Radar scope - Page 2

Seaman_Hornsby · 07-31-07, 10:33 AM

Historical scope markings:

Indication and data output:
Range: 5-inch A-scope with range step and dial. Main Sweep: 60,000 yd. Expanded Sweep 20,000 yds. Precision sweep on 40,000 yds. 1,500 yds. either side of mark.

PPI: A 5-inch PPI is provided with SJ-a and SJ-1
Ranges: 8,000, 20,000, 80,000 yd. 160,000 yd. delayed sweep.
Other: Provisions for IFF indication are present.

http://www.maritime.org/radio-sj.htm

chopped50ford · 07-31-07, 02:12 PM

is there a mod for the radar scopes?

Captain Scribb · 07-31-07, 02:22 PM

If I just broke down and switched to metric instead of the more historical imperial, would everything definitely be in meters? I ask because I am getting overwhelmed with concern in tight situations that maybe something is in "feet" instead of yards, meters instead of yards, etc. Plus, when I set the torp depth even with the new types of tropedoes at right about or a little above keel, they still often go under in totally placid waters. It makes me wonder if that's just the simulated error of torps at the time, or an error in the manual, or a conversion problem where it was rounded off from being converted from meters....

As you can see, I am beginning to geek on all those measurement system stuff. Been playing for a good long while and certain errors are hard to pinpoint at human or interface. Any advice?

LukeFF · 07-31-07, 04:31 PM

Quote:

Originally Posted by Argus00

I'm guessing the distances are in yards.

The "m" is for "magnification", I think.

The m is part of the larger range designator, i.e., "m X 100" means the "150" marking on the A-scope indicates 15000 meters. It's the same type of system one sees in a car's tachometer, where it says something like "RPM x 100."

07-31-07, 10:33 AM	#16
Seaman_Hornsby Engineer Join Date: Apr 2007 Location: Texas Posts: 203 Downloads: 71 Uploads: 0	Historical scope markings: Indication and data output: Range: 5-inch A-scope with range step and dial. Main Sweep: 60,000 yd. Expanded Sweep 20,000 yds. Precision sweep on 40,000 yds. 1,500 yds. either side of mark. PPI: A 5-inch PPI is provided with SJ-a and SJ-1 Ranges: 8,000, 20,000, 80,000 yd. 160,000 yd. delayed sweep. Other: Provisions for IFF indication are present. http://www.maritime.org/radio-sj.htm __________________ Friends, when once a man is launched on such an adventure as this, he must bid farewell to hopes and fears, otherwise death or deliverance will both come too late to save his honor and his reason.

07-31-07, 02:12 PM	#17
chopped50ford Weps Join Date: Jul 2007 Location: Bentonville, AR Posts: 367 Downloads: 22 Uploads: 0	is there a mod for the radar scopes? __________________ TM2(SS) USS Asheville - Plankowner, Shellback, "Order of the Ditch" http://ths-i.com/

07-31-07, 02:22 PM	#18
Captain Scribb Sailor man Join Date: Jul 2007 Posts: 50 Downloads: 0 Uploads: 0	If I just broke down and switched to metric instead of the more historical imperial, would everything definitely be in meters? I ask because I am getting overwhelmed with concern in tight situations that maybe something is in "feet" instead of yards, meters instead of yards, etc. Plus, when I set the torp depth even with the new types of tropedoes at right about or a little above keel, they still often go under in totally placid waters. It makes me wonder if that's just the simulated error of torps at the time, or an error in the manual, or a conversion problem where it was rounded off from being converted from meters.... As you can see, I am beginning to geek on all those measurement system stuff. Been playing for a good long while and certain errors are hard to pinpoint at human or interface. Any advice?