Overview
In this simulator assignment, you will learn the basics of energy management to maintain a safe speed and altitude in a standard left traffic pattern. Target speeds will follow the Believer's to mimic the flight characteristics. Students are encouraged to complete this assignment on their own PCs, but the PCs in COMP 101 have two main advantages: higher computer specs. and access to use the Believer DATX transmitter for flight training. DATX may not be checked out, but may be used in COMP 101.
Tasks
Simulator Setup Overview
Use the following images and settings to set up your simulator. Be sure to reference and for help with setup. Aircraft and environmental defaults
Aircraft: CUSTOMIZED Alpha 40, Scaled 60-size, 72-in Span (7-lb). See Transmitter: Orqa | Be sure to calibrate Flying Site: Frasca Airport Wind: Steady Winds: 0 mph at startup Flight screen must show transmitter and HUD.
Aircraft Setup
The aircraft in its current configuration is overpowered relative to the Believer. Please follow the guidance in by to set the aircraft output to 75% of current. Screenshot
Take a screenshot of the updated motor/engine output.
Convert and Define Speeds
The SeligSIM (at the time of writing) does not allow changing the airspeed units from miles per hour (mph). In this and all future SeligSIM assignments, we will follow and reference the Believer's airspeed settings.
Create a table (6-7 columns; 9 rows) below that shows the unit corrected speeds from the . The table must include columns for: YOUR description of the parameter/condition The description of each parameter may require some research into as well as some intuition. Speed (kts) [unless you combine the speed column and write a more complex formula] The conversion from m/s or kts to mph MUST be completed using a formula entered into Coda. You may use AI and the Coda help docs to build your formula. Type out your formula in the callout below. The simulator aircraft seems to work best using 70% Believer speeds. Use a formula to calculate this. =thisRow.[ColumnName]*0.7 Conversion Table
Build and complete the required conversion table as a deliverable.
Speed m/s formula: thisRow.[Speed kts]*0.514444
Speed mph formula: thisRow.[Speed kts]*1.15078
Scaled Speed Formula: thisRow.[Speed kts]*0.7
Scaled Platform Checklist
Speed Questions
Reference and explain what a V-speed is. vspeeds are defined airspeeds for specific operational reasons. this could be limitations or performance requirements Add a column to the table above and include V-speed indicators. There may not be an exact match, so think critically about what the parameter “speed” represents. Traffic Pattern Diagram
Throughout the Believer flight training, you will be expected to navigate and communicate using standardized aviation language. Positional information about the aircraft will be communicated in accordance with a standard traffic pattern. That is, if your instructor commands a left turn for base, you must know what that means and execute the maneuver expeditiously and confidently. Additionally, each leg of the traffic pattern may have a different speed requirement that must be followed for successful launch, cruise, and landing.
For this task, draw and label a standard left-hand traffic pattern for the simulated Frasca Airport. Assume that the aircraft is oriented to take off on runway 09. You must label the leg name in the traffic pattern AND the desired speed for each leg. If needed, you may justify your response in the footer of your drawing.
Drawing
Traffic pattern drawing required as a deliverable.
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Controls Check
Perform a controls check according to and answer the following questions. Remember that a control check is required before each flight. A full upward deflection of the right stick moves which control surface and in which direction? it moves the elevator upward, causing the nose to pitch up A full rightward deflection of the left stick (at throttle idle) causes which two controls to move? What rotational motion will result from this input? Refer to the for additional information. this causes your vertical axis to move, movre specifically, your rudder. However, since the rudder and throttle share a stick, the throtle/power would also move. Takeoff and Energy Management
Next, you will perform an aircraft takeoff while maintaining the proper takeoff speed through the system's energy management. The Believer (and any system with a stabilized mode) has a total energy control system (TECS) algorithm built in to continually monitor and adjust the aircraft to balance its kinetic and potential energy, maintaining sufficient lift at all times. When this system is well-tuned, entering a stall condition on the Believer is very difficult (though still possible). [Optional] You may read for more information on the algorithm architecture. Before your first recorded takeoff, answer the following. Many of these questions can be answered from the . Under high power (i.e., during takeoff), the aircraft will experience an asymmetric condition called “P-factor.” Define P-factor and describe the control inputs required to counteract it. P-factor is when a propeller-driven aircraft is given power, the blade moving downward produces more thrust than the blade moving upward, which causes the aircraft to have left-turning yawing tendencies. To counteract it, you apply right rudder. During the takeoff climb, power must be “pinned” fully open (i.e., throttle control stick full upward deflection) until you reach your cruise altitude and “level off.” You must maintain your takeoff speed according to your values from . What control input should you use to set your speed? You would use your elevator to maintain speed with the throttle fully pinned. As you reach cruise altitude (say, 200 ft AGL), how will you need to adjust the controls to level the aircraft at 200 ft AGL while maintaining cruise speed? You will need to initiate the leveling process earlier than the desired altitude, and you will need to reduce the pitch and power. Loading video: Kenzie_3rdsim1stvid.mp4...
