Limiting max speed when using the snorkel

LukeFF · 07-10-05, 01:15 PM

I have read that U-boats could not sail above 7 knots while using their snorkel, or otherwise the masthead would break off. However, in SH3 no such speed restrictions exist. Is there a way to modify this? If ever there was something we could add to RuB, this would be a prime candidate. :hmm:

Jace11 · 07-10-05, 01:33 PM

good point.

A speed may be present in the sub sim files. I don't remember seeing one though.

If not, it may be a standard modifer reducing speed by say 20% for all subs when using the snort. That would be hard to find and fix.

Duke of Earl · 07-10-05, 02:09 PM

Quote:

Originally Posted by Jace11

good point.

A speed may be present in the sub sim files. I don't remember seeing one though.

If not, it may be a standard modifer reducing speed by say 20% for all subs when using the snort. That would be hard to find and fix.

In the real world, a snorkel should not be used at any speed above a 1/3 bell... or 7 knots, as LukeFF suggested.. because dynamic water pressure will damage or destroy it.. it's just a big, hollow tube after all...

The same should apply to periscopes, to a limited degree, as well... due to their smaller diameter, they can withstand higher speeds... but, I don't think they could be used at a flank bell or at speeds above 8 or 9 knots..

Cordialement, Duke of Earl

LukeFF · 07-19-05, 02:37 PM

Bump

Treeburst155 · 07-19-05, 03:02 PM

Very interesting....I'll be banning myself from snorkel and periscope use at speeds above 9 knots. This will make things just a little more complicated and interesting.

Treeburst155 out.

CCIP · 07-19-05, 06:02 PM

Well I can't see any values that would help us to do this. The problem is that it sees snorkel-powered sailing as using surface propulsion, and surface propulsion just has a nice blanket set of values for everything. If only there was a value for water drag...

LukeFF · 07-20-05, 01:58 PM

Quote:

Originally Posted by CCIP

Well I can't see any values that would help us to do this. The problem is that it sees snorkel-powered sailing as using surface propulsion, and surface propulsion just has a nice blanket set of values for everything. If only there was a value for water drag...

Darn! Well, in the meantime, I guess I'll just limit my speed to 7 knots by using the 'honor system' method.

rulle34 · 07-20-05, 05:48 PM

Hello!
Don't be so upset about this.
The "honor method" is in fact the only realistic one. In reality they didn't have any "built in speed limit". They just set a speed that was in the limit of what the schnorchel could hold for.

/Rulle

LukeFF · 07-21-05, 01:58 PM

Quote:

Originally Posted by rulle34

Hello!
Don't be so upset about this.
The "honor method" is in fact the only realistic one. In reality they didn't have any "built in speed limit". They just set a speed that was in the limit of what the schnorchel could hold for.

/Rulle

That's true, but it would be good if your Chief Engineer warned you about running at too fast a speed with the snorkel raised. Something like, "The snorkel will be damaged above 7 knots speed, sir!

Beery · 07-21-05, 03:11 PM

Quote:

Originally Posted by LukeFF

...it would be good if your Chief Engineer warned you about running at too fast a speed with the snorkel raised. Something like, "The snorkel will be damaged above 7 knots speed, sir!

It could easily be added to the 'snorkel raised' message, although I'm not going to be adding it to RUb/SH3 Commander anytime soon, because it means adding it to 70+ files, LOL.

07-10-05, 01:15 PM	#1
LukeFF Silent Hunter Join Date: Apr 2005 Location: Riverside, California Posts: 3,610 Downloads: 41 Uploads: 5	Limiting max speed when using the snorkel I have read that U-boats could not sail above 7 knots while using their snorkel, or otherwise the masthead would break off. However, in SH3 no such speed restrictions exist. Is there a way to modify this? If ever there was something we could add to RuB, this would be a prime candidate. :hmm:

07-19-05, 06:02 PM	#6
CCIP Navy Seal Join Date: Apr 2005 Location: Waterloo, Canada Posts: 8,700 Downloads: 29 Uploads: 2	Well I can't see any values that would help us to do this. The problem is that it sees snorkel-powered sailing as using surface propulsion, and surface propulsion just has a nice blanket set of values for everything. If only there was a value for water drag... __________________ There are only forty people in the world and five of them are hamburgers. -Don Van Vliet (aka Captain Beefheart)

07-10-05, 01:33 PM	#2
Jace11 Seasoned Skipper Join Date: Mar 2005 Location: UK Posts: 683 Downloads: 104 Uploads: 1	good point. A speed may be present in the sub sim files. I don't remember seeing one though. If not, it may be a standard modifer reducing speed by say 20% for all subs when using the snort. That would be hard to find and fix.

07-19-05, 02:37 PM	#4
LukeFF Silent Hunter Join Date: Apr 2005 Location: Riverside, California Posts: 3,610 Downloads: 41 Uploads: 5	Bump

07-19-05, 03:02 PM	#5
Treeburst155 Watch Join Date: Jan 2001 Posts: 16 Downloads: 0 Uploads: 0	Very interesting....I'll be banning myself from snorkel and periscope use at speeds above 9 knots. This will make things just a little more complicated and interesting. Treeburst155 out.

07-20-05, 05:48 PM	#8
rulle34 Grey Wolf Join Date: Apr 2005 Location: Sweden Posts: 835 Downloads: 8 Uploads: 0	Hello! Don't be so upset about this. The "honor method" is in fact the only realistic one. In reality they didn't have any "built in speed limit". They just set a speed that was in the limit of what the schnorchel could hold for. /Rulle