# 保持模式 (Multicopter)
The Hold flight mode causes the vehicle to stop and hover at its current GPS position and altitude.
提示
Hold mode can be used to pause a mission or to help you regain control of a vehicle in an emergency. It is usually activated with a pre-programmed switch.
注解
- This mode requires GPS.
- This mode is automatic - no user intervention is required to control the vehicle.
- RC control switches can be used to change flight modes on any vehicle.
- RC stick movement will by default change the vehicle to Position mode unless handling a critical battery failsafe.
# Technical Summary
The vehicle hovers at the current position and altitude. The vehicle will first ascend to NAV_MIN_LTR_ALT if the mode is engaged below this altitude.
RC stick movement will change the vehicle to Position mode (by default).
# Parameters
Hold mode behaviour can be configured using the parameters below.
| Parameter | Description |
|---|---|
| NAV_MIN_LTR_ALT | This is the minimum altitude above Home the system will always obey in Hold mode if switched into this mode without specifying an altitude (e.g. through switch on RC). |
| COM_RC_OVERRIDE | Controls whether stick movement on a multicopter (or VTOL in MC mode) causes a mode change to Position mode. This can be separately enabled for auto modes and for offboard mode, and is enabled in auto modes by default. |
| COM_RC_STICK_OV | The amount of stick movement that causes a transition to Position mode (if COM_RC_OVERRIDE is enabled). |