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| Century Century Helicopters Support |
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Thread Tools | Display Modes |
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#1 |
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Registered Users
Join Date: Mar 2009
Location: USA
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Has anyone used the governor on this ESC? I acquired a used one and am wondering how well (if at all) the governor works.
I'm currently getting 2075 RPM at 80% and 2150 RPM at 82.5% throttle. 1110kV, 9T, 96T, 6S. Just wondering if the governor could help bring that down a little. I have no idea (other than enabling it) how to set it up to try it out. Thanks! -John
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Swift NX 550 (x2) | Swift 16 550 | Mini-Titan E325 SE | Mini-Titan E325 Pro (x2) | Blade 400 | Quark SRB (x2) | Blade mSR | Blade mCX |
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#2 |
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Registered Users
Join Date: Jun 2010
Location: West Coast
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What tach where you using to get tjhose rotor rpm figures?
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#3 |
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Registered Users
Thread Starter
Join Date: Mar 2009
Location: USA
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I'm using Heli-HeadSpeed to calculate the RPMs from the audio track of the videos I shot. It looks for and locks onto sub 100Hz frequencies that are caused by the blades. At 1800 RPM there will be a 1800/60*2=60Hz component in the audio spectrum. At 2100 there will be a 70Hz component, and so on. I've used it before with my other helis and it's results were in line with an actual optical tach - I need to verify it's results for this heli with an optical tach as well.
I'm also using Head Speed Calculator (v1.0.10) to calculate what-if setups. In general I've found the "Normal Voltage" RPMs to be much lower than what's measured at the field with an optical tach. I get closer results from the "Variable Load" RPMs with the cell voltage set closer to 4.2V rather than 3.7V. Flight 1 - there was a lot of wind noise and the neighbor's lawnmower adding to the ambient noise. I switched from Normal to Idle Up at approx. 120s: Flight 2 - the wind died down and the neighbor finished cutting the grass. I switched from Normal to Idle Up at approx. 70s:
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Swift NX 550 (x2) | Swift 16 550 | Mini-Titan E325 SE | Mini-Titan E325 Pro (x2) | Blade 400 | Quark SRB (x2) | Blade mSR | Blade mCX Last edited by FR4-Pilot; 05-13-2012 at 11:20 AM.. |
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