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Saturday 25th May 2013
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Brainteasers Interactive Quiz #72:
Grab Those VFR Sectional Charts And Fly

FAR 91.103 says that you need "all available information" before launching on any flight. Yeah, right. Where's a PIC supposed to glean all that stuff? Surprisingly, much of what you need -- IFR or VFR -- is on the lowly VFR sectional chart. But you need to decode a few things ...

INSTRUCTIONS: Answer the questions as best you can, then click on the "Score my quiz answers" button to see your score and read the explanations. If you don't like your score the first time around, you can change some of your answers and resubmit. To get the most out of this quiz, we suggest you keep trying until you get a perfect score.

NOTE: When more than one answer is true, only the most complete correct answer will be scored as correct.

1. Your destination, The Columbia Inn Airport located just outside Pine Tree, Vt., is depicted with a magenta circle that has four "ticks" on it. What do these "ticks" tell you?
a. Controlled airspace (has a control tower)
b. Services -- fuel available
c. Uncontrolled airspace (no control tower)
d. Risk of contracting Lyme disease from ticks is high
2. A magenta-filled circle depicts Marshalltown (Iowa) Airport with two white lines indicating the runway layout. Beside one runway is a white dot, which shows the approximate position of the Elmwood VOR. (See illustration below.)
a. 10,000
b. 9069
c. 8069
d. 7069
8. Same airport as in question 7. The control tower frequency is listed with a star at the end. The star indicates:
a. Poor service as rated by IFR magazine: Five stars indicate excellent, while one star is barely safe
b. Tower operates part-time
c. Tower receives on one frequency and transmits over the VOR
d. ATIS information is delivered on tower frequency
9. Returning from the annual Antique Blender Collectors Show at Margaritaville, Texas -- where you'd been looking for a long lost shaker of salt -- you're about 10 miles northeast of Gainesville Airport, headed southwest, when you see a thick white, east-to-west line on the sectional chart crossing your projected flight path. Written inside that white line is "TAC." What is "TAC"? (See illustration below.)
a. Top number is height of the obstacle AGL in feet and the lower number is height AGL in meters (for ICAO)
b. The obstruction looks taller when coming from Tennessee.
c. The higher number is the elevation of the obstruction's base above mean sea level (MSL) and the lower number is height above ground.
d. The higher number is the elevation of the obstruction's top above mean sea level (MSL) and the lower number is height above ground.
e. Texas Air Corridor

If you enjoyed taking this interactive quiz and would like to see more like it, go to the AVweb Brainteaser page. And if you thought it was unfair, confusing, or a waste of time, we'd like you to tell us that, too. And if you have an idea for a subject that you think would make a good future Brainteaser quiz, be sure to let us know.

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