sigmoid.social is one of the many independent Mastodon servers you can use to participate in the fediverse.
A social space for people researching, working with, or just interested in AI!

Server stats:

602
active users

#aviation

59 posts42 participants6 posts today

Not confirmed, but if you hear a jarring crash of a space rocket into the hills tonight at 2:31am, it appears SpaceX is (unusually, I might add) planning on landing a rocket very close to shore in Los Angeles/Ventura County. Not too much margin if things go wrong. Going to be one helluva sonic boom.

Continued thread

Installed the new rudder links! It’s so much better. I actually moved my seat back one tab (third image shows the copilot seat, which is all the way back. The pilot’s seat is now at the center position).

Only downside is that my rudder lock is slightly less effective. It’s really easy for it to slide up on the control stick now. So I’ll use the seat belt to hold the stick in place, which wasn’t necessary before (though still a good idea).

Replied in thread

@Jgbird

This photo tells us something important about aerodynamics for wings.

Look at the tip feathers. They are hardly bent, and feathers are flimsy. There is no lift being generated at the bird's wingtips.

My glider generates lift at the tips...and because of that my glider needs a rudder/vertical fin in order to turn.

Birds don't have vertical fins/rudders, but they turn just fine.

youtu.be/Hr0I6wBFGpY?t=238

en.wikipedia.org/wiki/Prandtl-

The kind of wing the Wright Brothers used...made a rudder/vertical fin mandatory. We had to unlearn that in order to make a plane that flies like a bird.

The single seat glider I am building is a far cry from a Boeing 787, but there are still some commonalities. I have switches of various types that control different aspects of the glider's operation.

This video shows three switches on my instrument panel. The master switch is entirely unguarded, and a casual bump or incorrect movement can flip the switch. The next two switches have different types of guards. The second switch requires you to pull back on the switch to get over a mechanical bar that prevents accidental flipping. The third switch is entirely covered with a bright red guard that must be first lifted before you can access the switch. Now that I think of it, I may want to add some sort of guard to the (first) master switch because it turns on and off all electrical systems.

#Aviation #AI171

prudence au sujet du Dreamliner indien (VT-ANB / Air India) :
page 6 du rapport préliminaire est mentionné un bulletin de la FAA (SAIB nº NM-18-33 du 17 décembre 2018)

La sécurité des 2 boutons d'arrêt carburant est parfois livrée désactivée. On peut alors les bouger accidentellement. L'inspection n'était pas obligatoire et la compagnie indienne a choisi de ne pas vérifier.

Donc ce n'est donc pas forcément un suicide du copilote (d'autant qu'il nie vocalement y avoir touché)