How to Plan and Fly Corridor/Linear Projects with the P4RTK

The instructions below will walk you through the steps to fly a mission in the GS RTK app. You can also use a KML file to plan your mission and import it into the GS RTK app

Plan the linear flight mission in the GS RTK app

  1. Select Linear Flight Mission on the mission plan page.


2. Draw a line on the map by tapping points or import a KML as a data resource.

3. Using the linear element as a reference, expand the buffer based on the mission specifics in both the left and right directions. The expansion distance for each side is a minimum of 10m (32ft) and a maximum of 2000m (2km or 1.2 mi).

4. If the linear element is longer than two kilometers, it will be cut into several sub-missions, with a minimum length of 0.5km (0.3 mi) and a maximum of 2km (1.2 mi).

5. Set the flight height, speed, camera parameters, and overlap rate as you would for 2D mission planning

You need at minimum 3 rows of images along the flight route, but our strong recommendation is that you have 4-5 rows.

6. There are two flight modes for linear missions: Full Coverage and Efficiency. Full Coverage mode has one or two turns more than Efficiency mode. We typically recommend Full Coverage to ensure that the area of interest you want to survey has the correct overlap for modeling and corrections.

7. Name the mission and tap OK to save. 

Flying the Corridor

We recommend placing one AeroPoint (or other ground control point) at each end of the linear corridor and 0.75 mi (1.2km) intervals for best results. However, iyou only have one AeroPoint, place it near the location you're flying from.

Once you've laid out your AeroPoint(s) and turned them on, select Invoke on your mission or go to the Flight page. The missions list is on the left side of the page.

If your mission is broken into segments, you'll see each has a number associated with it. You can select a sub-mission by tapping that number. If selected, it will be highlighted. To select subsequent segments, select Executing menu, and tap the appropriate number.

It's important that each mission be at least 10 minutes of flight time to gather the required amount of GPS information for processing. 

I still can't do it!

We wrote these articles to equip you with everything you need to get the job done on your own, but we understand that sometimes this isn't sufficient.

If you're stuck, the Propeller hardware support team may be able to help. You can contact our support team by emailing