Who / What / Where Game - Page 1032

Catfish · 02-04-21, 05:55 PM

Ok I guess that's exact enough

Sorry Budddhaid

"By 1939, eighteen injection heads in two concentric circles at the head of the 0.12-inch thick sheet-steel chamber, were used to make the 25 ton motor."

That is the main invention, apart from the turbo pump (located elsewhere and not shown in the picture).
The photo shows two ruined injection heads in the former "Brennkammer"/ combustion chamber (ruined due to a 'Flammabriss'/flame-cutoff and the following crash). So it is part of the "18-pot combustion chamber" of the A4.

A single injection head

The idea was to keep the the flame and fireball away from the atomizers (lose direct contact), to keep them cool enough and not melt, having the latter cooled by alcohol before it ignited in the burning chamber (the chamber also simply called Ofen, or 'oven').
Before this, the nozzles and atomizer jets often gave in under the heat.
After this change, the burning chamber was kept cool enough for a long time of propulsion, under full load.

https://translate.google.com/transla...aketenantrieb/

Interesting enough, the turbo pump used in the SpaceX 'Falcon 9' looks almost the same as the one used in the A4

https://physik.cosmos-indirekt.de/Ph...Turbopumpe.jpg

The A4 was the first man-made rocket that was able to rise above earth's atmosphere up to appx 106 kilometers in a vertical test 'shot', still during the war. There were lot of people involved in developing this rocket, and especially its liquid fuel drive. This was much more complicated than a 'booster' rocket with solid fuel, but had the advantage to be able to be regulated (fuel consisting of alcohol mixed with water, and liquid oxygen ("LOx"). Space X still uses Methanol and LOx thrusters. Also the bell-shaped thrusters used in the Saturn V are not very far from the initial A4 design).

The development and use of the A4 (=Aggregat 4) - (called V2 (=Vergeltungswaffe/'revenge weapon') by propaganda minister Goebbels) cost the most civilian lives ever caused by a single weapon type - apart from the atom bomb.
It was not only the belligerent use against London, Antwerpen and other targets, but some 50,000 civilian concentration camp prisoners died to produce this rocket. There were more than 3000 built, after the raid on Peenemünde production was transferred to the infamous "Mittelwerk", a hidden cave-like underground production facility.

The initial idea of Hermann Oberth was to invent a rocket that could leave the earth's atmosphere. He had read the Jules Verne books about reaching the moon, and soon found out that the method Verne had proposed would not work.
After serving in WW1, being wounded, then working as a paramedic, he had the idea that a rocket would be the ultimate weapon to stop all wars.
If an unstoppable rocket could reach the government of an aggressive nation in no time, all wars would be futile. In a way he was later proven right, with what was then called nuclear deterrence.
Wernher von Braun had been his scholar, at the university. Almost of the german rocket scientists later worked for the USA, developing the Redstone and later Saturn V rockets.

Over to Aktungbby.

Buddahaid · 02-04-21, 06:04 PM

Sorry I was buried in conference calls. I need a couple of hours to post something I've already prepared. The continuum remains intact!

Aktungbby · 02-04-21, 07:20 PM

Quote:

Originally Posted by Buddahaid

Sorry I was buried in conference calls. I need a couple of hours to post something I've already prepared. The continuum remains intact!

U think U've got problems! Elder abuse starts at 70. My drivers license is due 2 expire and as I'm turning 70, I've got to do the full monte in person tomorrow. Written test; eye test; thumbprint; and the license is to be a REALid suitable for boarding an aircraft....even though I've a passport booklet and passport card which is considered Federal 'real ID'. I need also to present the title to my house; a tax 1099; the passport card; and a vehicle or boat current registration (4 forms of ID) to get the damn license...just making the appointment on line was aggravating enough to a man of the 20th not the 21st century!!

all while winning at WWW!!??

talk about multitasking and goin' downtown to get the DMV driver handbook to prep for the test...

Plus i wonder how much extra they charge for real ID over the $38.00 for a regular license I've had for 54 years

rant ended.... Ill have something shortly.

