Drones and Quadcopters

Today I went for my first flight with the DJI Mini SE and it feels very familiar, after flying a spark so frequently, until I crashed that drone. I would have replaced the spark but I didn’t because it would either cost two thirds to replace the old one, or cost a lot to buy a new drone, with batteries and the rest of the gear. I waited. I didn’t wait for four weeks, four months, or four seasons. I waited for two years, until I saw the DJI Mini SE was about to come out.

We are in ORCA day two in Switzerland and I crashed the drone. I also avoided the shops because of the behaviour I witnessed yesterday.

The weather is excellent at the moment. Sunny, warm, and without wind. These are perfect conditions for drone flying so I thought I’d take advantage. I forgot to put an SD card in the drone so instead of flying and trying to get video I put it in sports mode. I played in the field, flying forwards, backwards, going up, down and more. Eventually, I flew towards the trees and decided that I would get the drone to fly in between trees as I have done in the past.

Flying over Oeschinensee with an FPV drone looks nice. I went there as a child and the lake is distinct with its lake, green slopes, hills and that wall of rock on the other side. It’s above Kandersteg and there are a number of walks to be enjoyed in the area.

Flying a drone in such a place is great because it gives you a way of exploring the landscape either before you’ve been on a hike or afterwards. It also allows you to find new locations from which to take pictures or even to find a new climbing route. I haven’t looked at what climbs there are around there.

I ate lunch as I watched the footage of a drone flying over Hong Kong at night and at first I was confused as to whether the images were real or not. As you watch more of the video you see that everything is real. The depth of field is good and so is the exposure. There is no or very little noise from this being shot at night.

https://www.youtube.com/watch?v=gYO1uk7vIcc

The Mavic 2 Pro just came out and people are euphoric about the drone because of its one inch sensor, it’s ability to zoom and it’s omnidirectional systems keeping an eye on the environment below, behind, above and ahead of it. It also has a flying time of 31 minutes. 

I’m happy with the DJI Spark. Last Autumn as the nights shortened and work got in the way of flying the drone I felt disappointed that I would have to suspend the passion whilst waiting for the next summer to arrive. This summer came and it is now approaching an end and I haven’t flown as much as I would have expected to. It’s partially due to having to get the charger out, charge all the batteries and fly somewhere new that slowed me down. NFZs limit the number of places where you can fly. 

https://www.youtube.com/watch?v=icXbEiUg9i0

Yesterday I flew my drone despite the wind and I got some nice footage of a swiss flag fluttering with vineyards in the background. I then recharged all my batteries before heading out again. This time I headed up towards St George because there is a beautiful vista there where you can see the whole of the Léman. 

I passed by the field where I had seen people flying model helicopters, planes and drones and when they signalled for me to approach I did. On the ground they had a multitude of helicopters which they had flown on that day. 

Trying various drones

This year I finally bought a few drones to play with and DJI and Hubsan are currently my favourite brands. The most fun to fly indoors is the Hubsan Nano Q111 drone, or something to that effect. At first this is a hard and temperamental little drone to fly. Just getting it off the ground is a challenge., This challenge comes from the fact that it has no pilot assistance. It slews to the right and the left and it has no altitude hold. This means that constant little inputs are needed. As the battery depletes you need to give the drone more power simply to hover. With practice the drone is really fun and best of all I didn’t break any props. I only burned out two of the motors when the drone got caught in something. I tried flying the Q4 as well but the results were disappointing. I tried flying the Demon something by some brand and this was a flop. The problem with this drone is that the props are well protected against colliding with things but the struts are too fragile. Within just a flight or two I broke the strut to one of the props and it is now great at spinning in place rather than flying.

My most recent flight with the DJI Spark was fun. As I forgot the miniSD card I decided just to fly it in sports mode over some empty fields. I ended up flying over 4km within visual range. It was fast, responsive and behaved just as I wanted it to.

Indoor flying

Flying the drone indoors is possible. Thanks to its downward facing cameras and proximity sensors it detects when it flies too close to objects and stops. It does have the weakness that if it detects objects below it or objects ahead of it it will back and rise. As it has no upward looking sensors and no sensors looking behind or to the sides the risk of collisions increases. For these reasons flying indoors is more demanding. It also displaces a large volume of air. It will shift light objects so be careful what you fly over.

The Hubsan Nano Q4 H111 drone is a tiny drone

The Hubsan Nano Q4 H111 drone is a tiny drone. It is not much more than a flying circuit board with four engines, a battery and a cowling. It is very light and fits easily on the screen of an iphone SE, along with it’s controller. Such a small drone requires practice to fly properly. This is because there are no flight assists. When you take off you need to apply just the right amount of thrust to hover and you need to make small adjustments to keep it from drifting. With practice you gain control of the quadcopter.