60 knots in an Akula? - Page 2

Kapitan · 03-07-06, 04:38 PM

Well no the air presure inside expands as you go up, plus the intake for water is on the submarine belly.

SUBMAN1 · 03-07-06, 05:11 PM

Well considering that it is a roller coaster ride for the occupants, I assume it is much faster than 44 knots. Matter of fact, this is the demo the 688i was doing that took out that japanese tour boat a while back.

-S

GunnersMate · 03-07-06, 05:16 PM

Imagine an E-blow on an Alfa going 45kt!

"Is there a mission today Plesetsk Cosmodrome?"
"....."

SUBMAN1 · 03-07-06, 05:27 PM

Lets put this into perspective. Here is an image of the USS Houston popping out of the water extremely fast - Do you realize that this sub is 360 feet long? Does it make sense to you that this means that this nose is sticking 100 feet in the air? This is not 20 feet here - but 100 feet in the air! 30 meters!

-S

Kapitan · 03-07-06, 05:30 PM

Yes i know this but to get that result you dont nessaserily have to be going at flank to achieve this, now immagine a typhoon !

sonar732 · 03-07-06, 05:40 PM

Quote:

Originally Posted by Kapitain

Yes i know this but to get that result you dont nessaserily have to be going at flank to achieve this, now immagine a typhoon !

Kaptain,

You are dead wrong. If it's an indication, when the boat breaches the surface and "falls back down", the crew actually "lifts" off their seats from the momentum. Also, while the EBT is administered, everyone either grabs a bar, or buckles themselves to their seats.

EDIT: To add to your prospective, my experience was on an Ohio Class!

Kapitan · 03-07-06, 05:56 PM

I know that its called negative G like being on a rollercoaster when one minuet your stuck fast to the seat and the next your being pulled out.

what i ment by my statement is you dont have to be going fast to plonk your nose out of the water Eblow should give you that up angle and half speed or a tad faster.

sonar732 · 03-07-06, 06:42 PM

Quote:

Originally Posted by Kapitain

what i ment by my statement is you dont have to be going fast to plonk your nose out of the water

For one, a captain wouldn't "plonk" the nose out of the water unless they are performing a EMBT. To "plonk" the nose out that far, the EMBT is the only way.

TLAM Strike · 03-07-06, 07:00 PM

Quote:

Originally Posted by SUBMAN1

When it comes to E-Blows I've always liked this image better...

Do that with a nuc!

Of course there is the USS Chopper:
http://www.geocities.com/jaob/deepdive.htm

SUBMAN1 · 03-08-06, 10:43 AM

Quote:

Originally Posted by TLAM Strike

Quote:

Originally Posted by SUBMAN1

When it comes to E-Blows I've always liked this image better...

Do that with a nuc!

Of course there is the USS Chopper:
http://www.geocities.com/jaob/deepdive.htm

Wow! (Speechless)

-S

SUBMAN1 · 03-08-06, 10:56 AM

Lets do the math here on the subject and bury it once and for all. This is only rough estimating, but it is fairly accurate.

688i is 360 feet long, which makes it at least 100 feet to the sail.

The videos I have seen of an EBT show the water traveling from the front of the nose back to the sail in less than a second, which means it is traveling faster than 100 feet per second.

5280 feet = 1 mile

If it were 'only' traveling at 100 feet per second, the math works out to traveling 6000 feet a minute, or over 60 MPH at 68.181816 MPH, which equates to 59.808609 knots.

So we know that it is traveling faster than 60 knots just by the video images. I estimate that 75 knots with an EBT is very much a possibility and a reality. Possibly even faster.

-S

Bellman · 03-08-06, 02:28 PM

Nice work Subman1

GunnersMate · 03-08-06, 02:29 PM

Look if you bubbleheads really want to be an airplane get a P3 !

Kapitan · 03-08-06, 04:29 PM

Break down your working's out and show us in detail how you got that im intrigued, cause that means the akula tops out at over 70 mph

sonar732 · 03-08-06, 04:33 PM

Quote:

Originally Posted by Kapitain

Break down your working's out and show us in detail how you got that im intrigued, cause that means the akula tops out at over 70 mph

I'll break it down for you Kap...let it go, you don't know what you're talking about.

