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Old 04-12-2018, 03:09 PM
BobTurner BobTurner is offline
Join Date: Dec 2011
Location: Livermore, CA
Posts: 5,387

GRT announced at Sun and Fun that they will be offering LPV approaches on their Hx/HXr systems when equipped with their $500 GPS. They caution that they do not have FAA approval; individual owner/operators will need to verify and document that the equipment meets the required specifications, prior to use under IFR. IMHO this is a tall order, bound to be opposed by local FSDOs. OTOH I see this as a good start in eliminating the shamefully high current price of entry-level approved boxes.
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Old 04-12-2018, 04:34 PM
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Walt Walt is offline
Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 4,873

Good for them, but good luck to anyone who thinks they can actually get approval from the FAA to acutally use that capability legally.
Walt Aronow, Dallas, TX (52F) RV7A, IO360, C/S, 1500+hrs

EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
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RV7A built 2004, 1700+ hrs
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Old 04-12-2018, 04:38 PM
Tankerpilot75 Tankerpilot75 is offline
Join Date: Jan 2015
Location: Oklahoma City, OK
Posts: 320

I the biggest problem I see immediately is what happens when someone flys an IFR approach in instrument conditions and has an accident. Will they’re insurance cover any claims resulting from the unauthorized activity?
Jim Harris, RV7A, 2nd owner, N523RM
IO-360, Hartzel CS prop, Older Aerotronics built panel Dual GRT Horizon WS, Garmin 340, 335, Dual 430s, Stratux hard wired to WS, Dynon D10A (backup EFIS)
Retired - Living the dream - And going broke!
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Old 04-12-2018, 05:21 PM
Canadian_JOY Canadian_JOY is offline
Join Date: Aug 2007
Location: Ontario, Canada
Posts: 1,797

To Jim's point... Hardware is one thing, but IFR databases are a completely different kettle of fish. Who is going to produce the approved IFR database for the GRT units, and will they take responsibility for the accuracy of their data?

I've been looking at Jepp data for my GRT HX for flight in Canada. After watching several database errors be propagated cycle after cycle, I have zero confidence in Jepp data for VFR use, let alone IFR use.
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Old 04-12-2018, 05:57 PM
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RV8iator RV8iator is offline
Join Date: Nov 2006
Location: Saint Simons Island , GA
Posts: 1,396
Default Who’s really responsible?

It is absolutely amazing how long it takes to get simple corrections to frequencies on the chart subscriptions. Here in KSSI a new unicom freq was published and NOTAMed back in January. Nary a mention on anybodies plates.

Still pays to read all the NOTAMs because Uncle Sugar sure isn’t watching out for you!
Jerry "Widget" Morris
RV 8, N8JL, 2700+ hours

VAF #818
Saint Simons Island, GA. KSSI
PIF 2008, 2009, 2010, 2011,2012, 2013, 2014, 2015, 2016, 2017, 2018.

I just wish I could afford to live the way I do
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Old 04-12-2018, 08:02 PM
BobTurner BobTurner is offline
Join Date: Dec 2011
Location: Livermore, CA
Posts: 5,387

Originally Posted by Walt View Post
Good for them, but good luck to anyone who thinks they can actually get approval from the FAA to acutally use that capability legally.
I tend to agree. But, 10 years ago, I would also have said that I'd never live to see the day the FAA allowed a non-TSO EFIS to replace a primary instrument in a 172. Or, for that matter, a non-TSO'd gps to be used in an ADSB-out box. Maybe I'm just a crazy optimist!
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Old 04-12-2018, 10:05 PM
Lars Lars is offline
Join Date: Nov 2005
Location: Davis, CA
Posts: 1,045

Bring it. A GRT employee mentioned the possibility of this to me a year ago in a phone conversation. I was excited then, more excited now. I already have the SafeFly GPS. Would gladly upgrade my Sport SX to an HXr to get the capability. I’m a VFR pilot thinking all the time about an instrument rating but discouraged by the buy in cost to add an approach certified GPS navigator. I have no interest in flying serious enroute IFR in real conditions in my RV-7, at least out west, but would love to be able to bust through coastal fog layers.
Lars Pedersen
Davis, CA
RV-7 Flying as of June 24, 2012
700+ hours as of October 1, 2018
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