On a good clear day...

Chubster · 05-04-10, 10:07 AM

at what range should I expect to get visually ID by enemy dd's ?

They seem to be able to see me at +10nm. Playing TMO + RSRD

BillBam · 05-04-10, 10:10 AM

What time frame? Later in the war Jap DD's did get some radar so that would make a big difference.

Chubster · 05-04-10, 11:40 AM

First Patrol of the war out of Manilla

BillBam · 05-04-10, 12:01 PM

On an absolutely clear day 10 nm might be possible. I generally expect them to see me shortly after my crew can see them, if my AI contacts at 8 nm I figure they can see me at 7 nm or so. This is a total guess on my part but I have yet to be detected on the surface using this assumption.

KlassenT · 05-04-10, 12:09 PM

Also keep in mind that profile-to-target plays a role as well. Coming at them dead on (So that they would interpret YOUR AoB as 0) gives them much less to work with than if you were strafing across them and they had a full lengthwise view of your sub. This plays an equal role both in visual identification and sonar detection, as I understand it. More surface area means there's both more to be seen and more that sound waves can be bounced off of.

05-07-10, 06:02 AM

Not sure of the game physics, as I am downloading ATM, however, if the moon was behind you, 10 NM, would not at all be surprising for a lookout to get a visual on you, or you, circumstances reversed, to get a visual on a target, in rl, depending on surface conditions. Rough seas, it would be difficult, but on "normal" seas, or flat, calm, the human eye, at night, could detect you. I know, from experience, a lookout during my first Med Cruise in the USN, detected a Soviet Mod-Kashin class DDG at almost 12nm on a flat sea near Italy (distance verified by nav radar, as SPS10 was in standby, under mod EMCON conditions). Seas were 1-3 ft, so, I think (been a long time since me sailor days in Uncle Sugar's Canoe Club!) "normal" is 1-5 ft. Might be wrong on that, but on conservative side..

(Lookout, btw, went from undesignated Seaman Apprentice to BM3 that night

)

05-04-10, 10:07 AM	#1
Chubster Frogman Join Date: Apr 2010 Posts: 288 Downloads: 162 Uploads: 0	On a good clear day... at what range should I expect to get visually ID by enemy dd's ? They seem to be able to see me at +10nm. Playing TMO + RSRD

05-04-10, 10:10 AM	#2
BillBam Watch Officer Join Date: Mar 2010 Location: Yuba/Sutter, CA Posts: 347 Downloads: 171 Uploads: 0	What time frame? Later in the war Jap DD's did get some radar so that would make a big difference.

05-04-10, 11:40 AM	#3
Chubster Frogman Join Date: Apr 2010 Posts: 288 Downloads: 162 Uploads: 0	First Patrol of the war out of Manilla

05-04-10, 12:01 PM	#4
BillBam Watch Officer Join Date: Mar 2010 Location: Yuba/Sutter, CA Posts: 347 Downloads: 171 Uploads: 0	On an absolutely clear day 10 nm might be possible. I generally expect them to see me shortly after my crew can see them, if my AI contacts at 8 nm I figure they can see me at 7 nm or so. This is a total guess on my part but I have yet to be detected on the surface using this assumption.

05-04-10, 12:09 PM	#5
KlassenT Mate Join Date: Jul 2009 Posts: 54 Downloads: 21 Uploads: 0	Also keep in mind that profile-to-target plays a role as well. Coming at them dead on (So that they would interpret YOUR AoB as 0) gives them much less to work with than if you were strafing across them and they had a full lengthwise view of your sub. This plays an equal role both in visual identification and sonar detection, as I understand it. More surface area means there's both more to be seen and more that sound waves can be bounced off of.

05-07-10, 06:02 AM	#6
Werehamster Stowaway Posts: n/a Downloads: Uploads:	Not sure of the game physics, as I am downloading ATM, however, if the moon was behind you, 10 NM, would not at all be surprising for a lookout to get a visual on you, or you, circumstances reversed, to get a visual on a target, in rl, depending on surface conditions. Rough seas, it would be difficult, but on "normal" seas, or flat, calm, the human eye, at night, could detect you. I know, from experience, a lookout during my first Med Cruise in the USN, detected a Soviet Mod-Kashin class DDG at almost 12nm on a flat sea near Italy (distance verified by nav radar, as SPS10 was in standby, under mod EMCON conditions). Seas were 1-3 ft, so, I think (been a long time since me sailor days in Uncle Sugar's Canoe Club!) "normal" is 1-5 ft. Might be wrong on that, but on conservative side.. (Lookout, btw, went from undesignated Seaman Apprentice to BM3 that night )