Van's Air Force
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G3X magnetometer
- Thread starter n700jl
- Start date
I would be reluctant to put both in the same area even if the manufacturer allows it. IF something goes wrong like the wingtip gets bumped, you loose both your primary and redundant maganatometers. Same if they were in the same location inside the fuselage. IF some magnetic item gets near them, they BOTH read the same error. Mounted in different locations should allow different readings so that the operator knows that something is not correct.
Auburntsts
Well Known Member
The install manual is somewhat contradictory on the matter. In the distance table it says this:
"Magnetic measuring device other than another GMU 22 (e.g. installed flux
gates, even if unpowered) 2 feet (0.6 meter)"
But later on the same the page of the manual it say this:
"For installations with dual GMU 22 magnetometers, co-locating the two magnetometers close to each other in the tail or in one wing is recommended as this reduces the likelihood of heading splits or miscompares when operating on the ground in the vicinity of local magnetic anomalies."
Now assuming that he Dynon magnetometer can, for arguments sake, be considered to conform essentially to another GMU 22/44 for installation purposes, then the later passage would indicate it's not a problem.
Hopefully Team Garmin or Dynon will weigh in with a definitive answer.
"Magnetic measuring device other than another GMU 22 (e.g. installed flux
gates, even if unpowered) 2 feet (0.6 meter)"
But later on the same the page of the manual it say this:
"For installations with dual GMU 22 magnetometers, co-locating the two magnetometers close to each other in the tail or in one wing is recommended as this reduces the likelihood of heading splits or miscompares when operating on the ground in the vicinity of local magnetic anomalies."
Now assuming that he Dynon magnetometer can, for arguments sake, be considered to conform essentially to another GMU 22/44 for installation purposes, then the later passage would indicate it's not a problem.
Hopefully Team Garmin or Dynon will weigh in with a definitive answer.
Actually the Garmin instructions seem pretty clear - if you've got dual GMU-22s (G3x magnetometers), mounting them close together is ok, even recommended. Anything else should be a min of 2 feet away. It may be Ok with a Dynon magnetometer being closer than that, but I'm sure Garmin didn't test for that and therefore can't/doesn't guarantee it will work.