Buddahaid · 02-04-21, 07:26 PM

Quote:

Originally Posted by Aktungbby

U think U've got problems! Elder abuse starts at 70. My drivers license is due 2 expire and as I'm turning 70, I've got to do the full monte in person tomorrow. Written test; eye test; thumbprint; and the license is to be a REALid suitable for boarding an aircraft....even though I've a passport booklet and passport card which is considered Federal 'real ID'. I need also to present the title to my house; a tax 1099; the passport card; and a vehicle or boat current registration (4 forms of ID) to get the damn license...just making the appointment on line was aggravating enough to a man of the 20th not the 21st century!!

all while winning at WWW!!??

talk about multitasking and goin' downtown to get the DMV driver handbook to prep for the test...

Plus i wonder how much extra they charge for real ID over the $38.00 for a regular license I've had for 54 years

rant ended.... Ill have something shortly.

Been there and you will also register to vote again, but hey, all the testing is done on computer terminals to weed out the relics.....

Buddahaid · 02-04-21, 07:27 PM

Okay then what is this thing?

Aktungbby · 02-05-21, 12:03 AM

does it fly?

Catfish · 02-05-21, 03:07 AM

I see you changed the winner identity(?), ok if you are ok with it

A manned device?

skidman · 02-05-21, 04:40 AM

A glider like the ME321?

Buddahaid · 02-05-21, 06:51 AM

Quote:

Originally Posted by Aktungbby

does it fly?

Oops my obvious mistake. I'll flip it back next time.

It does fly.

Buddahaid · 02-05-21, 06:52 AM

Quote:

Originally Posted by Catfish

I see you changed the winner identity(?), ok if you are ok with it

A manned device?

Yes, manned.

Buddahaid · 02-05-21, 06:53 AM

Quote:

Originally Posted by skidman

A glider like the ME321?

Not a glider.

skidman · 02-05-21, 06:56 AM

Pre WW2?

Buddahaid · 02-05-21, 07:06 AM

Quote:

Originally Posted by skidman

Pre WW2?

Yes but not that variant.

u crank · 02-05-21, 07:10 AM

Is this a combat aircraft?

Buddahaid · 02-05-21, 07:11 AM

Yes it is.

02-04-21, 05:55 PM	#15466
Catfish Dipped Squirrel Operative Join Date: Sep 2001 Location: ..where the ocean meets the sky Posts: 16,913 Downloads: 38 Uploads: 0	Ok I guess that's exact enough Sorry Budddhaid "By 1939, eighteen injection heads in two concentric circles at the head of the 0.12-inch thick sheet-steel chamber, were used to make the 25 ton motor." That is the main invention, apart from the turbo pump (located elsewhere and not shown in the picture). The photo shows two ruined injection heads in the former "Brennkammer"/ combustion chamber (ruined due to a 'Flammabriss'/flame-cutoff and the following crash). So it is part of the "18-pot combustion chamber" of the A4. A single injection head The idea was to keep the the flame and fireball away from the atomizers (lose direct contact), to keep them cool enough and not melt, having the latter cooled by alcohol before it ignited in the burning chamber (the chamber also simply called Ofen, or 'oven'). Before this, the nozzles and atomizer jets often gave in under the heat. After this change, the burning chamber was kept cool enough for a long time of propulsion, under full load. https://translate.google.com/transla...aketenantrieb/ Interesting enough, the turbo pump used in the SpaceX 'Falcon 9' looks almost the same as the one used in the A4 https://physik.cosmos-indirekt.de/Ph...Turbopumpe.jpg The A4 was the first man-made rocket that was able to rise above earth's atmosphere up to appx 106 kilometers in a vertical test 'shot', still during the war. There were lot of people involved in developing this rocket, and especially its liquid fuel drive. This was much more complicated than a 'booster' rocket with solid fuel, but had the advantage to be able to be regulated (fuel consisting of alcohol mixed with water, and liquid oxygen ("LOx"). Space X still uses Methanol and LOx thrusters. Also the bell-shaped thrusters used in the Saturn V are not very far from the initial A4 design). The development and use of the A4 (=Aggregat 4) - (called V2 (=Vergeltungswaffe/'revenge weapon') by propaganda minister Goebbels) cost the most civilian lives ever caused by a single weapon type - apart from the atom bomb. It was not only the belligerent use against London, Antwerpen and other targets, but some 50,000 civilian concentration camp prisoners died to produce this rocket. There were more than 3000 built, after the raid on Peenemünde production was transferred to the infamous "Mittelwerk", a hidden cave-like underground production facility. The initial idea of Hermann Oberth was to invent a rocket that could leave the earth's atmosphere. He had read the Jules Verne books about reaching the moon, and soon found out that the method Verne had proposed would not work. After serving in WW1, being wounded, then working as a paramedic, he had the idea that a rocket would be the ultimate weapon to stop all wars. If an unstoppable rocket could reach the government of an aggressive nation in no time, all wars would be futile. In a way he was later proven right, with what was then called nuclear deterrence. Wernher von Braun had been his scholar, at the university. Almost of the german rocket scientists later worked for the USA, developing the Redstone and later Saturn V rockets. Over to Aktungbby. __________________ >^..^<)))>{ All generalizations are wrong. Last edited by Catfish; 02-04-21 at 06:12 PM.*

