So Siri was missing from my iPad Air 2 and having searched and reviewed a number of google results I still could not find and answer. I was surprised by the number of people experiencing the same problem. Basically Siri was appearing in settings and although listed in restricted apps, that was not the problem.
If you have a newer version iPad that should have Siri and you can't find it even after a reset and backup, the only other explanation is that the iPad is using a restricted ecosystem. For example, a profile set up by your work which restricts Siri. As soon as I removed the work profile, Siri was back again.
So I threw in the towel and decided to get a Nikon Coolpix p900. Got mine for £360 used twice only. The zoom is incredible and I took my camera to the nearest airport to do a bit of plane spotting. The weather was humid and overcast, with light showers. I was about 2.5km away. I am not a professional photographer and I did not use a tripod, otherwise the photos would have been much better. Enjoy!
Without zoom this is how far i was. Can't even see
Now you can just about see the orange "EasyJet" planes
Full zoom, including digital.
Caught this one before it disappeared into the clouds