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Archive for the 'GPS' Category

SBAS

Wednesday, March 15th, 2017

I was reading the Airplane Flight Manual Supplement for my Garmin 430W and ran across this acronym. GPS/SBAS TSO-C146a Class 3 Operation The GNS complies with AC 20-138A and has airworthiness approval for navigation using GPS and SBAS (within the coverage of a Satellite Based Augmentation System complying with ICAO Annex 10) for IFR en […]

GBAS and GLS

Wednesday, March 15th, 2017

I had seen these terms before but I forgot what they meant. TL;DR, they are a new system of ground based augmentation that will improve navigation performance in the immediate vicinity of an airport. Currently only Newark and Houston-Hobby have the systems installed and the required equipment is installed on some Boeing aircraft flown by […]

Magnetic Variation

Wednesday, March 1st, 2017

This section of the AIM describes the reason that you may see differences between charted courses and the course on the PBN (Performance Based Navigation e.g. GPS and WAAS) system. Basically, the system uses true north to determine the course and then makes a correction to display magnetic course. It uses published airport or navaid […]

Powering your iPad in the cockpit.

Monday, May 21st, 2012

Keeping your iPad charged without introducing noise in your headsets can be challenging. Not all chargers work in all aircraft. I recently bought two PowerGen 7.2 Amp (36 Watt) Tri-Port USB chargers. They charge my iPad Pro in both the 12 volt Cherokee and 24 volt Cessna 210. I attached Monoprice cables to the panel […]

VOR Radials and Magnetic Variation

Tuesday, May 26th, 2009

Get out a sectional and look at the radials that define Victor airways between two VORs. (Note the radial is usually printed just outside the compass rose although sometimes other objects on the chart are in the way and it is inside the compass rose.) Frequently, the two radials are reciprocals, but often they differ—sometimes […]

Garmin GNS 430W/530W—Basics

Tuesday, March 18th, 2008

We had some down time on our Cessna T210 when I removed the leaking Aux Fuel Pump and the mis-behaving Vacuum Regulator and sent them off to be refurbished. Since the plane was in the hangar, rather than the shop, I took advantage of the downtime to do some real hangar flying with the Garmin […]

Garmin GPSMAP 496—Notes

Saturday, March 15th, 2008

I upgraded to the Garmin GPSMAP® 496 from the Garmin GPSMAP®295 a while back and it was easy to use the new GPS since the navigation is the same and most of the commands are basically the same. There are a few things that are new on the 496 and a few things that I […]

Garmin GNS 430—Notes

Friday, January 4th, 2008

The good way to learn to use the Garmin 430/530 is to read through the manual with the simulator open on your laptop (Windows only unfortunately). It took me a good 4 hours to get thru the manual, but I’m a bit compulsive about things like that. Then fly to a nearby airport with a […]

GPS

Thursday, November 29th, 2007

AOPA has a good course on GPS usage. Garmin has a simulator that you can use to explore the features of their GPS products. GPS has a 100′ horizontal accuracy. If augmented with WAAS it has 10′ horizontal accuracy. The WAAS capability also allows approaches with vertical guidance—LPV and LNAV/VNAV. LPV—Localizer performance with vertical guidance. […]


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