02-04-21, 06:04 PM	#15467
Buddahaid Shark above Space Chicken Join Date: Jun 2008 Posts: 8,576 Downloads: 160 Uploads: 0	Sorry I was buried in conference calls. I need a couple of hours to post something I've already prepared. The continuum remains intact! __________________ "However vast the darkness, we must provide our own light." Stanley Kubrick "Tomorrow belongs to those who can hear it coming." David Bowie

02-04-21, 07:27 PM	#15470
Buddahaid Shark above Space Chicken Join Date: Jun 2008 Posts: 8,576 Downloads: 160 Uploads: 0	Okay then what is this thing? __________________ "However vast the darkness, we must provide our own light." Stanley Kubrick "Tomorrow belongs to those who can hear it coming." David Bowie

02-05-21, 12:03 AM	#15471
Aktungbby Gefallen Engel U-666 Join Date: Jul 2013 Location: On a tilted, overheated, overpopulated spinning mudball on Collision course with Andromeda Galaxy Posts: 27,999 Downloads: 22 Uploads: 0	does it fly? __________________ "Only two things are infinite; The Universe and human squirrelyness; and I'm not too sure about the Universe"

02-05-21, 03:07 AM	#15472
Catfish Dipped Squirrel Operative Join Date: Sep 2001 Location: ..where the ocean meets the sky Posts: 16,913 Downloads: 38 Uploads: 0	I see you changed the winner identity(?), ok if you are ok with it A manned device? __________________ >^..^<*)))>{ All generalizations are wrong.

02-05-21, 04:40 AM	#15473
skidman Ace of the Deep Join Date: Dec 2012 Location: Near the Dutch mountains Posts: 1,147 Downloads: 85 Uploads: 0	A glider like the ME321? __________________ "In the beginning the Universe was created. This has made a lot of people very angry and been widely regarded as a bad move.” (Douglas Adams)

02-05-21, 06:56 AM	#15477
skidman Ace of the Deep Join Date: Dec 2012 Location: Near the Dutch mountains Posts: 1,147 Downloads: 85 Uploads: 0	Pre WW2? __________________ "In the beginning the Universe was created. This has made a lot of people very angry and been widely regarded as a bad move.” (Douglas Adams)

02-05-21, 07:10 AM	#15479
u crank Old enough to know better Join Date: Dec 2011 Location: Prince Edward Island Posts: 11,567 Downloads: 136 Uploads: 0	Is this a combat aircraft? __________________ “Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying.” ― Arthur C. Clarke

02-05-21, 07:11 AM	#15480
Buddahaid Shark above Space Chicken Join Date: Jun 2008 Posts: 8,576 Downloads: 160 Uploads: 0	Yes it is. __________________ "However vast the darkness, we must provide our own light." Stanley Kubrick "Tomorrow belongs to those who can hear it coming." David Bowie