AeroElectric-List Digest Archive

Mon 04/06/15


Total Messages Posted: 8



Today's Message Index:
----------------------
 
     1. 05:50 AM - Briggs & Stratton Stator (Greenbacks, UnLtd.)
     2. 07:00 AM - Engine start button (John Tipton)
     3. 07:12 AM - Re: Briggs & Stratton Stator (user9253)
     4. 07:20 AM - Re: Briggs & Stratton Stator (user9253)
     5. 12:04 PM - Re: Engine start button (Peter Pengilly)
     6. 12:26 PM - Re: Briggs & Stratton Stator (Robert L. Nuckolls, III)
     7. 12:33 PM - Re: Engine start button (Robert L. Nuckolls, III)
     8. 12:52 PM - Re: Engine start button (Peter Pengilly)
 
 
 


Message 1


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    Time: 05:50:41 AM PST US
    From: "Greenbacks, UnLtd." <n4zq@verizon.net>
    Subject: Briggs & Stratton Stator
    Hi Bob, I=99m hoping you could offer your opinion on whether the LS-1A or the LR3 Controller could handle the output from two fixed stators ganged together in this fashion. The application is for the Solar T62-32T turbine power plant installed in the Helicycle chopper. The original design called for only one stator which limits the charging ability. Thanks, Angier Ames Hamilton, MA 978-468-4565


    Message 2


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    Time: 07:00:01 AM PST US
    Subject: Engine start button
    From: John Tipton <jmtipton@btopenworld.com>
    Hi Guys I'm thinking of using this 'engine start' button (only the button, from the p anel shown) on the RV9 - it looks more than a simple 'push to close' wiring, am I still good to go with this item Best regards John > > http://www.ebay.co.uk/itm/Racing-Car-12V-Ignition-Switch-Panel-Engine-Star t-Push-Button-LED-Toggle-3021-/141593255100?pt=LH_DefaultDomain_3&hash=i tem20f79d9cbc > > > Sent from my iPad > > ----x--O--x----


    Message 3


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    Time: 07:12:22 AM PST US
    Subject: Re: Briggs & Stratton Stator
    From: "user9253" <fransew@gmail.com>
    The LS-1A and LR3 regulators are for alternators with a field winding. If the Briggs & Stratton alternator is a permanent magnet type (dynamo), then a permanent magnet type regulator must be used. http://www.bandc.biz/regulator14vhomebuilt.aspx You might consider using two regulators, one for each stator. The aircraft loads could be divided between the two, perhaps lighting on one and avionics on the other. The two regulators would have a common ground, but separate main buses. -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=440323#440323


    Message 4


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    Time: 07:20:09 AM PST US
    Subject: Re: Briggs & Stratton Stator
    From: "user9253" <fransew@gmail.com>
    It is not a matter of a regulator handling the alternator output, but rather the ability of a regulator to handle the aircraft load. Joe -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=440324#440324


    Message 5


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    Time: 12:04:40 PM PST US
    From: Peter Pengilly <peter@sportingaero.com>
    Subject: Re: Engine start button
    John, I've been using one of these for the last 3 years, with the illuminated bit used as a starter warning light. http://www.carbuildersolutions.com/uk/push-button-engine-start-switch Although I think I got it cheaper from somewhere else. The one you chose looked a bit complex. See also this <http://www.carbuildersolutions.com/uk/electrical-billet-aluminium-switches>. Regards, Peter On 06/04/2015 14:58, John Tipton wrote: > Hi Guys > > I'm thinking of using this 'engine start' button (only the button, > from the panel shown) on the RV9 - it looks more than a simple 'push > to close' wiring, am I still good to go with this item > > Best regards > > John > >> >> http://www.ebay.co.uk/itm/Racing-Car-12V-Ignition-Switch-Panel-Engine-Start-Push-Button-LED-Toggle-3021-/141593255100?pt=LH_DefaultDomain_3&hash=item20f79d9cbc >> >> >> Sent from my iPad >> >> ----x--O--x---- > * > > > *


    Message 6


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    Time: 12:26:39 PM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: Briggs & Stratton Stator
    At 07:49 2015-04-06, you wrote: Hi Bob, I'm hoping you could offer your opinion on whether the LS-1A or the LR3 Controller could handle the output from two fixed stators ganged together in this fashion. The application is for the Solar T62-32T turbine power plant installed in the Helicycle chopper. The original design called for only one stator which limits the charging ability. As Joe correctly points out, the alternator controllers you cited are for automotive style, wound-field alternators either designed for or modified to run externally regulated. The stators you illustrated are interesting. I'm curious as to what the magnet-ring or rings look like to work with dual coils. It appears that the two stator's leads are brought out separately . . . and further . . . offset rotationally from each other. This offers an opportunity to rectify them separately (2-phase) and combine the outputs of the rectifiers for a much smoother DC power product (the RMS ripple on rectified DC from a 3-phase automotive machine is about 5% pk-pk. 2-phase would be larger . . . ~15% but still less than single- phase at 100%. This not-quite perfect DC would then need to be regulated with something more sophisticated than the legacy rectifier-regulators used with PM alternators. A switch-mode regulator would probably fill the bill. Have you seen any numbers on the charging rates in amps before and after for upgrading to two stators? Bob . . .


    Message 7


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    Time: 12:33:27 PM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: Engine start button
    At 08:58 2015-04-06, you wrote: Hi Guys I'm thinking of using this 'engine start' button (only the button, from the panel shown) on the RV9 - it looks more than a simple 'push to close' wiring, am I still good to go with this item Best regards John' It appears that this kit comes with a relay for boosting the current handling ability of the rather Lilliputian switch. The same relay would be recommended for the switch that Peter has cited. Neither device would stand up robustly to switching loads imposed by intermittent duty starter contactors. Bob . . .


    Message 8


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    Time: 12:52:34 PM PST US
    From: Peter Pengilly <peter@sportingaero.com>
    Subject: Re: Engine start button
    Sorry not to make that clear - this switch is used to engage a regular starter relay. P On 06/04/2015 20:02, Peter Pengilly wrote: > John, > > I've been using one of these for the last 3 years, with the > illuminated bit used as a starter warning light. > > http://www.carbuildersolutions.com/uk/push-button-engine-start-switch > > Although I think I got it cheaper from somewhere else. The one you > chose looked a bit complex. > > See also this > <http://www.carbuildersolutions.com/uk/electrical-billet-aluminium-switches>. > > Regards, Peter > > > On 06/04/2015 14:58, John Tipton wrote: >> Hi Guys >> >> I'm thinking of using this 'engine start' button (only the button, >> from the panel shown) on the RV9 - it looks more than a simple 'push >> to close' wiring, am I still good to go with this item >> >> Best regards >> >> John >> >>> >>> http://www.ebay.co.uk/itm/Racing-Car-12V-Ignition-Switch-Panel-Engine-Start-Push-Button-LED-Toggle-3021-/141593255100?pt=LH_DefaultDomain_3&hash=item20f79d9cbc >>> >>> >>> Sent from my iPad >>> >>> ----x--O--x---- >> * >> >> >> * > > * > > > *




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