From: RandyKru@aol.com
Message-ID: <29.f99c129.27a0eec9@aol.com>
Date: Wed, 24 Jan 2001 21:51:53 EST
Subject: Alternator Voltage Regulator compatability
To: lancair.list@olsusa.com
Reply-To: lancair.list@olsusa.com
Mime-Version: 1.0

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I have been having a problem with the battery voltage dropping below the low 
level threshold when I have moderately high current draw.  Since up until now 
this has only occurred when gear is extended or retracted I have not bothered 
with it until now.  I recently added landing lights and discovered the 
problem occurs with landing lights on while on approach.  I have recently 
removed the alternator (for another reason too lengthy to explain here) and 
began investigating (again) this issue.  I have an older model L60 (60 amp) 
ND alternator from Pelican Aviation with an LR3 Regulator from B&C.  The 
label on the alternator indicates that it has a built in regulator.  The 
write up in ACS catalog for the regulator indicates that it will not work 
with an alternator that has a built in regulator.  The alternator has clearly 
been working to some degree as I have about 80 hours on the plane.  However, 
something is not right because I should not be getting a low voltage alarm 
under these circumstances.  I am considering buying a new B&C alternator.  
Unfortunately I don't have anymore data and the airplane is now sitting 
without alternator.  If necessary I can put it back on and get some more 
flight data.  Does anyone have any ideas on this problem?  Any help is 
appreciated.
Regards,
Randy Kruger
LNC2, N1222K  
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