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B&C alternator

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pnicholson

Joined: 04 Jun 2011
Posts: 46

Posted: Tue Feb 25, 2014 10:23 am Post subject: B&C alternator

saw lots of discussion about fittings...

 

One question:

Apparently you save ~30lbs exchanging the old generator and accessories for a 35 Amp alternator.  30lbs on a 3000lb aircraft (CJ) will according to rough estimates, save you ~one percent on fuel costs.  Math is not my strong suit (not even close)... but assuming 500 hours flown at an all in 15 gph, you would have saved 75 gallons a year correct? at $5.00 a gallon, that works out to $375.  In two years, the unit has paid for itself - - not too shabby. Any other reasons to make the change or is this something best done upon generator failure?

  

Thanks,

Phil

(CJ6A - C-FEPN)



  [quote][b]

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jblake207(at)comcast.net
Guest

Posted: Tue Feb 25, 2014 10:35 am Post subject: B&C alternator

500 hours per year!  Wow!<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /> 

  

I didn't change due to generator failure.  In fact, I have a generator or two for the CJ if anybody wants them.  $50 bucks each, shipping and a cold beer at our next meeting.  I changed to the alternator because my solid state voltage regulator was inop.  The cost of a new VR was about $400 - $500 dollars and there was no warranty.  In other words, if it didn't work once installed, then "Sorry Charlie."  Thus the decision to convert to the alternator.  I've had mine for about 4 fours and the only issue was a loose wire that was easily repaired.  

 Jon Blake

jblake207(at)comcast.net



  From: "Philip Nicholson" <pednicholson(at)gmail.com>

To: "Yak-List" <yak-list(at)matronics.com>

Sent: Tuesday, February 25, 2014 12:23:01 PM

Subject: B&C alternator



  saw lots of discussion about fittings...

  

 One question:

 Apparently you save ~30lbs exchanging the old generator and accessories for a 35 Amp alternator.  30lbs on a 3000lb aircraft (CJ) will according to rough estimates, save you ~one percent on fuel costs.  Math is not my strong suit (not even close)... but assuming 500 hours flown at an all in 15 gph, you would have saved 75 gallons a year correct? at $5.00 a gallon, that works out to $375.  In two years, the unit has paid for itself - - not too shabby. Any other reasons to make the change or is this something best done upon generator failure?

  

 Thanks,

 Phil

 (CJ6A - C-FEPN)



[quote]

[b]

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dsavarese0812(at)bellsout
Guest

Posted: Tue Feb 25, 2014 11:37 am Post subject: B&C alternator

I might suggest, dropping 30 pounds from         the airplane, most on the nose,          does require a new weight and balance.....a REAL weight and               balance.  ie: reweigh the airplane                 and calculate a new CG.   Many people have added weight to the tail after removing much                   of the old avionics from the CJ.                      Now removing the old generator and VR will make the                     CG go even further aft.

                     

                     The only reason I bring this up                       is because without knowing what the new CG might be                           and then possibly putting                           a 200 lb+ person and baggage/stuff in the back                           could very well put the airplane in an out of                           CG (aft) condition.

                     Dennis

                           	  Quote: 	
		  A. Dennis Savarese

334-285-6263

334-546-8182 (mobile)

www.yak-52.com

Skype - Yakguy1 	
       On 2/25/2014 12:23 PM, Philip Nicholson wrote:

     

     [quote]                saw lots of discussion about fittings...

          

         One question:

         Apparently you save ~30lbs exchanging the old generator and           accessories for a 35 Amp alternator.  30lbs on a 3000lb           aircraft (CJ) will according to rough estimates, save you ~one           percent on fuel costs.  Math is not my strong suit (not even           close)... but assuming 500 hours flown at an all in 15 gph,           you would have saved 75 gallons a year correct? at $5.00 a           gallon, that works out to $375.  In two years, the unit has           paid for itself - - not too shabby. Any other reasons to make           the change or is this something best done upon generator           failure?

          

         Thanks,

         Phil

         (CJ6A - C-FEPN)

       

        	  Quote: 	
		  

	
     [b]

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