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RC Airplanes Trivia Quiz

How much do you know about building and flying model airplanes?

A multiple-choice quiz by brownknows. Estimated time: 5 mins.

Author
brownknows

Time
5 mins

Type
Multiple Choice

Quiz #
226,261

Updated
Dec 03 21

# Qns
10

Difficulty
Tough

Avg Score
6 / 10

Plays
1223

Last 3 plays: crazydongle (3/10), Guest 173 (6/10), camhammer (4/10).

One at a Time - Single Page - Timed Game

Question 1 of 10

1. In the US, what is the governing body of the model airplane hobby? Hint

Aircraft Model Flyers of America (AMFA)

Sport Flyers Associations (SFA)

Academy of Model Aeronautics (AMA)

Model Aircraft Association (MAA)

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Question 2 of 10

2. Which is not a battery type used for flying park flyers? Hint

Nickel Metal Hydride (NiMH)

Lithium Polymer (LiPo)

Nickel Cadmuim (NiCad)

Silver Oxide (SOx)

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Question 3 of 10

3. How many channels are available for FM model aircraft radios in the US? Hint

100

4. Each radio has a number of discrete outputs, called channels, that control the various functions of the plane. How many channels are required to fly a powered model that has 'full house' controls? Hint

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Question 5 of 10

5. Glow-powered aircraft require a special fixture in the fuel tank that keeps the fuel supply inlet submerged in the fuel (so it does not pull air into the fuel line) regardless of the plane's attitude. What is the name of this device? Hint

Fuel injector

Magneto

Clunk

Stopper

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Question 6 of 10

6. Which channel (or receiver output) in a 4 channel radio is usually assigned to the elevator control surface? Hint

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Question 7 of 10

7. Propellers for RC aircraft generally are two-bladed (although can have as many as 3 or 4 blades) and are selected based on a pair of numbers. Common sizes for sport planes are 10/6, 11/7, and 11/6. The first number designates the length of the prop. What is the meaning of the second number? Hint

Weight

Center hole diameter

Width

Pitch

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Question 8 of 10

8. What is the displacement of an OS 46AX engine? Hint

46 cubic centimeters

4.6 cubic centimeters

4.6 cubic inches

.46 cubic inches

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Question 9 of 10

9. What is Realflight G2? Hint

An RC flight simulator

A manufacturer of model aircraft accessories

A park flier made from foam

A DVD containing highlights from RC flying events

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Question 10 of 10

10. How many wires are in a typical servo extension cable? Hint

none

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Most Recent Scores

Apr 10 2024 : crazydongle: 3/10
Apr 05 2024 : Guest 173: 6/10
Mar 16 2024 : camhammer: 4/10

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Quiz Answer Key and Fun Facts

1. In the US, what is the governing body of the model airplane hobby?

Answer: Academy of Model Aeronautics (AMA)

The AMA is headquartered in Muncie, Indiana and represents over 170,000 flyers and 2500 flying clubs in the US. Members of the AMA enjoy several benefits including liability insurance, organized competitions, a monthly magazine, and more.

2. Which is not a battery type used for flying park flyers?

Answer: Silver Oxide (SOx)

LiPo technology is rapidly replacing all other types of batteries in the hobby due to its light weight and high capacity. NiCad and NiMH batteries are still in use, but are heavier than LiPo batteries, which is a big disadvantage.

3. How many channels are available for FM model aircraft radios in the US?

Answer: 50

The channels range from 11 through 60 and represent individual frequencies spread across the 72Mhz band. There are also seperate frequencies available for licensed amatuer radio operators, but these are not widely used.

Answer: 4

A plane with 'full-house' controls has a separate channel for Aileron, Elevator, Throttle, and Rudder. There may also be channels for flaps, landing gear, and other optional accessories.

Answer: Clunk

If a plane has a hard landing, this clunk sometime gets lodged at the front of the fuel tank and restricts or cuts-off the fuels supply, making the engine hard to start.

6. Which channel (or receiver output) in a 4 channel radio is usually assigned to the elevator control surface?

Answer: 2

Typically the channels are arranged as follows:
1 - Aileron
2 - Elevator
3 - Throttle
4 - Rudder

Answer: Pitch

The pitch of a propeller measures how far it would propel the plane forward with one revolution, and assumes no slippage of the air (which is impossible). So the higher the pitch, the steeper the angle of the blades. Center hole diameters are generally determined by reaming the correct size for the engine in use.

8. What is the displacement of an OS 46AX engine?

Answer: .46 cubic inches

Most glow engines are designated by their cubic inch displacement. Engines from .40 to 1.00 cubic inches are the most common in the glow-powered category.

9. What is Realflight G2?

Answer: An RC flight simulator

Great Planes makes Realflight simulators for personal computers. The controller that comes with Realflight is made by Futaba. Beginners that have trained on a simulator prior to their flight training generally progress more rapidly.

10. How many wires are in a typical servo extension cable?

Answer: 3

Most servos have a positive, negative and signal wire.

Source: Author brownknows

This quiz was reviewed by FunTrivia editor Moo before going online.
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