60 knots in an Akula?

Kapitan · 03-03-06, 06:06 PM

Today ive done two dives both in the akula i went to flank at 550 meters and then blew the tanks, now normaly i could get to only 42 to 44 knots now im seeing 62 knots and even as high as 66 knots

IS THERE SOMETHING WRONG ?

im sure in real life no akula could hit even 50 knots.

Orm · 03-04-06, 04:45 AM

I just did the same test from 550 m at flank speed, and then emergency blow. I got a speed up to 73 knots when reaching the surface :hmm:

Kapitan · 03-04-06, 07:37 AM

huff had to be diffrent lol

there must be something wrong

Orm · 03-04-06, 08:05 AM

This sound very nice for escaping subrocs

Pirate · 03-04-06, 08:27 AM

Well, I don't think it is so unrealistic, after all you have all the speed from ahead flank plus all impulsion of the emergency blow.

Anyway much better than the more than 100knots that was hapenning before final 1.03 patch.

What I'm still concerned are the depth changes at slow speed that the sub starts to rise backwards and the torp. problems.

Kapitan · 03-04-06, 08:47 AM

Yes i know and the fact thesubs come up arse first doesnt help

Nexus7 · 03-04-06, 10:27 AM

I used E-Blow as last evasive maneuver last week diving Akula. While I am used to a progressive emersion this one was an explosive

. Instantly broke TA and reached the surface in a nothing.
This resulted in a succesfull evasion of the torp but ended in severe damage taken from surface ships

Usually I did E-Blow for say 10 seconds (when deep enuff) combined with change of course and then disactivated it to remain submerged. Yes it ain't much realistic maybe. On the other hand when else would one use it in DW except for evading?

bobterrius · 03-04-06, 11:04 AM

And what about that?

A seawolf at a speed higher than 100 knots?

It's normally?

Orm · 03-05-06, 04:11 AM

Testing with the Seawolf the same procedure, 40 knots at 2000 feet with an emergency blow. I got the speed of up to 72 knots when reaching the surface. Also, I saw a strange feature of a small balancing (stern-bow) when I was at flank speed, previous to the E-blow.

Nexus7 · 03-05-06, 01:56 PM

Well the balancing of the boat is not (yet) modelled

Three14 · 03-07-06, 09:57 AM

The 40kt (or whatever) limit is from the propulsion...but setting off the e-blow is like adding propulsion. It's not as if you're going 70 knots in the horizontal, but simply because you're going up pretty fast AND straight ahead pretty fast. I don't think it's necessarily realistic -- at the least it would have to be just short of super-human to control a sub under those conditions -- but I don't see how it's wrong on the part of the model.

I don't know how subs measure speed, but if they use something analogous to a pitot tube (it's a fancy straw that "feels" the air hitting it to report the speed), then it might not be realistic for the submarine to be able to report the high speeds.

Bellman · 03-07-06, 10:37 AM

If you go straight up the torp will more often than not follow - a little weave can make all the difference.

The EB is less easy to contol now, it seems, as someone said in SC you could initiate it and select a level off depth.
Now it just seems as if its s**t or bust !!

SUBMAN1 · 03-07-06, 10:57 AM

Have you ever seen the Los Angeles class sub poking out of the water so fast that it rises up like 3 stories before falling back down? That boat, if you figure it out, is moving much faster than 32 knots! Probably double if not more!

-S

Kapitan · 03-07-06, 11:33 AM

Depending on angle which for a 688i and ive seen a video of it the angle is about 70 degree's topps i doubt its faster than 40 to 44 knots your forgetting its a long boat.

Now immaigne a typhoon doing that

GunnersMate · 03-07-06, 04:12 PM

If the angle got too high wouldnt the MBT's spill out and fill with water creating a death dive ?

03-03-06, 06:06 PM	#1
Kapitan Sub Test Pilot Join Date: Mar 2005 Location: UK + Canada Posts: 7,130 Downloads: 77 Uploads: 7	60 knots in an Akula? Today ive done two dives both in the akula i went to flank at 550 meters and then blew the tanks, now normaly i could get to only 42 to 44 knots now im seeing 62 knots and even as high as 66 knots IS THERE SOMETHING WRONG ? im sure in real life no akula could hit even 50 knots. __________________ 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/

03-04-06, 04:45 AM	#2
Orm Torpedoman Join Date: Jun 2005 Location: Finland Posts: 116 Downloads: 0 Uploads: 0	I just did the same test from 550 m at flank speed, and then emergency blow. I got a speed up to 73 knots when reaching the surface :hmm: __________________ Orm

03-04-06, 07:37 AM	#3
Kapitan Sub Test Pilot Join Date: Mar 2005 Location: UK + Canada Posts: 7,130 Downloads: 77 Uploads: 7	huff had to be diffrent lol there must be something wrong __________________ 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/

