USI chapters 1-17 study guide latest updated

Unit 1 - Answer- To look for a certain unit, just press CTRL and the F key at the same time for a search bar. Credit to Musmak Make sure to scroll down and press show more to get all of the answers What did Elmer Sperry contribute to the history or UAS? - Answer- Automatic stabilization What are the three technology issues facing UAS' full integration into the airspace? - Answer- Reliability, development of Detect and Avoid technology, control link security What is the difference between a guided missile and a modern UAS? - Answer- Modern UAS are intended for recovery and guided missiles are expendable UAS like the Lightning Bug initially used INS guidance. What technology increased the accuracy and capability of UAS? - Answer- Global Positioning System What was the primary mission of the Lightning Bug in Vietnam? - Answer- Reconnaissance Why is the term "unmanned aircraft system" used versus terms like UAV or drone? - Answer- To represent all of the components of a UAS not just the air vehicle What was the first full-scale remotely piloted aircraft? - Answer- Sopwith Aerial Target In what year did Congress mandate UAS integration into the national airspace? - Answer- 2012 Which of the following would be an example of a sUAS? - Answer- ScanEagle What are the two distinctive types of unmanned aircraft systems? - Answer- Autonomous and remote control What modern-day sUAS powerhouse did Dr. Paul MacCready start? - Answer- AeroVironment What technology was added to the TDR-1 that made it different from all previous UAS? - Answer- Television guidance What are the FAA's three categories of UAS? - Answer- Micro, Small, UAS What year did nonmilitary agencies begin using UAS? - Answer- 2004 What "first" for UAS was first credited to Reginald Denny? - Answer- Mass production What system was the original genesis of the modern-day Predator? - Answer- Leading Systems Amber What UAS was created by Israel in the 1970s and battle tested in 1982? - Answer- Scout What type of UAS remote pilots did the FAA first authorize? - Answer- Public What is the upper GTOW limit of a small UAS? - Answer- Less than 55 pounds Who patented a way to control vehicles remotely using radio waves? - Answer- Nikola Tesla What was the first operational targeting drone? - Answer- De Havilland Queen Bee What are the four core components of a UAS? - Answer- Unmanned aircraft, payload, control station, control link Unit 2 - Answer- What are the four forces that act on an aircraft in flight? - Answer- Lift, weight, thrust, and drag What electro-mechanical device can be used to move a control surface? - Answer- Servo What type of flight control system was developed in the 1950s and 60s to relax the stability of an aircraft in an effort to make it more maneuverable? - Answer- Fly-by-wire Air temperature decreases and air density _____ with increases in altitude. - Answer- decreases In general, as the AOA of an airfoil increases, what two forces also increase? - Answer- Lift and drag What is the most common power source for sUAS today? - Answer- Brushless DC electric motors and LiPo batteries What four parameters are required to calculate density altitude? - Answer- Barometric pressure, air temperature, dew point, and field elevation UA can move through 3-D space with _____ degrees of freedom. - Answer- six Which of the following changes can a remote pilot expect if the UA is overweight? - Answer- Decrease in maneuverability What is one of the most important factors affecting overall aircraft performance? - Answer- Air density What are the three degrees of motion that illustrate rotation around axes? - Answer- Pitch, roll, and yaw Which fixed-wing aircraft control surface can create movement around the lateral axis? - Answer- Elevator Rotary-wing aircraft fall into which two categories? - Answer- Helicopter and multirotor What multirotor configuration uses vectored thrust to control the yaw axis? - Answer- Tricopter What type of sUAS is best suited to be powered by an internal combustion engine? - Answer- Fixed wing A helicopter is a type of _____ aircraft. - Answer- rotary-wing What is the primary advantage of rotary-wing aircraft over a fixed-wing? - Answer- VTOL and hovering flight capability Name the component of a UA that houses most of the equipment and acts as the basic structure. - Answer- Fuselage Unit 3 - Answer- What is used to measure distance of a radio wavelength? - Answer- Two adjacent points on the wave What is antenna gain? - Answer- Resultant increase by amplitude of the signal What is diffraction? - Answer- Radio waves bending and moving around an object Name the two primary types of antennas. - Answer- Omni and directional What information is transmitted through uplink? - Answer- Commands What is wave propagation? - Answer- Way in which radio waves move from the source