UAV Campus - Answers

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  1. Asked: May 31, 2024In:

    If an unmanned airplane weighs 33 pounds, what approximate weight would the airplane structure be required to support during a 30° banked turn while maintaining altitude?

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    38 pounds.   (The information needed for this answer is found in the left column of the figure. At 30° of bank, the load factor is 1.154. If the object weighs 33 pounds, then at 30°, the load factor will be 33x1.154=38 pounds. See "Load Factor" video for more information.)

    38 pounds.  

    (The information needed for this answer is found in the left column of the figure. At 30° of bank, the load factor is 1.154. If the object weighs 33 pounds, then at 30°, the load factor will be 33×1.154=38 pounds. See “Load Factor” video for more information.)

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  2. Asked: May 31, 2024In:

    When loading cameras or other equipment on an sUAS, mount the items in a manner that

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    This answer was edited.

    does not adversely affect the center of gravity.   (As seen in the videos in this chapter, mounting anything to the sUAS affects the location of the CG. So when mounting cameras or other equipment, be sure it doesn't change the CG to the point where it is out of limits. While the other two answers aRead more

    does not adversely affect the center of gravity.  

    (As seen in the videos in this chapter, mounting anything to the sUAS affects the location of the CG. So when mounting cameras or other equipment, be sure it doesn’t change the CG to the point where it is out of limits. While the other two answers are rather correct, the “most correct” answer is still “does not adversely affect the center of gravity.” See “Factors affecting performance” video for more information.)

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  3. Asked: May 31, 2024In:

    What could be a consequence of operating a small unmanned aircraft above its maximum allowable weight?

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    Shorter endurance. (This is actually an interesting question from the FAA and one that could be worded better. The technical answer to this question is: if the aircraft is operating above its maximum allowable weight... well... it wouldn't be operating because the wings wouldn't be able to sustain iRead more

    Shorter endurance.

    (This is actually an interesting question from the FAA and one that could be worded better. The technical answer to this question is: if the aircraft is operating above its maximum allowable weight… well… it wouldn’t be operating because the wings wouldn’t be able to sustain its weight! But let’s assume they mean you are operating “near” the max allowable weight, in which case you will need to generate more lift, which means it will require more energy. More energy = less battery or fuel = shorter endurance.  Maneuverability would be decreased and the speed would be reduced (imagine riding a 50 lbs bike instead of a 10 lbs bike, which one will give you faster speeds). See “Factors affecting performance” video for more information.)

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  4. Asked: May 31, 2024In:

    A stall occurs when the smooth airflow over the unmanned airplane’s wing is disrupted and the lift degenerates rapidly. This is caused when the wing

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    exceeds its critical angle of attack. (As explained in the aerodynamics video about stalls, the airflow starts to disrupt at a particular moment: when the critical angle of attack is reached. While the traditional wisdom dictates that this happens at slow airspeed, when the nose of the aircraft is hRead more

    exceeds its critical angle of attack.

    (As explained in the aerodynamics video about stalls, the airflow starts to disrupt at a particular moment: when the critical angle of attack is reached. While the traditional wisdom dictates that this happens at slow airspeed, when the nose of the aircraft is high, this can happen at any speed. If you apply abrupt pitch-up controls, the angle of attack can reach the critical number where the airflow separates and the aircraft stalls. Remember also that the angle of attack is the difference between the chord line and the relative wind (or direction of motion of the aircraft). When the aircraft reaches maximum speed, the wing will still produce lift, but structural failure can occur (the aircraft wouldn’t be strong enough to go that fast).  If the aircraft exceeds its maximum allowable operating weight, structural damage or failure is also a possibility.  See “Stalls” video for more information.)

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  5. Asked: May 31, 2024In:

    When operating an unmanned airplane, the remote pilot should consider that the load factor on the wings may be increased anytime

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    the airplane is subjected to maneuvers other than straight and level flight. (As seen in the videos, load factor increases in relationship with total lift. Total lift increases when the aircraft is turning or climbing/descending, aka "maneuvers other than straight and level flight". The gross weightRead more

    the airplane is subjected to maneuvers other than straight and level flight.

    (As seen in the videos, load factor increases in relationship with total lift. Total lift increases when the aircraft is turning or climbing/descending, aka “maneuvers other than straight and level flight”. The gross weight does have a detrimental effect on load factor as well but only when it increases (more weight = more lift = more load factor). Finally, the location of the CG does not have an effect on load factor. See “Load Factor” video for more information.)

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  6. Asked: May 31, 2024In:

    According to 14 CFR part 107, who is responsible for determining the performance of a small unmanned aircraft?

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    Remote Pilot in Command (The Remote pilot-in-command has many responsibilities before, during, and after a flight, including determining the performance of the aircraft prior to take off. The owner or operator also has responsibilities but not this one. See "Responsibilities & Forces of Flight"Read more

    Remote Pilot in Command

    (The Remote pilot-in-command has many responsibilities before, during, and after a flight, including determining the performance of the aircraft prior to take off. The owner or operator also has responsibilities but not this one. See “Responsibilities & Forces of Flight” video for more information.)

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  7. Asked: May 31, 2024In:

    To ensure that the unmanned aircraft center of gravity (CG) limits are not exceeded, follow the aircraft loading instructions specified in the

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    Pilot's Operating Handbook or UAS Flight Manual. (There is no such thing as an Aircraft Weight and Balance Handbook. All the information for the aircraft is contained in either the Pilot's Operating Handbook (POH), which is a manned aircraft term, or the UAS Flight Manual if one is provided by the mRead more

    Pilot’s Operating Handbook or UAS Flight Manual.

    (There is no such thing as an Aircraft Weight and Balance Handbook. All the information for the aircraft is contained in either the Pilot’s Operating Handbook (POH), which is a manned aircraft term, or the UAS Flight Manual if one is provided by the manufacturer. The Aeronautical Information Manual (AIM) is an FAA document that explains a variety of topics in more details. See “Responsibilities & Forces of Flight” video for more information.)

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  8. Asked: May 31, 2024In:

    This sign confirms your position on (Refer to F)

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    runway 22. (Black signs with yellow lettering indicate location information. Runways are always identified with numbers. In this case, it indicates that the aircraft is located on runway 22. See "Airport Signs" video for more information.)

    runway 22.

    (Black signs with yellow lettering indicate location information. Runways are always identified with numbers. In this case, it indicates that the aircraft is located on runway 22. See “Airport Signs” video for more information.)

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  9. Asked: May 31, 2024In:

    This sign is a visual clue that (Refer to E)

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    confirms the aircraft's location to be on taxiway "B." (Black signs with yellow lettering indicate location information. Taxiways are always identified with letters. In this case, it indicates that the aircraft is located on taxiway B. See "Airport Signs" video for more information.)

    confirms the aircraft’s location to be on taxiway “B.”

    (Black signs with yellow lettering indicate location information. Taxiways are always identified with letters. In this case, it indicates that the aircraft is located on taxiway B. See “Airport Signs” video for more information.)

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  10. Asked: May 31, 2024In:

    Which sign identifies where aircraft are prohibited from entering?

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    D. (A red background with white lettering indicates mandatory information in nature. A circle with a bar in the middle indicates a restricted area. See "Airport Signs" video for more information.)

    D.

    (A red background with white lettering indicates mandatory information in nature. A circle with a bar in the middle indicates a restricted area. See “Airport Signs” video for more information.)

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