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There is a link to a video at the bottom of the page going over Arrowhead’s flight modes
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Arrowhead has three different flight modes available during operation: Position, Altitude, and Stabilize. Each of these modes provides different levels of operator assistance and flight automation.
Position - Position flight mode is the default mode for Arrowhead. Position mode uses visual navigation to hold the aircraft’s 3D position without operator input. In this mode operators can take their hands off the control and the aircraft will hold its position (assuming it has good tracking of the environment it is in).
<aside> <img src="/icons/light-bulb_yellow.svg" alt="/icons/light-bulb_yellow.svg" width="40px" /> It is crucial for the camera to see objects in the environment for the drone to be able to position itself. The drone operates best when flying in an environment with lots of stuff in it (like a messy garage).
Locations with limited items, plain floor and walls and highly reflective surfaces tend to have difficulties with positioning. While failures do not always occur in plain environments, the operator should be aware that the position mode will have a higher degree of error and will be less robust. Slowing down movements and not jerking the sticks (which will result in rapid changing of views for the positioning camera) will improve positioning results.
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Altitude - In Altitude flight mode the aircraft will attempt to maintain its altitude without needing operator input. Unlike position flight mode the aircraft will not attempt to hold its lateral position. In altitude flight mode the aircraft will feel faster and may be more challenging to control for less experienced operators, as it will not brake or slow down on its own.
<aside> <img src="/icons/light-bulb_yellow.svg" alt="/icons/light-bulb_yellow.svg" width="40px" /> Altitude mode uses a combination of the tracking camera data and the barometer onboard the aircraft, if the aircraft does not have a high quality track on the environment, expect some altitude deviation (i.e. shortly after a position mode failback).
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How Sensor failures are handled
<aside> <img src="/icons/exclamation-mark_red.svg" alt="/icons/exclamation-mark_red.svg" width="40px" /> When flying in position mode there is a possibility that the tracking camera will struggle to maintain good localization of the system in the environment. If the aircraft loses tracking due to a blocked camera or overly harsh lighting conditions it will automatically switch into Altitude flight mode. Operators are encouraged to practice flying in both Position and Altitude flight modes.
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<aside> <img src="/icons/light-bulb_yellow.svg" alt="/icons/light-bulb_yellow.svg" width="40px" /> In the event that the aircraft cannot launch in position mode (typically due to the sensor being blocked or glared by the surface below it) operators can hand launch or take off in altitude or stabilize flight modes and then switch into position mode.
Altitude and Stabilize modes are highly recommended to master as it allows operators to take off wherever they might need.
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Stabilize - Stabilize flight mode is the most manual of all flight modes and should be reserved for highly experienced operators, or situations where operating in Position or Altitude mode is impossible due to damage to the aircraft or environmental issues. In Stabilize mode the aircraft will return to level when the controls are released, but it will not attempt to maintain position or altitude. When the throttle is centered, the aircraft will descend down into ground effect a couple of inches off the ground; this can be useful when navigating under obstacles or in tight spaces.
<aside> <img src="/icons/exclamation-mark_red.svg" alt="/icons/exclamation-mark_red.svg" width="40px" /> When flying in Stabilize mode, the throttle stick must be pushed down completely before arming the aircraft.
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