---------------------------------------------------------- Avionics-List Digest Archive --- Total Messages Posted Tue 10/19/04: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:12 AM - narco radios (Arnold de Brie) 2. 04:01 AM - Re: Always on avionics (Chuck Jensen) 3. 09:54 AM - Re: Re: Always on avionics (Leo J. Corbalis) 4. 03:26 PM - Re: Re: Always on avionics (Trampas) 5. 10:53 PM - Re: Re: Always on avionics (John Rippengal) 6. 11:51 PM - Re: Re: Always on avionics (Ron Davis) ________________________________ Message 1 _____________________________________ Time: 12:12:52 AM PST US From: "Arnold de Brie" Subject: Avionics-List: narco radios --> Avionics-List message posted by: "Arnold de Brie" Listers I have recovered from my damaged Lancair one Narco MK12D+ with indicator and the 150 transponder Anyone interested contact me off list Arnold de Brie The Netherlands ________________________________ Message 2 _____________________________________ Time: 04:01:40 AM PST US From: Chuck Jensen Subject: Avionics-List: RE: Always on avionics --> Avionics-List message posted by: Chuck Jensen Isn't the admonishment, to never start the plane with the electronics turned on, contrary to the threads that hold that the new electronics are pretty impervious to the spikes associated with startup, or did I miss something? Or just a difference of opinion? Chuck -----Original Message----- From: owner-avionics-list-server@matronics.com [mailto:owner-avionics-list-server@matronics.com]On Behalf Of Brian Kraut Subject: Always on avionics --> Avionics-List message posted by: "Brian Kraut" You should never start the plane with your electronics turned on. You get a big inductive spike when ou do that. Brian Kraut Engineering Alternatives, Inc. www.engalt.com -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com]On Behalf Of Matt Luthi Subject: AeroElectric-List: when running my new B&C starter the lights go out.. --> AeroElectric-List message posted by: "Matt Luthi" I just connected my new B&C starter motor to the electrical system and tested it without the flywheel installed. When I engage the starter motor all my gadgets (GRT EFIS, EIS, Skymap IIIc GPS) don't like this very much and reboot. It looks to me as if the bus voltage drops too much for them to keep running. This is only just for the moment when I engage the starter. I kept it running while it ran all the electronic gizmos come up again fine. 1. I have a new Odyseey PC680 battery, charged, indicating 12.8V 2. The EFIS and EIS are always on when the master switch is engaged (no avionics master) 3. I followed the "all electric aircraft on a budget" approach religiously. Questions: 1. Is this "normal" behaivour? 2. I have dual Lightspeed ignition without a backup battery - I have the SD-8 PM Standby Alternator for redundancy but now after I have read the posts about the "kickback" problem experienced on EI systems during cranking and resulting low voltage I am not so sure that this is a good setup for my starter motor. Should I wire a backup battery with a diode to one of the LSE units? d entirely through the Contributions ________________________________ Message 3 _____________________________________ Time: 09:54:54 AM PST US From: "Leo J. Corbalis" Subject: Re: Avionics-List: RE: Always on avionics --> Avionics-List message posted by: "Leo J. Corbalis" I idiotproofed (no guessing) my electronics by wiring a 30-40 amp ice cube relay in paralell with the starter relay. I used the NC contacts so that when I start the engine all the electronics are DISCONNECTED. If you accidentally hit the start switch with the engine running this will really save your wallet ! Leo Corbalis ----- Original Message ----- From: "Chuck Jensen" Subject: Avionics-List: RE: Always on avionics > --> Avionics-List message posted by: Chuck Jensen > > Isn't the admonishment, to never start the plane with the electronics turned > on, contrary to the threads that hold that the new electronics are pretty > impervious to the spikes associated with startup, or did I miss something? > Or just a difference of opinion? > > Chuck > > -----Original Message----- > From: owner-avionics-list-server@matronics.com > [mailto:owner-avionics-list-server@matronics.com]On Behalf Of Brian > Kraut > To: aeroelectric-list@matronics.com > Subject: Always on avionics > > > --> Avionics-List message posted by: "Brian Kraut" > > You should never start the plane with your electronics turned on. You get a > big inductive spike when ou do that. > > Brian Kraut > Engineering Alternatives, Inc. > www.engalt.com > > -----Original Message----- > From: owner-aeroelectric-list-server@matronics.com > [mailto:owner-aeroelectric-list-server@matronics.com]On Behalf Of Matt > Luthi > To: aeroelectric-list@matronics.com > Subject: AeroElectric-List: when running my new B&C starter the lights > go out.. > > > --> AeroElectric-List message posted by: "Matt Luthi" > > > I just connected my new B&C starter motor to the electrical system and > tested it without the flywheel installed. When I engage the starter motor > all my gadgets (GRT EFIS, EIS, Skymap IIIc GPS) don't like this very much > and reboot. It looks to me as if the bus voltage drops too much for them to > keep running. This