Screen Recording
Record the takeoff maneuver described below.
Now, perform a takeoff maneuver and achieve the following (you do not need to turn or land - you can press the ESC key to respawn at launch):
Control speed according to the converted values from the Level off at a cruise altitude of 200 ft AGL. Turns and Energy Management
After a successful takeoff, depending on the aircraft's performance before or after reaching cruise altitude, you will need to turn crosswind. There are several special considerations when turning in a fixed-wing aircraft. Answer the following questions to guide your understanding before entering a turn in the simulator. Again, many of these questions can be answered from the . What throttle input is used during takeoff (in percentage)? What throttle input is used during cruise (in percentage)? Describe the aileron input(s) required to achieve and maintain a 20° bank. To enter: apply aileron to the direction of turn (left aileron left turn) until the wing reaches the bank angle At 20-degree bank, relax the aileron pressure Can use the same rudder if needed to offset adverse yaw In the 20° bank above, what will happen to the altitude of the aircraft if neither the throttle nor the pitch is adjusted? The aircraft will begin to descend. Using the two questions above, what inputs are required to complete a turn from departure to crosswind? You would want to apply aileron in the direction of the turn to your desired bank angle, add a little bit of back pressure on the elevator, adjust power as needed, and once at bank angle, relax the elevator pressure. Adjust power and pitch as needed to maintain. To get out of your turn in the crosswind, apply the opposite aileron to roll back to level, keep rudders neutral, and adjust pitch to keep level Screen Recording
Record the turning maneuver described below.
Now, combine the procedure in and add in turns to achieve the following (you do not need to turn or land - you can press the ESC key to respawn at launch as needed): Level off at a cruise altitude of 200 ft AGL. Maintain cruise speed (±5 mph) Perform all turns in the traffic pattern without gaining or losing altitude (± 25 ft) Complete the traffic pattern two times (do not set up for landing - fly the runway at cruise altitude) Landing Approach and Go Arounds
Now that you have mastered the takeoff, turns, and the traffic pattern, it’s time to start the landing approach. As you might have guessed, this part is also about energy management. In this case, we are looking to shed energy. In this task, you will not land, but instead complete low pass approaches to the runway while maintaining centerline AND altitude discipline before performing a go-around and reentering the pattern. Answer the following questions regarding the landing approach. Refer to the as needed. What speed (in mph) should you target for your landing approach according to the ? Imagine the aircraft is aligned on the centerline, and you have hit the target altitude by the final turn. Describe the shape of the aircraft as it approaches you/the touchdown point? The nose should be pointed straight down the runway The nose should be tilted slightly up Should come down at a constant angle If you notice that, as the aircraft is approaching you, it appears to be moving lower within your reference frame, what input should you provide to stop the ascent? You should reduce pitch by slightly applying forward pressure on the elevator. What is a flare, and what is the purpose of this maneuver? Flare is when the pilot gradually increases back pressure on the elevator to raise the nose and reduce the aircraft’s speed. The flare reduces speed before touchdown, prevents hard landings, allows the main wheels to touch first, and helps the angle of descent be constant. At what point in the landing operation should you target the AIRSPEED_MIN_LND? You should reach the target minimum landing airspeed during the final approach segment. Once the aircraft is on final, aligned with the runway, in landing configuration, and stabilized in a constant descent. The descent requires the opposite inputs from the ascent. Describe the throttle and pitch inputs needed to transition from straight and level flight in cruise into a descent? You will need to reduce the throttle below your cruise speed and lower the nose slightly. Screen Recording
Record the landing approach maneuver described below.
Now, combine the procedures in , , and add in the landing approach to achieve the following (you do not need to turn or land - you can press the ESC key to respawn at launch as needed): Level off at a cruise altitude of 200 ft AGL early in the downwind leg. Maintain cruise speed (±5 mph) Begin descent and target approach speed as you turn base. Continue descent through base and target ~75-100 ft AGL as your turn final. Continue descent, maintaining glide slope (ensure the aircraft does not move up or down in the reference frame). As you approach the runway, stop the ascent at eye level by adding throttle. Maintain centerline and eye level as the aircraft flies past your location. Perform a go-around as the aircraft passes you by, applying full throttle and targeting the takeoff speed. If you have mastered the lowpass, perform a touch and go by pulling throttle to idle, and begin rounding out (flare) until the rear wheels touch the runway (reference figure 9-10 in ) Before the front wheel touches, perform a go-around as the aircraft passes you by, applying full throttle and targeting the takeoff speed. Deliverables
Upload a completed copy of this document (as a PDF) to brightspace by the due date listed in the . See to add this page to your own doc. See to create a PDF of your doc for submission. Screenshot of updated motor/engine output from . Inline or attached to Brightspace submission. Traffic pattern drawing from Inline or attached to Brightspace submission. Inline or attached to Brightspace submission.