# VEHICLE_FLAG_HOVER_UP_ONLY

*LSL constant*

```lsl
integer VEHICLE_FLAG_HOVER_UP_ONLY = 0x20;
```

Vehicle flag preventing hover from pushing downward, allowing hovering vehicles to jump or fly above their designated hover height.

Constant groups: [VehicleFlag](/constants/groups/VehicleFlag/)

## Caveats

- When used with non-zero [VEHICLE_HOVER_HEIGHT](/constants/VEHICLE_HOVER_HEIGHT/) and [VEHICLE_BUOYANCY](/constants/VEHICLE_BUOYANCY/) then the buoyancy effect will be disabled when the vehicle's (root prim) position is higher than its hover height.
  - This has been confirmed to be a misfeature[^wiki-55b893].

[^wiki-55b893]: See [User_talk:Andrew_Linden](https://wiki.secondlife.com/wiki/User_talk:Andrew_Linden#vehicle-flag-hover-up-only) for details.

## Known issues

- [SVC-1972](https://jira.secondlife.com/browse/SVC-1972): `VEHICLE_FLAG_HOVER_UP_ONLY` doesn't seem to do anything

## See also

### Constants

| Constant | Type | Value | Description |
| --- | --- | --- | --- |
| [VEHICLE_BUOYANCY](/constants/VEHICLE_BUOYANCY/) |  |  |  |
| [VEHICLE_HOVER_HEIGHT](/constants/VEHICLE_HOVER_HEIGHT/) |  |  |  |
| [VEHICLE_FLAG_HOVER_WATER_ONLY](/constants/VEHICLE_FLAG_HOVER_WATER_ONLY/) |  |  |  |

### Functions

- [llSetVehicleFlags](/functions/llSetVehicleFlags/)
- [llRemoveVehicleFlags](/functions/llRemoveVehicleFlags/)

### Articles

- [Linden Vehicle Tutorial](https://wiki.secondlife.com/wiki/Linden_Vehicle_Tutorial)

---

*Source: [VEHICLE FLAG HOVER UP ONLY](https://wiki.secondlife.com/wiki/VEHICLE_FLAG_HOVER_UP_ONLY) on the Second Life Wiki. Content from the Second Life Wiki article VEHICLE FLAG HOVER UP ONLY (revision 721183, 2010-02-04), CC BY-SA 3.0.*

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From lsl.dev: https://lsl.dev/constants/VEHICLE_FLAG_HOVER_UP_ONLY/