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support/help understanding GOV at Nitro heli issue https://www.spirit-system.com/phpBB3/viewtopic.php?f=20&t=6087 |
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Author: | ZeXx86 [ Fri 17. May 2024 6:03:48 ] |
Post subject: | Re: support/help understanding GOV at Nitro heli issue |
Hello, it seems difference is in headspeed you were starting from. When spooling up nitro you have to always leave Governor to do so from Idling RPM. Not to do it manually with throttle curve. So from approximately 8-15% to target RPM. It seems you were over 50% TC when engaging Governor. |
Author: | kay [ Fri 17. May 2024 11:19:16 ] |
Post subject: | Re: support/help understanding GOV at Nitro heli issue |
oh, I do as you are describing already, the pics of the diagrams are zoomed to see the rpm more in detail and so the spool up from zero is not visible. For understanding, why exactly does this influence the headspeed as it is set by a fixed value from the trottle when engaging the Gov? Thank you and best regards, Kay |
Author: | kay [ Fri 17. May 2024 13:03:17 ] |
Post subject: | Re: support/help understanding GOV at Nitro heli issue |
...in addition, the spoolup (after setting the trottle curve to a straight line for activating the governor) never starts at really zero rpm as the clutch is not separating perfectly. After engine start and putting the heli to the airfield and getting back to the pilots area, the headspeed has already raised to a certain speed, but I did not care about that yet. I assume it could be 300rpm at the first flight because I wanted to warmup the engine a little bit. Would the spirit need realy zero headspeed when engaging the gov? I hope not, but if so, what would happen if I cancel an autorotation? best regards, Kay |
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