Changes

===Which servos can be used with MICROBEAST PLUS=== <!--T:58-->

===Which servos can be used with MICROBEAST PLUS=== <!--T:58-->

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

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 />

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Servo torque in kg/cm should be at least 2-3 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 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 />

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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, normaly the more powerful is in advantage.<br />

===MICROBEAST/MICROBEAST PLUS with single Spektrum remote satelite on large helis=== <!--T:60-->

===MICROBEAST/MICROBEAST PLUS with single Spektrum remote satelite on large helis=== <!--T:60-->

''Why is using a single Spektrum remote satelite directly connected to MICROBEAST/MICROBEAST PLUS only recommended for helis smaller than 450 size?''<br />

''Why is using a single Spektrum remote satelite directly connected to MICROBEAST/MICROBEAST PLUS only recommended for helis equal or smaller than 450 size?''<br />

We say it is not safe to use a single remote satelite on anything bigger than TRex 450 size as the chassis on larger helis may hide the satelite in different flight situations. So you will loose direct sight between TX and RX more easily on larger helis. Additionaly with larger helis typically you fly further away than with small helis, so this doubles the risk of loosing the RF link when the satelite antenna is hidden. Using an EU Version of the Spektrum TX it is very likely the rf link may get disturbed in such situations as these radios do not have so much rf power output. If using an US version of the Spektrum radio with 300mW output power this can be different though. But also here we can't give a general rule, as the quality of rf link depends on many other factors like such mentioned above (Where is the satelite placed? Is direct sight to the TX in any flight condition guranteed? How far do you fly away? Are there obstacles in your flying field like tress or houses? ...). So it's hard to give a definitive limit and we only recommend to use this setup on small helis as this can be considered as safe application.<br />

We say it is not safe to use a single remote satelite on anything bigger than TRex 450 size as the chassis on larger helis may hide the satelite in different flight situations. So you will loose direct sight between TX and RX more easily on larger helis. Additionaly with larger helis typically you fly further away than with small helis, so this doubles the risk of loosing the RF link when the satelite antenna is hidden. Using an EU Version of the Spektrum TX it is very likely the rf link may get disturbed in such situations as these radios do not have so much rf power output. If using an US version of the Spektrum radio with 300mW output power this can be different though. But also here we can't give a general rule, as the quality of rf link depends on many other factors like such mentioned above (Where is the satelite placed? Is direct sight to the TX in any flight condition guranteed? How far do you fly away? Are there obstacles in your flying field like tress or houses? ...). So it's hard to give a definitive limit and we only recommend to use this setup on small helis as this can be considered as safe application.<br />

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