SUBSIM Radio Room Forums - View Single Post - Actual Conversion of RPM to Knots Submerged

Tessa · 04-22-08, 09:30 PM

In researching for a different project ran across this nice little piece of info from an Admiralty report retrieved from the British Archives:

Type VII C
RPM Speed
60 1.5 kts Dead Slow
112 3.0 kts Slow
160 4.1 kts Half Speed
200 5.23 kts 3/5 Speed
233 6.1 kts 3/4 Speed
280 7.4 kts Full

Type IX C
RPM Speed
60 Dead Slow
90 Silent
110 Slow
160 Half
180 3/4 Speed
210 7/8 kts Full

It goes on to further state that slow speed was actually around 90 RPM's.

04-22-08, 09:30 PM	#1
Tessa Grey Wolf Join Date: Feb 2007 Location: CG 96 Posts: 861 Downloads: 22 Uploads: 0	Actual Conversion of RPM to Knots Submerged In researching for a different project ran across this nice little piece of info from an Admiralty report retrieved from the British Archives: Type VII C RPM Speed 60 1.5 kts Dead Slow 112 3.0 kts Slow 160 4.1 kts Half Speed 200 5.23 kts 3/5 Speed 233 6.1 kts 3/4 Speed 280 7.4 kts Full Type IX C RPM Speed 60 Dead Slow 90 Silent 110 Slow 160 Half 180 3/4 Speed 210 7/8 kts Full It goes on to further state that slow speed was actually around 90 RPM's.