03-04-06, 08:05 AM	#4
Orm Torpedoman Join Date: Jun 2005 Location: Finland Posts: 116 Downloads: 0 Uploads: 0	This sound very nice for escaping subrocs __________________ Orm

03-04-06, 08:27 AM	#5
Pirate Lieutenant Join Date: Sep 2003 Location: Oeiras, PORTUGAL Posts: 258 Downloads: 152 Uploads: 0	Well, I don't think it is so unrealistic, after all you have all the speed from ahead flank plus all impulsion of the emergency blow. Anyway much better than the more than 100knots that was hapenning before final 1.03 patch. What I'm still concerned are the depth changes at slow speed that the sub starts to rise backwards and the torp. problems. __________________

03-04-06, 08:47 AM	#6
Kapitan Sub Test Pilot Join Date: Mar 2005 Location: UK + Canada Posts: 7,130 Downloads: 77 Uploads: 7	Yes i know and the fact thesubs come up arse first doesnt help __________________ 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/

03-04-06, 10:27 AM	#7
Nexus7 Commander Join Date: Jun 2004 Location: Switzerland Posts: 469 Downloads: 2 Uploads: 0	I used E-Blow as last evasive maneuver last week diving Akula. While I am used to a progressive emersion this one was an explosive . Instantly broke TA and reached the surface in a nothing. This resulted in a succesfull evasion of the torp but ended in severe damage taken from surface ships Usually I did E-Blow for say 10 seconds (when deep enuff) combined with change of course and then disactivated it to remain submerged. Yes it ain't much realistic maybe. On the other hand when else would one use it in DW except for evading? __________________ If you are going through hell... keep going (Winston Churchill)

03-04-06, 11:04 AM	#8
bobterrius Swabbie Join Date: Jan 2006 Location: La Ciotat (France) Posts: 11 Downloads: 0 Uploads: 0	And what about that? A seawolf at a speed higher than 100 knots? It's normally? __________________ Quand on veut, on peut!!!

03-05-06, 04:11 AM	#9
Orm Torpedoman Join Date: Jun 2005 Location: Finland Posts: 116 Downloads: 0 Uploads: 0	Testing with the Seawolf the same procedure, 40 knots at 2000 feet with an emergency blow. I got the speed of up to 72 knots when reaching the surface. Also, I saw a strange feature of a small balancing (stern-bow) when I was at flank speed, previous to the E-blow. __________________ Orm

03-05-06, 01:56 PM	#10
Nexus7 Commander Join Date: Jun 2004 Location: Switzerland Posts: 469 Downloads: 2 Uploads: 0	Well the balancing of the boat is not (yet) modelled __________________ If you are going through hell... keep going (Winston Churchill)

03-07-06, 09:57 AM	#11
Three14 Seaman Join Date: Feb 2001 Location: Hong Kong Posts: 39 Downloads: 0 Uploads: 0	The 40kt (or whatever) limit is from the propulsion...but setting off the e-blow is like adding propulsion. It's not as if you're going 70 knots in the horizontal, but simply because you're going up pretty fast AND straight ahead pretty fast. I don't think it's necessarily realistic -- at the least it would have to be just short of super-human to control a sub under those conditions -- but I don't see how it's wrong on the part of the model. I don't know how subs measure speed, but if they use something analogous to a pitot tube (it's a fancy straw that "feels" the air hitting it to report the speed), then it might not be realistic for the submarine to be able to report the high speeds.

03-07-06, 10:37 AM	#12
Bellman Sea Lord Join Date: Feb 2004 Posts: 1,945 Downloads: 220 Uploads: 0	If you go straight up the torp will more often than not follow - a little weave can make all the difference. The EB is less easy to contol now, it seems, as someone said in SC you could initiate it and select a level off depth. Now it just seems as if its s**t or bust !! __________________ Liberty, Equality, Fraternity

03-07-06, 10:57 AM	#13
SUBMAN1 Rear Admiral Join Date: Apr 2005 Posts: 11,866 Downloads: 0 Uploads: 0	Have you ever seen the Los Angeles class sub poking out of the water so fast that it rises up like 3 stories before falling back down? That boat, if you figure it out, is moving much faster than 32 knots! Probably double if not more! -S __________________

03-07-06, 11:33 AM	#14
Kapitan Sub Test Pilot Join Date: Mar 2005 Location: UK + Canada Posts: 7,130 Downloads: 77 Uploads: 7	Depending on angle which for a 688i and ive seen a video of it the angle is about 70 degree's topps i doubt its faster than 40 to 44 knots your forgetting its a long boat. Now immaigne a typhoon doing that __________________ 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, 04:12 PM	#15
GunnersMate Lieutenant Join Date: Feb 2006 Location: USS Sea Tiger Posts: 251 Downloads: 4 Uploads: 0	If the angle got too high wouldnt the MBT's spill out and fill with water creating a death dive ? __________________ \"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.