WAAS/GPS
Flying a C172SP with G1000, WAAS. No RAIM check required on the ground. But you are supposed to check for WAAS NOTAMS. The G1000 verifies WAAS integrity prior to the FAF. You then get an indication of...
View ArticleWhere specifically in an airplane’s documents can I see if it is equipped...
Just having a bit of trouble finding this stuff. Bonus question… where in the regs does it say that you don’t have to do a RAIM check with WAAS? I can make assumptions, but I haven’t found anything...
View ArticleAuto Pilot LPV Flightpath Intercept From Below
Hi All: I am somewhat new to LPV approaches (GTN 750 coupled to 800 IFCS). My IFCS (Integrated Flight Control System) like most autopilots, I believe, require the GS/Flightpath to be intercepted from...
View ArticleWhat does the “CH” and number in the WAAS box on RNAV chart mean?
And why does it matter for the approach?
View Article‘Non-WAAS’ GPS units with vertical guidance for single engine and light twin...
Are ‘non-WAAS’ GPS units with approach vertical guidance typically installed in single engine or light twin airplanes or can these units only be found in larger airplanes? I am specifically referring...
View ArticleLPV, LP, LVAV/VNAV CDI sensitivities
Reference is made to the question on “LPV CDI sensitivity” posted on Aug 27, 2016. Could somebody please answer the following questions: LPV Sensitivity I understand only partially how the LPV CDI...
View ArticleWAAS and 61.65 three approaches
For aircraft with only GPS WAAS installed as the sole means of navigation (therefore no VOR, no LOC/GS). For the 250 NM cross country where it says (C) Three different kinds of approaches with the use...
View ArticleRAIM vs WAAS again
Despite ever thing I have been able to read on RAIM and WAAS, I am still confused on their interaction or exclusion in a GPS receiver. RAIM has to built into a GPS receiver as part of it’s software...
View ArticleWAAS and FDE confusion
After trying to read through AC 20-138D this is what I’ve gathered: TSO-C129 and C196 are non-WAAS and require alternate navigation TSO-C145 and C146 are WAAS equipped and do not require alternate...
View ArticleTrying to understand RAIM better (or at all)
I am trying to do a better job of explaining RAIM to my students. Despite reading several articles, include one from Garmin, about what it is and what it does, I get a lot of contradictory and...
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