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Old 9th December 2006 | 00:39
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Macgyver
 
Joined: Jul 2005
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From: heaven
Negative Torque Systems
Hey guys,

I don't fully understand the purpose of an NTS system. I was reviewing the manual for the SA226 and it says that the NTS allows the props to windmill for an air restart at about 70% of feather. Is an NTS system supposed to be an alternative to an auto-feather system? If you have an engine failure, I would imagine that in most cases an attempted air-restart would be inadvisable, so why would you want your prop windmilling when you can have an auto-feather system which causes the failed engine's prop to immediately feather?

Thanks in advance.
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