if the torque is not enough. In doubt when two servos of a series are only slightly different in speed and torque, normally the more powerful is in advantage.<br />

<br />

<br />

Anyhow, if in doubt ask the manufacturer of the servo if it can be used in combination with flybarless/gyro systems. Not all servos can handle the additional stress of getting different control signals every few milliseconds. Also it must be said that not all servos can be used at maximum frequency even if so it is told on the servo's data sheet. Depending on air temperature, voltage level and heli size it is possible that servos can not be driven at their limit as the servo motor or electronics may heat up too much.'<br />

Anyhow, if in doubt ask the manufacturer of the servo if it can be used in combination with flybarless/gyro systems. Not all servos can handle the additional stress of getting different control signals every few milliseconds. Also it must be said that not all servos can be used at maximum frequency even if so it is told on the servo's data sheet. Depending on air temperature, voltage level and heli size it is possible that servos can not be driven at their limit as the servo motor or electronics may heat up too much.'<br />

===The tail rotor turns around instantly when doing backwards flying.===

===The tail rotor turns around instantly when doing backwards flying.===

* Tail gyro gain too low. Increase tail gyro gain as described [[Manuals:MB_Plus:Flying|here]] and make sure you're using the tail gyro in HeadingLock mode (using Normal-Rate mode it is nearly impossible to perform backwards maneuvers!).

* Tail gyro gain too low. Increase tail gyro gain as described [[Manuals:MB_Plus:Flying|here]] and make sure you're using the tail gyro in HeadingLock mode (using Normal-Rate mode it is nearly impossible to perform backwards maneuvers!).

* No sufficient thrust produced by the tail rotor. Check tail pitch angles. Reduce the maximum amount of available tail pitch throw at [[Manuals:MB_Plus:Setupmenu_E|Setup menu point '''E''']] to prevent the tail blades from stalling or increase the tail pitch angle if it‘s too small. Use different (larger) tail rotor blades or increase the rotor rpm.<br />

* No sufficient thrust produced by the tail rotor. Check tail pitch angles. Reduce the maximum amount of available tail pitch throw at [[Manuals:MB_Plus:Setupmenu_E|Setup menu point '''E''']] to prevent the tail blades from stalling or increase the tail pitch angle if it's too small. Use different (larger) tail rotor blades or increase the rotor rpm.<br />

<br />

<br />