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Quiz: 6 Questions To See How Much You Know GPS Navigation

Boldmethod

Let's see how you do...


  1. 1) You are flying in a Beechcraft Baron from Waukegan, IL (KUGN) to South Haven, Michigan (KLWA). You are on an IFR flight plan in IMC navigating to KLWA via GPS direct. The winds are favoring runway 23, so you elect to fly the VOR approach to that runway. If you wanted to, can you shoot the VOR approach using GPS?
    View Jeppesen Chart
    View FAA Chart

    AIM 1-2-3(c)(5) states that you are allowed to shoot a VOR approach with the GPS as long as you monitor the VOR on the final approach segment.

    AIM 1-2-3(c)(5) states that you are allowed to shoot a VOR approach with the GPS as long as you monitor the VOR on the final approach segment.

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  2. 2) RAIM, or Reciever Autonomous Integrity Monitoring, is a GPS system that can detect faulty satellites and automatically switch to a more reliable one if needed. How many satellites are required for RAIM? What about if a satellite is brought offline due to poor signals?

    You need a total of 5 satellites in view in order for RAIM to be functioning correctly. Technically, you need a 6th satellite if the 5th satellite is to be replaced due to a faulty signal.

    You need a total of 5 satellites in view in order for RAIM to be functioning correctly. Technically, you need a 6th satellite if the 5th satellite is to be replaced due to a faulty signal.

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  3. 3) If you turn on your aircraft and it says "WAAS Unavailable" on your GPS, what restrictions apply to you when flying a T-route to an airport with a GPS approach?

    You are able to fly a T- or a Q-route without WAAS available. When shooting the GPS approach, you must fly it to the LNAV minimums without the use of the glide path. 

    You are able to fly a T- or a Q-route without WAAS available. When shooting the GPS approach, you must fly it to the LNAV minimums without the use of the glide path. 

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  4. 4) What is the difference between being half scale deflection of the CDI at 40 nm from the airport versus 25 nm from the airport when using a T-route to get to your destination?

    At distances greater than 30 nm from the destination, full-scale deflection is 5 nm off course. Within 30 nm from the destination, full-scale deflection is 1 nm. So, half scale deflection would be half of these values.

    At distances greater than 30 nm from the destination, full-scale deflection is 5 nm off course. Within 30 nm from the destination, full-scale deflection is 1 nm. So, half scale deflection would be half of these values.

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  5. 5) How many segments are there in the GPS system?

    There are three: the space segment, the user segment, and the control segment.

    There are three: the space segment, the user segment, and the control segment.

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  6. 6) You are flying a Cessna 172 (GPS equipped but not WAAS equipped) from Cedar Rapids, IA (KCID) to Iowa Falls, IA (KIFA) in IMC. The weather at the destination calls for you to plan an alternate. The approaches at KIFA include RNAV (GPS) 31 and RNAV (GPS) 13. The airport that looks like it would be the best alternate is Storm Lake Municipal (KSLB). The approaches at KSLB include RNAV (GPS) 17 and RNAV (GPS) 35. Are you OK to file this route with the chosen alternate?

    AIM 1-2-3 states that if you have an aircraft that is GPS equipped but not WAAS equipped, you can plan to fly a GPS based approach at either the destination or the alternate but not both. So, in this scenario, you need to choose a different alternate that has an approach other than a GPS based approach.

    AIM 1-2-3 states that if you have an aircraft that is GPS equipped but not WAAS equipped, you can plan to fly a GPS based approach at either the destination or the alternate but not both. So, in this scenario, you need to choose a different alternate that has an approach other than a GPS based approach.

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Better luck next time...

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You know your stuff!

You scored %. Keep it up.

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Jepp-VOR-23 X
FAA-VOR-23 X

Corey Komarec

Corey is an Embraer 175 First Officer for a large regional airline. He graduated as an aviation major from the University of North Dakota, and he's been flying since he was 16. You can reach him at corey@boldmethod.com.

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