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Helicopters
Building the JR Vibe NEX E8 - Slow Build
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<blockquote data-quote="coolgabsi" data-source="post: 32858" data-attributes="member: 22"><p>On a bigger model electric or nitro, now a days with the motors and batteries that are being run, running a governor is almost inevitable on the electrics. </p><p></p><p>In a nitro you are trying to save the engine from over revving.. </p><p></p><p>In electrics, with extreme power and no limit on headspeed ( exaggerating but you know, nitro is confined to 2200 2250 on this size , while electrics can do much higher) , you look and extreme amount of radial forces that work on the spindle shaft, blade grips and blades... If you go above a certain head speed like say descending, and your motor keeps revving when under no load, you are running a risk of burning that electric motor, and not just that, you run a risk of as soon as load your head, your head basically just tearing itself apart. And yes it happens.. Cause the instantaneous stress and G that we are putting on all those metal and carbon fibre parts are much more that they can handle ... </p><p></p><p></p><p>In my old nitro bird, I had to run a governor not to save my motor but my head as it was plastic and small diameter spindle and not made for 3D, I really couldn't risk it going too fast on it, or would have tore itself apart. </p><p></p><p>Another big reason is gyros .. ESP flybarless... They prefer a constant headspeed than every changing with environment, and that is not just from your curves but also your motor over or under revving at a particular point. </p><p></p><p>I had the same questions as you.. And i found all this out. Hope this helps <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":)" title="Smile :)" data-smilie="1"data-shortname=":)" /></p><p></p><p>Now please don't think I am saying that Marius's bird can't handle high G maneuvers and high head speeds, it can, but he would rather run a governor and keep it safe and stable than see his bird dissipate in mid air. <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":)" title="Smile :)" data-smilie="1"data-shortname=":)" /> lol I am sure we all will <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":)" title="Smile :)" data-smilie="1"data-shortname=":)" /> hahahahha <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":)" title="Smile :)" data-smilie="1"data-shortname=":)" /></p><p></p><p>Fly safe!! <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":)" title="Smile :)" data-smilie="1"data-shortname=":)" /> have fun!</p></blockquote><p></p>
[QUOTE="coolgabsi, post: 32858, member: 22"] On a bigger model electric or nitro, now a days with the motors and batteries that are being run, running a governor is almost inevitable on the electrics. In a nitro you are trying to save the engine from over revving.. In electrics, with extreme power and no limit on headspeed ( exaggerating but you know, nitro is confined to 2200 2250 on this size , while electrics can do much higher) , you look and extreme amount of radial forces that work on the spindle shaft, blade grips and blades... If you go above a certain head speed like say descending, and your motor keeps revving when under no load, you are running a risk of burning that electric motor, and not just that, you run a risk of as soon as load your head, your head basically just tearing itself apart. And yes it happens.. Cause the instantaneous stress and G that we are putting on all those metal and carbon fibre parts are much more that they can handle ... In my old nitro bird, I had to run a governor not to save my motor but my head as it was plastic and small diameter spindle and not made for 3D, I really couldn't risk it going too fast on it, or would have tore itself apart. Another big reason is gyros .. ESP flybarless... They prefer a constant headspeed than every changing with environment, and that is not just from your curves but also your motor over or under revving at a particular point. I had the same questions as you.. And i found all this out. Hope this helps :) Now please don't think I am saying that Marius's bird can't handle high G maneuvers and high head speeds, it can, but he would rather run a governor and keep it safe and stable than see his bird dissipate in mid air. :) lol I am sure we all will :) hahahahha :) Fly safe!! :) have fun! [/QUOTE]
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Building the JR Vibe NEX E8 - Slow Build
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