it is a flat spin, but only briefly at 0:06. The glider self recovers to a nose down position when there's no airflow on the tailplane.

sorry man but no. it is a falt spin and you can get of flat spin by conteracting the rotacion force. in takes a lot of strengh to do it but it works

@@EngineEnginer Let me tell you this, that was a normal spin, flat spin would mean that his centre of gravity would be further behind pushing the planes nose up, with that you loose all stream on every control surfaces, meaning 0 control. The only reason fighter jets can get out is due to their immense power basically pushing them out. Flat spin would also mean that the nose would show further up into the sky not down or slightly down like it was for them.

yep.. this is NOT a flat spin as evidenced by nose down attitude@@EngineEnginer

correct... this is not a flat spin.. because the nose is clearly down@@crazy8711

@@sidb9540 yep waching video 3rd time this looks like normal spin

You ever read the Bible?

It is a flat spin, but only around 0:06 , then the nose pitches down and develops in an ordinary spin, followed by ordinary recovery. I suspect that it's really hard to sustain a flat spin in a glider that is naturally nose heavy when the tailplane is no longer providing a compensating lift, like it seems to be the case here.

never use airbrakes on high energy maneuvers. It will introduce mechanical stresses due to uneven lift distribution in the wings and you will break them.

@@StefanoBorini That is very good advice generally, my old books are wrong about this recommending using airbrakes (spoilers for those so inclined) during high g pullups etc. High g:s at high airspeed will load the wing unfavorably and unevenly. The stress cracks seen on old gliders on the corners of brake boxes are often due to this. Furthermore POH permitted airspeed brakes exrended is lower than Vne for many types. Current recommendation is to pull max g:s + or - inside the flight envelope to recover from shitty situations. A puch or K21 has a lot of drag during high g. During a high energy flatspin (only about half a turn in the video?) the wings are lightly loaded and on some types extending the brakes can save a lot of altitude due to the monumental sink rate as I understand it. Some competition pilots also use airbrakes safely during 0 g manuevers like downline rolls. Never tried that... But it is supposedly useful for low Vne aerobatic gliders like Pilatuses. I still wonder if he used the airbrakes for stopping the flat part of the spin, I think the sound indicates it.

the glider in the video is a swift s-1, it's certified for +10g / -7,5g, so not even that high of a g-load. i've seen videos of people pulling 9gs in a swift...

@nob0dy27_ do gliders also have a systemthat yells "over g" when you go over the limit?

This isn’t high stress. Wings are the strongest part of an aircraft. We found completely destroyed wreckage with the wings still attached !

Swift S1, according to other comments. Stressed for +/-10g.

Probably after a few turns.

Theres like a ton of dependencies like distance to the airport, altitude, glider type, yadda yadda but usually 1 full rotation or sometimes 2 is enough

Yes, especially rudder when that (depending on type) can be the problem in recovery.

It looks like he started in a dive and then did a rapid roll to produce high momentum around the vertical axis. He then re-oriented the glider to horizontal in an accelerated stall with full pro-spin rudder. The angular momentum is then aligned with the yaw axis of the aircraft while fully stalled. My guess is that it would decay into a regular spin over time. Watching this makes me kinda wantta puke. Guess that's why I never got into aerobatics.

@@MrSunrise- You got the right idea, the fox and swift are very prone to flat spin on exit from a flick IF the stick is held fully back a bit to long after initiating the flick. it needs to be released somewhat before exit. Otherwise the glider transitions into a high energy flat spin which You have to sit out for some turns, exiting by normal spin is best. Altitude loss is impressive. There is an even better video of this in a fox, just cant find it.

I have a feeling it’s a glider

Swift S-1

Swift S1.Unlimited aerobatic glider made in Poland 🇵🇱

everything has been carefully thought out and counted. 30m

this glider g-limit is +11g and -7g, so I don’t think complete overhaul is necessary😉

Pozdrowienia dla Ciebie przyjadę na Żar jeśli tylko będzie okazja !

I look forward to the next season 🙃

If I'm not mistaken he just retierd recently. He was one of the senior captins in Polish LOT airline.

Olbrzymie podziękowania 🙂 obiecuję w nowym roku jeszcze więcej akrobacji na szybowcach.