Watched a show on PBS about the Me 262 a couple of days ago. Thankfully it wasn't developed, produced and used to its potential a couple of years earlier.
The 2023 Aviation Thread
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Watched a show on PBS about the Me 262 a couple of days ago. Thankfully it wasn't developed, produced and used to its potential a couple of years earlier.
Yes, the chord appears (to me, not being an aeronautical engineer) to be greater than necessary to just be a strut (not being a structural engineer either).
Ventucky Red
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Or maybe the strut is hollow and needs the girth to handle the stress?
Virgulino Ferreira
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veni vidi vici
Omne quod audimus est opinio, non res. Omnia videm
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The historic Boeing 747 is officially being retired
The Boeing 747, the jumbo jet that made air travel possible for the masses, is officially retired, with Boeing having delivered the last instance of its flagship model on Tuesday:
notthebee.com
I remember watching the first one fly into Miami last 60’s it was coming in over Key Biscayne westbound to MIA , it was huge and seemed like it was barely moving.
The little party deck bar was pretty cool.
Time flies too it seems ~~~~
Mark_K
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Here's a paper on the difference between Ph. III and Ph. IV of the concept which might help.
https://www.aiaa.org/docs/default-s...tmach080transonictruss-bracedwingaircraft.pdf
They increased the sweep and apparently extended the length of the strut so they can get a bit of lift out of it...but the thing is a necessary brace for the radically long, narrow chord thin wing. The concept is not about making biplanes again.
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"On June 21, 1972, Jean Boulet of France piloted an Aérospatiale SA 315B Lama helicopter to an absolute altitude record of 40,814 feet (12,440 m).[65] At that extreme altitude, the engine flamed out and Boulet had to land the helicopter by breaking another record: the longest successful auto
rotation in history.[66]" 😁
en.wikipedia.org
"On June 21, 1972, Jean Boulet of France piloted an Aérospatiale SA 315B Lama helicopter to an absolute altitude record of 40,814 feet (12,440 m).[65] At that extreme altitude, the engine flamed out and Boulet had to land the helicopter by breaking another record: the longest successful auto
rotation in history.[66]" 😁
Flight altitude record - Wikipedia
Ease the sheet.
ignoring stupid people is easy
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😬
"On June 21, 1972, Jean Boulet of France piloted an Aérospatiale SA 315B Lama helicopter to an absolute altitude record of 40,814 feet (12,440 m).[65] At that extreme altitude, the engine flamed out and Boulet had to land the helicopter by breaking another record: the longest successful auto
rotation in history.[66]" 😁
Flight altitude record - Wikipedia
Flame out?
More likely ran out of fuel...
justsomeguy!
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I wonder why they didn't spell llama correctly.
Eh, never mind. It's the French.
Waiex191
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At that altitude, seems like a flameout is possible. I've never flown a helicopter over 4000'.
See Level
Working to overcome my inner peace
Well, there probably won't be anyone going after his 'world's longest auto-rotation' record
Ease the sheet.
ignoring stupid people is easy
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Jet turbine?
The boffin calculating min weight for max height got it just right...
I wonder if a restart was attempted?
Ease the sheet.
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Must have had plenty of time to attempt restarts on the way down. If it was only a flameout seems like it should have been able to restart.
I had heard that the helo altitude record was same flight as the auto record, didn't know if it was myth or not. Interesting.
Wouldn't be surprised if some youtube daredevil was already trying to figure out how to break both records.
I had heard that the helo altitude record was same flight as the auto record, didn't know if it was myth or not. Interesting.
Wouldn't be surprised if some youtube daredevil was already trying to figure out how to break both records.
Waiex191
Member
I found it hard enough to tune radios in some of the helicopters I used to fly. They didn't have very good trim and were not hands-off stable. No idea how stable the Lama is and how many hands you need to get a good start. He could have run out of fuel, but excessive altitude is a valid reason for a flameout.
Pinnacle Airlines Flight 3701 - Wikipedia
justsomeguy!
Super Anarchist
"Stabile".
Ease the sheet.
ignoring stupid people is easy
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I found it hard enough to tune radios in some of the helicopters I used to fly. They didn't have very good trim and were not hands-off stable. No idea how stable the Lama is and how many hands you need to get a good start. He could have run out of fuel, but excessive altitude is a valid reason for a flameout.
Pinnacle Airlines Flight 3701 - Wikipedia
Not to be argumentative but, excessive altitude wasn't the problem, operating the engines outside of their envelope was.
Planes fly high all the time without engine problems.
Except maybe sr71's. And their problem is a shockwave issue, not a lack of air directly.
Waiex191
Member
Ok.
Anyway I found this article, interesting reading.
Ventucky Red
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Either way, those two pilots were screwed.... I would have chosen being screwed and being safe on the ground... I am sure the union would have worked through this.
Ventucky Red
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