5/9/2023 0 Comments Cessna 172 cockpitI then used LuaScript to access the necessary registers in the Prepar3d software to move the appropriate simulator components correctly. To connect the switches to my PC, I used 2 Arduino Megas as joystick emulators that would return the switch values as button values, potentiometer values as axis values, and would count encoder clicks and return that number as an axis value. Once complete, I began work on the main panel, which is where the instruments are in virtual reality. I then started the construction of the frame of the cockpit. I retrofitted a TPM throttle, prop and mixer system onto one of the panels. 4.First I created the switch panel by cutting, drilling and painting pieces of acrylic then mounting the appropriate switches. What basic flight instruments are present on an assembled Aeronca AC11 Scout airplane like the one in our lab? 1. ![]() The needle shown here on the zero means the aircraft is neither climbing nor descending. It gets it's information from the static system. Vertical Speed Indicator (VSI) This instrument shows the rate of climb or descent in hundreds of feet per minute. The orange tab is an adjustable heading “bug,” which is used to maintain reference to assigned headings or to remember runway info. It is powered by the vacuum system and must be set to the magnetic compass before takeoff and periodically during level flight to maintain accuracy. HEADING INDICATOR This instrument shows the direction of the nose of the airplane and is much easier to read than the magnetic compass. They are also used to maintain coordinated flight, which is indicated by the black ball being centered as shown here The rudder pedals are used to adjust the yaw of the airplane. TURN COORDINTATOR This instrument shows the rate and quality of a turn. It is susceptible to turning and acceleration/deceleration errors while the aircraft is moving, and therefore is not generally used as a primary navigation device. It has no external power source so it could be used in case of other instrument failure. Magnetic Compass This instrument is simply a wet magnetic compass. If the pressure setting is unknown it may be set to the airport elevation before takeoff. It gets it's reading from the static system and must be adjusted to the current barometric pressure setting for accuracy. The AI is powered by the vacuum system and gets it's readings from a built-in gyroscope.ĪLTIMETER This instrument shows the current aircraft altitude or height above sea level. In this example the aircraft is flying level(neither climbing nor descending) but is banking to the left. The blue area represents the sky and the brown is the earth. The orange lines represent the aircraft wings. Note that airspeed is the speed of the air hitting the aircraft and is usually different from ground speed.ĪTTITUDE INDICATOR This instrument shows the current relationship(pitch and bank) of the aircraft to the horizon. The red mark is the speed that should never be exceeded. The yellow arc is the safe range only when in smooth air. The bottom of the white arc is the stall speed with flaps fully extended and the top of the white arc is the maximum speed with full flaps. ![]() The bottom of the green arc is the stalling speed with flaps up. The green arc is the normal operating range. ![]() Identify the Highlighted Cessna 172 Basic Flight Instruments BelowĬ172 Basic Flight Instruments Attitude Indicator Airspeed Indicator Altimeter Standby Compass Turn Coordinator Vertical Speed Indicator (VSI) Heading IndicatorĪIRSPEED INDICATOR This instrument shows the current airspeed of the aircraft in nautical miles per hour.
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