# Limted flight speed in mission and position modes

Source: https://forum.modalai.com/topic/905/limted-flight-speed-in-mission-and-position-modes
Category: Development Drones (https://forum.modalai.com/category/44/development-drones)
Tags: m500
Posted: 2022-05-02 15:18:52 UTC by yu zhang
Replies: 3 · Views: 834

## yu zhang · 2022-05-02 15:18:52 UTC

Hi team, 
I tested m500's flight speed in different flight modes, and I found the maximum speed was limited by up to 5m/s in both mission and position modes. However, the speed could easily go up to 10m/s in manual mode. So, I am wondering if there is a default max speed setup or safety control in mission and position modes?

Here is the velocity in a mission test, and I set the speed as 10-12m/s (12m/s is the default max value of px4), but the actual speed was less than 5m/s.

![Screen Shot 2022-05-03 at 1.09.58 AM.png](https://forum.modalai.com/assets/uploads/files/1651504503250-screen-shot-2022-05-03-at-1.09.58-am.png) 

Also, it is another example in the manual mode, and I can speed up m500 to 8.5m/s in seconds. 

![Screen Shot 2022-05-03 at 1.16.45 AM.png](https://forum.modalai.com/assets/uploads/files/1651504611579-screen-shot-2022-05-03-at-1.16.45-am.png)

## Reply by yu zhang · 2022-05-06 02:02:03 UTC

Hi @RichieRich I would follow up with this question about m500's flight speed. 

I am wondering if VOXL or PX4 had a flight safety control hold in position and mission modes? And this hold is released in manual mode? Thanks.

## Reply by Chad Sweet (ModalAI staff) · 2022-05-06 02:09:18 UTC

I found this with Google: https://discuss.px4.io/t/maximum-speed-in-gps-controlled-mode/334/6

## Reply by yu zhang · 2022-05-07 02:59:14 UTC (in reply to Chad Sweet)

Hi @Chad-Sweet thanks for that, and it seems it could work by setting a higher value of the maximum speed in QGC. I will test it again to see if it could work to achieve a fast speed in the mission mode ;)