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There was a cancelled, very large proposed GPS outage (NOTAM) centered on NAWS China Lake which specifically warned that the EMB-505 Phenom 300 business jet spe

by a-no-n 10y ago

There was a cancelled, very large proposed GPS outage (NOTAM) centered on NAWS China Lake which specifically warned that the EMB-505 Phenom 300 business jet specifically should avoid operating in the Western US during this mysterious GPS outage/jamming test event.[0] Pressure from the AOPA and others likely contributed to the scrubbing of this would-be very large outage.[1] It turns out that the EMB-505 300 lateral stability at high speed is extremely dependent on GPS. Folks on the forums suspect the root cause is related to the Garmin GRS 77/GMU 44 AHRS part of the Garmin Prodigy G3000 package.[2,3] 0. https://www.faasafety.gov/files/notices/2016/Jun/CHLK_16-08_GPS_Flight_Advisory.pdf https://www.faasafety.gov/files/notices/2016/Jun/CHLK_16-08_... 1. http://www.ainonline.com/aviation-news/business-aviation/2016-06-10/aopa-military-scrubs-planned-gps-interference-testing http://www.ainonline.com/aviation-news/business-aviation/201... 2. http://static.garmin.com/pumac/778_InstallationManual.pdf http://static.garmin.com/pumac/778_InstallationManual.pdf 3. http://static.garmin.com/pumac/1152_GRS77_GMU44TroubleshootingReference.pdf http://static.garmin.com/pumac/1152_GRS77_GMU44Troubleshooti...

kaffeemitsahne 10y ago
What would be the purpose of this outage?
- colechristensen 10y ago
  "China Lake is the United States Navy's largest single landholding, representing 85 percent of the Navy’s land for weapons and armaments research, development, acquisition, testing and evaluation (RDAT&E) use and 38 percent of the Navy’s land holdings worldwide. In total, its two ranges and main site cover more than 1,100,000 acres (4,500 km2), an area larger than the state of Rhode Island."
- deleted 10y ago
  [deleted]
- chiph 10y ago
  Possibly to ensure that weapons and weapon systems that use GPS will still function in it's absence.
- jonknee 10y ago
  It's classified, but they may have been testing GPS jamming equipment or other rf tech that has that as a side effect.

by a-no-n 10y ago

kaffeemitsahne 10y ago

What would be the purpose of this outage?

colechristensen 10y ago
"China Lake is the United States Navy's largest single landholding, representing 85 percent of the Navy’s land for weapons and armaments research, development, acquisition, testing and evaluation (RDAT&E) use and 38 percent of the Navy’s land holdings worldwide. In total, its two ranges and main site cover more than 1,100,000 acres (4,500 km2), an area larger than the state of Rhode Island."
deleted 10y ago
[deleted]
chiph 10y ago
Possibly to ensure that weapons and weapon systems that use GPS will still function in it's absence.
jonknee 10y ago
It's classified, but they may have been testing GPS jamming equipment or other rf tech that has that as a side effect.