---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Mon 12/26/11: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:23 AM - Re: Relays (user9253) 2. 11:03 AM - Garmin 696 Data Out (tomcostanza) 3. 11:14 AM - Re: Garmin 696 Data Out (Kenneth Melvin) 4. 07:43 PM - Dynon Skyview Airspeed Calibration... (Matt Dralle) 5. 08:43 PM - Re: Dynon Skyview Airspeed Calibration... (Jared Yates) 6. 09:06 PM - Re: Dynon Skyview Airspeed Calibration... (Bill Bradburry) ________________________________ Message 1 _____________________________________ Time: 08:23:17 AM PST US Subject: AeroElectric-List: Re: Relays From: "user9253" > Do I need to add the battery relay? I asked a similar question here: http://forums.matronics.com/viewtopic.php?t=87274&sid=3724253c38f733fb3dfb539a40ee396b And the answer is, "It depends." The majority of aircraft have both a master battery contactor and a starter contactor connected in series. If the starter contactor ever fails in the closed position, the circuit can still be opened with the battery contactor. The likelihood of that failure mode occurring is, in Bob's words, "exceedingly rare". Weight and electrical energy can be saved by not installing a battery contactor. A 30-amp automotive relay can be used as a mini-master to remotely control all electrical power leaving the battery (except for starting current). That is a nice feature to have in case of a forced landing. Since the Rotax dynamo is rated at only 18 amps, a 20 amp toggle switch can be used as a mini-master with the disadvantage of not being able to remotely shut off power at the battery. Joe -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=361671#361671 ________________________________ Message 2 _____________________________________ Time: 11:03:45 AM PST US Subject: AeroElectric-List: Garmin 696 Data Out From: "tomcostanza" Happy holidays all. I'm using a Garmin 696 and want to use the "data out" to drive a TruTrak autopilot, and an ACK ELT. Does anyone know if I can just parallel all these data lines together, or do I need a buffer? Thanks. -------- Clear Skies, Tom Costanza Read this topic online here: http://forums.matronics.com/viewtopic.php?p=361677#361677 ________________________________ Message 3 _____________________________________ Time: 11:14:54 AM PST US Subject: Re: AeroElectric-List: Garmin 696 Data Out From: Kenneth Melvin I can confirm that the 496 will drive at least 3 units, including a TruTrak autopilot. Kenneth Melvin On Dec 26, 2011, at 10:59 AM, tomcostanza wrote: > > Happy holidays all. > > I'm using a Garmin 696 and want to use the "data out" to drive a TruTrak autopilot, and an ACK ELT. Does anyone know if I can just parallel all these data lines together, or do I need a buffer? > > Thanks. > > -------- > Clear Skies, > Tom Costanza > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=361677#361677 > > > > > > > > > > ________________________________ Message 4 _____________________________________ Time: 07:43:08 PM PST US From: Matt Dralle Subject: AeroElectric-List: Dynon Skyview Airspeed Calibration... Dear Listers, I've been flying the new 10" Dynon Skyview in the RV-6 for a few weeks now and it seems like the airspeed is reading maybe 10mph fast. The GS always reads 10mph or more slower than the True airspeed, no matter which way I fly with respect to the current wind. Looking through the configuration options on the Skyview, I'm not seeing parameters to calibrate the airspeed. If the airspeed were *slow* compared to the GS, I could envision making adjustments to the Pitot tube to get it in better alignment with slipstream. But *fast* is a head scratcher. If there's no electronic configuration parameters to adjust, what do you do? Are there Pitot line "attenuators" like for RF in coax? ;-) Matt - Matt "Red Dawg" Dralle RV-8 #82880 N998RV "Ruby Vixen" http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel Status: 170+ Hours TTSN - Rebuilding Fuselage After Landing Mishap... RV-6 #20916 N360EM "The Flyer" http://www.mattsrv6.com - Matt's RV-6 Revitalization Log Status: 42+ Hours Since Purchase - Upgrades Complete; Now In Full Flyer Mode ________________________________ Message 5 _____________________________________ Time: 08:43:54 PM PST US Subject: Re: AeroElectric-List: Dynon Skyview Airspeed Calibration... From: Jared Yates Perhaps it is an issue with the way it is calculating tas. Do you have an ias indication? If so perhaps you could use a flight computer to verify. Have the Dynon folks had any input? On Dec 26, 2011, at 22:39, Matt Dralle wrote: > > Dear Listers, > > I've been flying the new 10" Dynon Skyview in the RV-6 for a few weeks now and it seems like the airspeed is reading maybe 10mph fast. The GS always reads 10mph or more slower than the True airspeed, no matter which way I fly with respect to the current wind. Looking through the configuration options on the Skyview, I'm not seeing parameters to calibrate the airspeed. If the airspeed were *slow* compared to the GS, I could envision making adjustments to the Pitot tube to get it in better alignment with slipstream. But *fast* is a head scratcher. If there's no electronic configuration parameters to adjust, what do you do? Are there Pitot line "attenuators" like for RF in coax? ;-) > > Matt > > - > Matt "Red Dawg" Dralle > > RV-8 #82880 N998RV "Ruby Vixen" > http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log > http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log > http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel > Status: 170+ Hours TTSN - Rebuilding Fuselage After Landing Mishap... > > RV-6 #20916 N360EM "The Flyer" > http://www.mattsrv6.com - Matt's RV-6 Revitalization Log > Status: 42+ Hours Since Purchase - Upgrades Complete; Now In Full Flyer Mode > > > > > ________________________________ Message 6 _____________________________________ Time: 09:06:59 PM PST US From: "Bill Bradburry" Subject: RE: AeroElectric-List: Dynon Skyview Airspeed Calibration... The problem is with your static port. Check out this link. http://www.kilohotel.com/rv8/rvlinks/ssec.html Bill B -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Matt Dralle Sent: Monday, December 26, 2011 10:39 PM Subject: AeroElectric-List: Dynon Skyview Airspeed Calibration... Dear Listers, I've been flying the new 10" Dynon Skyview in the RV-6 for a few weeks now and it seems like the airspeed is reading maybe 10mph fast. The GS always reads 10mph or more slower than the True airspeed, no matter which way I fly with respect to the current wind. Looking through the configuration options on the Skyview, I'm not seeing parameters to calibrate the airspeed. If the airspeed were *slow* compared to the GS, I could envision making adjustments to the Pitot tube to get it in better alignment with slipstream. But *fast* is a head scratcher. If there's no electronic configuration parameters to adjust, what do you do? Are there Pitot line "attenuators" like for RF in coax? ;-) Matt - Matt "Red Dawg" Dralle RV-8 #82880 N998RV "Ruby Vixen" http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel Status: 170+ Hours TTSN - Rebuilding Fuselage After Landing Mishap... RV-6 #20916 N360EM "The Flyer" http://www.mattsrv6.com - Matt's RV-6 Revitalization Log Status: 42+ Hours Since Purchase - Upgrades Complete; Now In Full Flyer Mode ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.