03-07-06, 04:38 PM	#16
Kapitan Sub Test Pilot Join Date: Mar 2005 Location: UK + Canada Posts: 7,130 Downloads: 77 Uploads: 7	Well no the air presure inside expands as you go up, plus the intake for water is on the submarine belly. __________________ DONT FORGET if you like a post to nominate it by using the blue diamond Find out about Museum Ships here: https://www.museumships.us/ Flickr for all my pictures: https://www.flickr.com/photos/131313936@N03/ Navy general board articles: https://www.navygeneralboard.com/author/aegis/

03-07-06, 05:11 PM	#17
SUBMAN1 Rear Admiral Join Date: Apr 2005 Posts: 11,866 Downloads: 0 Uploads: 0	Well considering that it is a roller coaster ride for the occupants, I assume it is much faster than 44 knots. Matter of fact, this is the demo the 688i was doing that took out that japanese tour boat a while back. -S __________________

03-07-06, 05:16 PM	#18
GunnersMate Lieutenant Join Date: Feb 2006 Location: USS Sea Tiger Posts: 251 Downloads: 4 Uploads: 0	Imagine an E-blow on an Alfa going 45kt! "Is there a mission today Plesetsk Cosmodrome?" "....." __________________ \"Sir they just fired an Exocet at us!\" \"Very well, Bosn pipe Sweepers\" I\'m having trouble with the radar, sir. What\'s wrong with it? I\'ve lost the bleeps, I\'ve lost the sweeps, and I\'ve lost the creeps.

03-07-06, 05:27 PM	#19
SUBMAN1 Rear Admiral Join Date: Apr 2005 Posts: 11,866 Downloads: 0 Uploads: 0	Lets put this into perspective. Here is an image of the USS Houston popping out of the water extremely fast - Do you realize that this sub is 360 feet long? Does it make sense to you that this means that this nose is sticking 100 feet in the air? This is not 20 feet here - but 100 feet in the air! 30 meters! -S __________________

03-07-06, 05:30 PM	#20
Kapitan Sub Test Pilot Join Date: Mar 2005 Location: UK + Canada Posts: 7,130 Downloads: 77 Uploads: 7	Yes i know this but to get that result you dont nessaserily have to be going at flank to achieve this, now immagine a typhoon ! __________________ DONT FORGET if you like a post to nominate it by using the blue diamond Find out about Museum Ships here: https://www.museumships.us/ Flickr for all my pictures: https://www.flickr.com/photos/131313936@N03/ Navy general board articles: https://www.navygeneralboard.com/author/aegis/

03-07-06, 05:56 PM	#22
Kapitan Sub Test Pilot Join Date: Mar 2005 Location: UK + Canada Posts: 7,130 Downloads: 77 Uploads: 7	I know that its called negative G like being on a rollercoaster when one minuet your stuck fast to the seat and the next your being pulled out. what i ment by my statement is you dont have to be going fast to plonk your nose out of the water Eblow should give you that up angle and half speed or a tad faster. __________________ DONT FORGET if you like a post to nominate it by using the blue diamond Find out about Museum Ships here: https://www.museumships.us/ Flickr for all my pictures: https://www.flickr.com/photos/131313936@N03/ Navy general board articles: https://www.navygeneralboard.com/author/aegis/

03-08-06, 10:56 AM	#26
SUBMAN1 Rear Admiral Join Date: Apr 2005 Posts: 11,866 Downloads: 0 Uploads: 0	Lets do the math here on the subject and bury it once and for all. This is only rough estimating, but it is fairly accurate. 688i is 360 feet long, which makes it at least 100 feet to the sail. The videos I have seen of an EBT show the water traveling from the front of the nose back to the sail in less than a second, which means it is traveling faster than 100 feet per second. 5280 feet = 1 mile If it were 'only' traveling at 100 feet per second, the math works out to traveling 6000 feet a minute, or over 60 MPH at 68.181816 MPH, which equates to 59.808609 knots. So we know that it is traveling faster than 60 knots just by the video images. I estimate that 75 knots with an EBT is very much a possibility and a reality. Possibly even faster. -S __________________

03-08-06, 02:28 PM	#27
Bellman Sea Lord Join Date: Feb 2004 Posts: 1,945 Downloads: 220 Uploads: 0	Nice work Subman1 __________________ Liberty, Equality, Fraternity

03-08-06, 02:29 PM	#28
GunnersMate Lieutenant Join Date: Feb 2006 Location: USS Sea Tiger Posts: 251 Downloads: 4 Uploads: 0	Look if you bubbleheads really want to be an airplane get a P3 ! __________________ \"Sir they just fired an Exocet at us!\" \"Very well, Bosn pipe Sweepers\" I\'m having trouble with the radar, sir. What\'s wrong with it? I\'ve lost the bleeps, I\'ve lost the sweeps, and I\'ve lost the creeps.

03-08-06, 04:29 PM	#29
Kapitan Sub Test Pilot Join Date: Mar 2005 Location: UK + Canada Posts: 7,130 Downloads: 77 Uploads: 7	Break down your working's out and show us in detail how you got that im intrigued, cause that means the akula tops out at over 70 mph __________________ DONT FORGET if you like a post to nominate it by using the blue diamond Find out about Museum Ships here: https://www.museumships.us/ Flickr for all my pictures: https://www.flickr.com/photos/131313936@N03/ Navy general board articles: https://www.navygeneralboard.com/author/aegis/