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#1
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Which would draw more juice? A glass display Dynon Efis-D100 or regular style "Steam Gauges" that are electric.
I'm wondering if a Glass display like Dynon's (or others), with all the
hook-ups,would draw more or less Amps then say,individually mounted analog (electric) gauges? We are talking instrument for instrument here,for example a standard "six pack". Any ideas? Thanks in advance |
#2
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Which would draw more juice? A glass display Dynon Efis-D100or regular style "Steam Gauges" that are electric.
Poorly phrased question... in a light general aviation plane the items
that you are replacing with a glass display tend not to be powered at all by electricity with the sole exception of the turn coordinator. Altimeter: functions mechanically by changing ambient pressure Airspeed Indicator: functions mechanically by changes in pitot probe pressure Vertical Speed Indicator: again.. mechanically driven by pressure differences across an orfice. Artificial Horizon/Attitude Indicator: Gyroscopic indicator, either driven by vacuum from a vacuum pump, or electric in the higher end models Directional Gyro/GyroCompass: Gyroscopic Indicator, either driven by vacuum or electric...as above. Turn Coordinator: in most GA planes tends to be electric, but vacuum models exist in older platforms. Some of the devices for sale new list power draws in the 4-8 amp range but I cannot speak with authority. All the little gauges that you can replace with efis-like glass displays are all essentially voltmeters that operate on milliamps of current, so their power draw is negligible. The dynon d-100 uses 12 watts in normal ops and 24 watts if charging its optional internal battery. In a 12 volt plane that is 1 and 2 amps respectively. If you had a plane with ALL gyros powered by vacuum, then in theory the glass could be a step towards greater power draw, however negligble 1 amp is.. but by replacing even one electric gryo you may be dropping the power draw to 25% or more of previous levels. I dont know what you mean by "all the hookups".. the back of the dynon has a couple plugs for tubing (pitot static) and ONE 25 pin connector that goes to a power lead, a ground, a computer serial port for software upgrades, a buss for communicating with other Dynons, and a couple wires that CAN go to an external magnetometer and temp probe. All solid state, low power draw. Latest versions can utilize the serial port connection to take signal data and display VOR/ILS data now.. and again.. most of these signals are millivolt potentials and milliamp current. The back of my King GPS has a 25 pin connector and 37 pin connector, with wires goin everywhere.. The nav coms have oodles (at least 40-50) of wires coming out the back end as well. In comparison, the Dynon is likely to be the EASIEST device to wire into the whole plane... and likely draw the least current of any of my panel mounted electrical devices. Blue Skies, Dave wrote: I'm wondering if a Glass display like Dynon's (or others), with all the hook-ups,would draw more or less Amps then say,individually mounted analog (electric) gauges? We are talking instrument for instrument here,for example a standard "six pack". Any ideas? Thanks in advance |
#3
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Which would draw more juice? A glass display Dynon Efis-D100 or regular style "Steam Gauges" that are electric.
Dave,
I'll take the question one step further. What would the weight differnce be? Lou |
#4
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Which would draw more juice? A glass display Dynon Efis-D100or regular style "Steam Gauges" that are electric.
Lou wrote:
Dave, I'll take the question one step further. What would the weight differnce be? Lou No freakin idea.. You can get the specs for a Dynon from www.dynonavionics.com You will have to find the individual weights of all the components you are replacing on your own. |
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