[NSRCA-discussion] Switch /replacement/reliability

Sat Jun 17 14:53:09 AKDT 2006

On Jun 17, 2006, at 5:40 PM, Ed Alt wrote:

> A mag.  Lessee now.  I think the mags are in that overhead  
> compartment, just in front of the rear lavatories.
>

You guys are just being silly.  Mags are wheels.  Aren't they?

Ron Van Putte
> ----- Original Message -----
> From: Bill Glaze
> To: NSRCA Mailing List
> Sent: Saturday, June 17, 2006 3:16 PM
> Subject: Re: [NSRCA-discussion] Switch /replacement/reliability
>
> Jeez--Whatsa Mag?  Bill Glaze, Capt. 767, Ret'd
> ----- Original Message -----
> From: Bob Richards
> To: NSRCA Mailing List
> Sent: Friday, June 16, 2006 2:37 PM
> Subject: Re: [NSRCA-discussion] Switch /replacement/reliability
>
> Like checking both mags before taking off in a real plane!!!
>
> Bob R.
>
>
> Ron Lockhart <ronlock at comcast.net> wrote:
> Here is another candidate for switch reliability.
>
> One battery with two leads each to a switch, each lead from switch  
> to RX.
> If you can remember to turn on two switches (or mechanically tie  
> both switches to a single
> mechanical actuator) you get redundant switches and connectors to RX.
> Zero additional single point failure items, not heavy or expensive.
>
> If you want to add battery redundancy; Two batts, each to it's own  
> switch, each with
> seperate cable and connector to RX.
> You have to accept additional workload of checking both batteries  
> often.
>
> Later, Ron Lockhart
>
> ----- Original Message -----
> From: Wayne Galligan
> To: NSRCA Mailing List
> Sent: Friday, June 16, 2006 8:56 AM
> Subject: Re: [NSRCA-discussion] Voltageregulatormaintenance/ 
> replacement/reliability
>
> Chris,
>
> I have been using the MPI Miracle switch now for 5 yrs and 6  
> different planes with no failures of the electronics.  I have had  
> two of them where the case has broken or the tab where the screw  
> holds it has broken.  Maybe I tightened         them too much.   I  
> have concidered just using a H.D. Futaba switch and not using a  
> regulator just to keep one more point of failure out of the equation.
>
> Wayne Galligan
> ----- Original Message -----
> From: White, Chris
> To: NSRCA Mailing List
> Sent: Friday, June 16, 2006 7:25 AM
> Subject: [NSRCA-discussion] Voltage regulatormaintenance/ 
> replacement/reliability
>
> I know when a regulator fails when using a li-on battery the  
> results are catastrophic.   (lost one that way with a miracle  
> switch)  How often should a voltage regulator be replaced?  Is one  
> VR better than another?  Are there any checks which can be done to  
> curtail disaster.
>
> At this point I prefer flying 5C non-regulated nimh or nicads….just  
> to take the VR out of the loop.   I still have an airplane which  
> has Li-on’s and am thinking hard about how far I should push the  
> regulator.   Airplane is probably 5-6 years old and equipment is  
> probably original radio stuff.  I have 153 flights on it myself and  
> don’t know how many the previous owners put on it.  (The onboard Li- 
> on is 2004 with the 153 flights….should it be replaced?)
>
> Your input is appreciated!
> Chris
>
> From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca- 
> discussion-bounces at lists.nsrca.org] On Behalf Of John Ferrell
> Sent: Thursday, June 15, 2006 4:48 PM
> To: NSRCA Mailing List
> Subject: Re: [NSRCA-discussion] JR and un-regulated 6V
>
> Three-terminal regulators dissipate the unused part of the power.
> My Prophecy takes about 135 mils per flight to recharge. There are  
> a lot of factors that affect this number, especially airframe  
> vibration.
> I keep an eye on it and am more worried about it being consistent  
> rather than some value.
>
> John Ferrell    W8CCW
> "My Competition is not my enemy"
> http://DixieNC.US
> ----- Original Message -----
> From: Wayne Galligan
> To: NSRCA Mailing List
> Sent: Thursday, June 15, 2006 10:21 AM
> Subject: Re: [NSRCA-discussion] JR and un-regulated 6V
>
> Does running a regulator, like a 5.1v-5.5v or 6.0v regulator, have  
> any signifigant draw on the battery as it regulates the voltage?  I  
> have been using the MPI Miracle switch that regulates to 6v.  I can  
> get (4) 15 min flights on a 1650mil NiMh pack(Sanyo) before my ESC  
> says to stop flying.
> I will put back about 700-750 mil on the recharge.
>
> Wayne Galligan
> ----- Original Message -----
> From: White, Chris
> To: NSRCA Mailing List
> Sent: Thursday, June 15, 2006 7:54 AM
> Subject: Re: [NSRCA-discussion] JR and un-regulated 6V
>
> Hi Matt,
> Are you using low-impedence nimh packs?   Would you divulge your  
> battery source?
>
> Thanks, Chris
>
> From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca- 
> discussion-bounces at lists.nsrca.org] On Behalf Of rcmaster199 at aol.com
> Sent: Wednesday, June 14, 2006 5:03 PM
> To: nsrca-discussion at lists.nsrca.org
> Subject: Re: [NSRCA-discussion] JR and un-regulated 6V
>
> I am doing that with NO problems. Fast charged on the way to field  
> most of the time, with a Serius fast charger. In my set-up, a  
> 1650ma NiMH lasts about 3 flights longer than a 4 cell pack of  
> equivalent capacity. Equivalent ending cell voltages of 1.20v  
> unloaded (1.15V loaded with 1000 ma draw) for either battery.
>
> Getting greater torque and speed as well as longer flight time.  
> Best all around
>
> MattK
>
> -----Original Message-----
> From: Gene Maurice <gene.maurice at comcast.net>
> To: 'NSRCA Mailing List' <nsrca-discussion at lists.nsrca.org>
> Sent: Wed, 14 Jun 2006 15:36:18 -0500
> Subject: [NSRCA-discussion] JR and un-regulated 6V
> Anyone aware of any issues running unregulated 6v Nimh pack with JR  
> Digital
> servos??
>
>
>
> Gene Maurice
> gene.maurice at comcast.net
> Plano, TX
> AMA 3408, NSRCA 877
>
>
> _______________________________________________
> NSRCA-discussion mailing list
> NSRCA-discussion at listsnsrca.org
> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
> size=2 width="100%" align=center>
> Check out AOL.com today. Breaking news, video search, pictures,  
> email and IM. All on demand. Always Free.
> _______________________________________________
> NSRCA-discussion mailing list
> NSRCA-discussion at lists.nsrca.org
> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
> _______________________________________________
> NSRCA-discussion mailing list
> NSRCA-discussion at lists.nsrca.org
> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
> _______________________________________________
> NSRCA-discussion mailing list
> NSRCA-discussion at lists.nsrca.org
> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
> _______________________________________________
> NSRCA-discussion mailing list
> NSRCA-discussion at lists.nsrca.org
> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
> _______________________________________________
> NSRCA-discussion mailing list
> NSRCA-discussion at lists.nsrca.org
> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
>
>
>
> _______________________________________________
> NSRCA-discussion mailing list
> NSRCA-discussion at lists.nsrca.org
> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
>
>
> _______________________________________________
> NSRCA-discussion mailing list
> NSRCA-discussion at lists.nsrca.org
> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
> _______________________________________________
> NSRCA-discussion mailing list
> NSRCA-discussion at lists.nsrca.org
> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.nsrca.org/pipermail/nsrca-discussion/attachments/20060617/5df67501/attachment-0001.html 