My First Drone ‘Mission’

She Maps Team
She Maps Team
15 Jan 2019
Annandale State School aerial photo

By Dr Kerry Beggs

Using drones to work out scale

This week I am sharing the story of my first proper drone ‘mission’ since obtaining my Remote Pilot Licence and buying a Mavic Air, earlier this year. I have been flying drones long at all – and the first models I ever flew were the Parrot Mambos we use in She Maps sessions. 

After lots of practice flying the Mavic Air around my own block, in a rural area outside Townsville, I was up for a real challenge. A teacher friend if I could use my drone to help her out with a maths activity she wanted to do with her students. 

She was seeking a single aerial photograph of her primary school in suburban Townsville, from which the students could make measurements of features such as buildings or footpaths (i.e. with rulers), then also measure the same features on the ground, to work out scale. 

I was very keen to help out, but as I know from my licence training – there were lots of CASA rules I’d have to follow. 

Firstly, I checked the location of the school (using the ‘Can I Fly There?’ App) – fortunately it was more than 5.5km away from the nearest controlled aerodrome (Townsville airport), but was within 5.5km of a helicopter landing site, so I’d have to keep watch and land if I saw any helicopters nearby. 

Secondly, I wouldn’t be able fly over or within 30m or any people, so we planned for a Saturday when the school would be locked up and no-one else would be around, other than me (pilot) and my friend (acting as a spotter). My drone has audio warnings to let me know I’m approach the maximum flying height of 120m, and I knew I’d have to fly only within line of sight – so those rules were covered too. Unless something out of the ordinary happened on the day to create an emergency situation at the school, I was good to go!

Saturday came around and it was a little windy on the day, but a quick test flight revealed it was OK and the drone was flying fine. I flew up to 118m (the highest I’d ever flown – my hands were shaking a little on the controller!), and I started taking photos. 

We couldn’t quite fit the whole school in the frame of view at that altitude, so I flew in a rough grid pattern until I had several photos of the whole school. Mission completed, with no crashes or other issues, I was feeling quite pleased with myself! 

Back home, I used a ‘photo stitch’ feature in Adobe Photoshop to join all the photos together, and voila! I had the single image. My teacher friend was very happy with the end result, and tells me the students had lots of fun using it to work out scale (and hearing about how the image was obtained!). 

Maybe next time the students might be able to be the pilots and create their own aerial imagery of the school!

About She Maps.

She Maps is Australia’s leading expert in drone and geospatial education. 

She Maps assist schools with the purchasing of drones, school-industry created drone and geospatial teaching resources and highly supportive teacher professional development.

 
You’re in Safe Hands!
She Maps is a CASA approved commercial operator to fly microdrones indoors with students and teachers. CASA holds commercial operators, to a higher standard than recreational users and educators. This means that She Maps has been assessed by CASA as having rigorous training and risk mitigation procedures in place.
 

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