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Sunday 7th September 2008
Brainteasers
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Jul. 12, 2007

Brainteasers
Interactive Quiz #122:
Welcome To Brainteaser Refresher Camp

Camp Wannaflybettah is open to pilots who obey a few camp rules: Don't drink from the seaplane pond, believe anything in the pilots' lounge or swallow the occasional red herring in the following questions.

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. The answers are assumed to apply within the United States unless otherwise noted.

1. Good morning, campers! We begin each day's flight activities at dawn with a level, 30-degree-banked, clearing turn. In this maneuver, we'll make a 90-degree change in heading as we scan for traffic beneath the raised wing. We then roll smoothly into a coordinated turn in the opposite direction, while breathing deep the aroma of the piney woods below. What causes this single-engine, piston airplane to turn?
a. Yaw from rudder input
b. Adverse aileron drag
c. Change in direction of lift
d. Asymmetrical thrust
2. Camp Wannaflybettah motto: "Anything worth doing is worth overdoing." So, let's explore an airplane's overbanking tendency. As a pilot banks from shallow to medium to a steeper turn, the outside wing's airspeed (_____) in relation to the inside wing and produces more (_____), which is controlled by use of (_____). Fill in those annoying blanks.
a. increases, lift, ailerons
b. decreases, lift, ailerons
c. stabilizes, drag, rudder
d. increases, thrust, elevator
3. Somewhere in the aviation camp's activities room is John Gillespie Magee Jr.'s WWII poem, High Flight, about slipping surly bonds. The term "slip" is casually tossed about in pilot circles but rarely is it defined in terms of what the pilot feels when a slip occurs. Roll into a turn and complete this thought: A slip is easily identified when a pilot ...
a. Feels a sideways force to the inside of the turn.
b. Feels a sideways force to the outside of the turn.
c. Feels a force pulling straight down into the seat.
d. Feels the engine surge as fuel slips away from the carburetor float.
4. Slips are loosely divided into "sideslips" and "forward slips." Which definition best describes a "sideslip"?
a. A slip in which the airplane's longitudinal axis is at an angle to its flight path.
b. A slip in which the airplane's longitudinal axis remains parallel to the original flight path.
c. The maximum slip an aircraft is capable of performing due to rudder travel limits.
d. A slip in which the airplane's lateral axis remains parallel to the original flight path.
5. Imagine a properly-rigged, 30-year-old Cessna 172 (rare). In a coordinated, level, medium-bank turn (30-45 degrees), the pilot rolls into the turn with aileron and rudder. You know from your mastery of Question #1 what caused the turn. In establishing the bank angle, ailerons are deflected -- one up and one down. As desired bank angle is reached ailerons, are neutralized -- no need to bank any further. To remain coordinated (ball in the center), rudder pressure should be:
a. Held constant to overcome adverse aileron yaw.
b. Changed to opposite to the turn.
c. Increased in direction of the turn.
d. Relaxed.
6. Hey! Doncha need elevator input in a turn? Yes, especially as bank increases, up-elevator pressure should be added. Once your bank angle is established (say, 45-degrees), that up-elevator pressure should be relaxed to hold altitude.
a. True
b. False
7. Fill in the blanks: "When angle of bank is held constant, a slower airspeed will result in a (_____) turn radius and (_____) turn rate." Hint: Think back to Question # 2, but don't think too long. Fly your instincts, Luke.
a. smaller, greater
b. larger, greater
c. smaller, lower
d. greater, lower
8. Let's modify the previous scenario. We'll hold the airspeed constant and change our angle of bank. What happens to the turn radius? Complete this statement: When airspeed is held constant ...
a. A smaller/shallower angle of bank will result in a smaller turn radius and a greater turn rate.
b. A larger angle of bank will result in a smaller turn radius and a greater turn rate.
c. A larger angle of bank will result in a larger turn radius but a lower turn rate.
d. A steeper angle of bank will result in a smaller turn radius and a lower turn rate.
9. Nothing makes a camp CFI-counselor apply for a FSDO desk job faster than riding with someone who can't fly a coordinated traffic pattern close to the ground. Slips to lose altitude are fine -- routine, even -- for most tailwheel pilots. But when a pilot overshoots the final and desperately tries to rudder the airplane around the turn, rather than bank in a coordinated turn, things get ugly. When the airplane's tail takes a path outside the path of the nose during the turn, it's called a:
a. slipstream
b. slide
c. skid
d. segue
e. Yikes!
10. Let's conclude our flight with a smooth landing into a crosswind. You've held aileron into the wind plus added the proper amount of opposite rudder to keep the nose straight. Your use of elevator in the round-out was ... well, let's say campers will be talking around the campfire about your performance for years to come because it was so good. As you roll out, the airplane decelerates (it's hoped) and the ailerons become less effective, so you should:
a. Decrease aileron input.
b. Increase aileron input.
c. Neutralize ailerons.
d. Transition to opposite aileron input.