Crazy Ivan???

[Kumando]

Hi i would like to know in what this is about, and if it can be uses in DW.

[DivingWind]

Crazy Ivan is a sharp turn to see if there is someone in the sonar baffle.Of course you dont need to performe this manoeuvre if you have towed array.
But if sub doesnt have towed array(for example KILO),it is good idea to do Crazy Ivan regularly.

My question is... Do they really call it Crazy Ivan or was it just in the movie "Hunt for the Red October"?

[MaxRiga]

My question is... Do they really call it Crazy Ivan or was it just in the movie "Hunt for the Red October"?

it was also in the movie - Akula2 ))))
by the way - vernite sushku obratno! :)))

[Kumando]

Thats what confused me in Red October, a sub with that kind of technology didint have towed sonar array?

[Molon Labe]

Smeely ruskie kapitan!

[Kumando]

Smeely ruskie kapitan!

??? :huh:

[Molon Labe]

A foreign languages prof. recently told me 'smeely' means 'brave,' but damn it sounds funny in English!

[DivingWind]

pizdec!

[abc]

http://en.wikipedia.org/wiki/Crazy_Ivan

[OKO]

Towed array existed when red october was produced.
But this information wasn't a public information.
Resulting in using an obsolete manoeuver on this kind of ships.

[Kapitan]

a crazy ivan :

slow down to a stop wait fo a min or two then speed up to say 24 knots sharply turn left or right doesnt matter which then procead to travel back to where you came from

obviously this is far obsolete but hey its fun

it isnt advisable for the masts and towed array to be extended while monover being done

[darksythe]

@ diving wind Love your sig! :rotfl:

[DivingWind]

Thanks! :D

[Kapitan]

looks just like my AK47

[Wim Libaers]

looks just like my AK47

Well, any AK-47 tends to look like an AK-47 ;)

[Kapitan]

not true at all some have grenade launchers some collapsible stocks some no stocks at all so nope

[swimsalot]

Kapitan, I read your Ice Ops memo, great stuff.
I have to ask, were you in the Soviet Navy? Or something similar?
You sound like you might have actually seen a sub, as opposed to guys like me that watch too many movies.

[darksythe]

not true at all some have grenade launchers some collapsible stocks some no stocks at all so nope

Just to clarify the model that you will see with the grenade launcher etc.. Is Usually the Ak-74 model(Just saying it is the more popular version for rail upgrades not that the AK47 doesnt have rail upgrades as it does its just not as popular). which is basicaly the Ak47 upgraded to the point where they decided that it warranted its own model type.

The AK74 is chambered in 5.45x39mm where the AK47 is chambered for 7.62x39mm.

One is more powerfull / slower projectile. <--Ak47
While the Ak74 is slightly less powerfull with a faster/More acurate Projectile.

Also to be noted the rifile in the signature is actually a AKMS.

Supporting info for the above.

The true AK-47 had an open top reciever (one can see the full bolt) identical to the SKS and a gas chamber similar to the German STG-44.

The AKMS that most people are familiar with has a closed top reciever where you can only see the charging handle. The gas chamber was modified to become a self cleaning piston.

Further info on the AKMS can be found at the following.
http://www.sovietarmy.com/small_arms/akms.html

[Kapitan]

@swimsalot

nope im not russian or soviet naval personell but i have very good contacts with people who are, i spend a month or two (depends) in russia normaly darting between st petersburg and murmansk region, i go there with my step dad and we visit some old friends there.

http://www.subsim.com/phpBB/viewtopic.php?t=31429&highlight=

^^^^ read that you soon see^^^^

[Sub Sailor]

I don't know about now, but in the 60s and 70s, Russian Subs did what WE called "Crazy Ivan", they would actually do a 180 and come back down their track, it made a trail very interesting. They did not ever set a schedule, just kick it in the a.. and turn hard, and you never knew which way.
I was in engineering, although I had qualified and stood forward watch station, we would know a "Crazy Ivan" was happening as we would recieve a jump bell and depth and direction would change quickly. Believe me it would raise your heart beat several levels. I am amazed we did not have more collisions. I personally was never on one of the watch stations forward when they pulled a Crazy Ivan.
My guess would be that countries that buy and then receive training from the Russians would do Crazy Ivans. Our manuver was, to clear baffles change course 30 degrees for a few minutes at reduced speed and the come 60 degrees, usually would hold the course about 5 minutes at 5 kts each side of track and then renew base course for about 25 minutes. If you were on station once the towed arrays were in the fleet, the array would be deployed. We did not run with it out normally. Never if we were tacking, good way to lose the array. Also deploying the array for SSNs depended on what your mission was. Boomers would run with the array deployed as we always mauvered, well were supposed to, a way from contacts. We also had to have floating wire our until Elf came operational. Boomers had to be monitoring the Fox Sched all the time when targeting.

Ron Banks MMCM(SS), USN(Ret)