Andy Gell
@andygell.bsky.social
#Yorkshire #birdwatching (especially raptors) and occasional #phonescoping with Opticron.
Art,Space and other stuff.
Proud Manxman 🇮🇲 living in God's own county.
Former RAF & airline pilot.
Location:
https://w3w.co/beyond.gigabytes.mayhem
But when you do it's usually brilliant and we all love you for it.
November 18, 2025 at 9:15 AM
But when you do it's usually brilliant and we all love you for it.
Source: Slide Rule Museum share.google/PdsYcTAHTN2D...
share.google
November 8, 2025 at 6:13 PM
Source: Slide Rule Museum share.google/PdsYcTAHTN2D...
Left picture: wind is plotted with a pencil on the plastic circle which can be rotated to planned headings to give drift and speed . Right picture: altitude and temperature corrections to be able to calculate distance/time.
November 8, 2025 at 6:10 PM
Left picture: wind is plotted with a pencil on the plastic circle which can be rotated to planned headings to give drift and speed . Right picture: altitude and temperature corrections to be able to calculate distance/time.
Not really. A few basic rules to follow to calculate corrected headings for forecast wind, altitude and temperature. Takes me back.
November 8, 2025 at 5:43 PM
Not really. A few basic rules to follow to calculate corrected headings for forecast wind, altitude and temperature. Takes me back.
Same. Only after I passed I thought it might be you. Ibis was on the main lake near the E reed bed path.
November 8, 2025 at 3:51 PM
Same. Only after I passed I thought it might be you. Ibis was on the main lake near the E reed bed path.
Did you say good morning to a guy in red on a mountain bike about 1130? Me!
November 8, 2025 at 3:18 PM
Did you say good morning to a guy in red on a mountain bike about 1130? Me!
Is that Slash at the back not wearing his usual Aviators?
November 5, 2025 at 10:17 AM
Is that Slash at the back not wearing his usual Aviators?
I've proposed this for my book club 2026 reads, I hope they select it. I've bought it anyway so will be reading it at some point.
November 3, 2025 at 11:43 AM
I've proposed this for my book club 2026 reads, I hope they select it. I've bought it anyway so will be reading it at some point.
No Lt Egret but did see one at Adel Dam this week.
November 1, 2025 at 10:52 AM
No Lt Egret but did see one at Adel Dam this week.
I had a pair of kingfishers further up Meanwood Valley and quite a few Grey Wagtails.
November 1, 2025 at 8:13 AM
I had a pair of kingfishers further up Meanwood Valley and quite a few Grey Wagtails.