is only just for the moment when I engage the starter. I > kept it running while it ran all the electronic gizmos come up again fine. > > 1. I have a new Odyseey PC680 battery, charged, indicating 12.8V > 2. The EFIS and EIS are always on when the master switch is engaged (no > avionics master) > 3. I followed the "all electric aircraft on a budget" approach religiously. > > Questions: > 1. Is this "normal" behaivour? > 2. I have dual Lightspeed ignition without a backup battery - I have the > SD-8 PM Standby Alternator for redundancy but now after I have read the > posts about the "kickback" problem experienced on EI systems during cranking > and resulting low voltage I am not so sure that this is a good setup for my > starter motor. Should I wire a backup battery with a diode to one of the LSE > units? > > > d entirely through the Contributions > > ________________________________ Message 4 _____________________________________ Time: 03:26:35 PM PST US From: "Trampas" Subject: RE: Avionics-List: RE: Always on avionics --> Avionics-List message posted by: "Trampas" You guys know that the electronics can be designed such that they operate while starting the engine. Regards, Trampas www.sterntech.com -----Original Message----- From: owner-avionics-list-server@matronics.com [mailto:owner-avionics-list-server@matronics.com] On Behalf Of Leo J. Corbalis Subject: Re: Avionics-List: RE: Always on avionics --> Avionics-List message posted by: "Leo J. Corbalis" I idiotproofed (no guessing) my electronics by wiring a 30-40 amp ice cube relay in paralell with the starter relay. I used the NC contacts so that when I start the engine all the electronics are DISCONNECTED. If you accidentally hit the start switch with the engine running this will really save your wallet ! Leo Corbalis ----- Original Message ----- From: "Chuck Jensen" Subject: Avionics-List: RE: Always on avionics > --> Avionics-List message posted by: Chuck Jensen > > Isn't the admonishment, to never start the plane with the electronics turned > on, contrary to the threads that hold that the new electronics are pretty > impervious to the spikes associated with startup, or did I miss something? > Or just a difference of opinion? > > Chuck > > -----Original Message----- > From: owner-avionics-list-server@matronics.com > [mailto:owner-avionics-list-server@matronics.com]On Behalf Of Brian > Kraut > To: aeroelectric-list@matronics.com > Subject: Always on avionics > > > --> Avionics-List message posted by: "Brian Kraut" > > You should never start the plane with your electronics turned on. You get a > big inductive spike when ou do that. > > Brian Kraut > Engineering Alternatives, Inc. > www.engalt.com > > -----Original Message----- > From: owner-aeroelectric-list-server@matronics.com > [mailto:owner-aeroelectric-list-server@matronics.com]On Behalf Of Matt > Luthi > To: aeroelectric-list@matronics.com > Subject: AeroElectric-List: when running my new B&C starter the lights > go out.. > > > --> AeroElectric-List message posted by: "Matt Luthi" > > > I just connected my new B&C starter motor to the electrical system and > tested it without the flywheel installed. When I engage the starter motor > all my gadgets (GRT EFIS, EIS, Skymap IIIc GPS) don't like this very much > and reboot. It looks to me as if the bus voltage drops too much for them to > keep running. This is only just for the moment when I engage the starter. I > kept it running while it ran all the electronic gizmos come up again fine. > > 1. I have a new Odyseey PC680 battery, charged, indicating 12.8V > 2. The EFIS and EIS are always on when the master switch is engaged (no > avionics master) > 3. I followed the "all electric aircraft on a budget" approach religiously. > > Questions: > 1. Is this "normal" behaivour? > 2. I have dual Lightspeed ignition without a backup battery - I have the > SD-8 PM Standby Alternator for redundancy but now after I have read the > posts about the "kickback" problem experienced on EI systems during cranking > and resulting low voltage I am not so sure that this is a good setup for my > starter motor. Should I wire a backup battery with a diode to one of the LSE > units? > > > d entirely through the Contributions > > ________________________________ Message 5 _____________________________________ Time: 10:53:42 PM PST US From: "John Rippengal" Subject: Re: Avionics-List: RE: Always on avionics --> Avionics-List message posted by: "John Rippengal" True enough but the only thing that slightly worries me is that I notice that all modern autos switch off the radios when starting. Are they being over-cautious? John Rippengal > --> Avionics-List message posted by: "Trampas" > > You guys know that the electronics can be designed such that they operate > while starting the engine. > > Regards, > Trampas > www.sterntech.com ________________________________ Message 6 _____________________________________ Time: 11:51:18 PM PST US From: "Ron Davis" Subject: Re: Avionics-List: RE: Always on avionics --> Avionics-List message posted by: "Ron Davis" There's only one ACCESSORY circuit on a car and some of the loads on it are substancial. I believe the accessories are swithced off to reduce the load on the battery in the START mode.