Malfunctions - compressed air leaks - Page 2

Captain Birdseye · 06-09-09, 06:42 PM

And you fellow kaleun

Good hunting

Leandros · 06-10-09, 04:31 AM

Quote:

Originally Posted by Paul Riley

Interesting Capt. , I never knew about that one.So,this would simulate problems with the trim tanks I expect.I know that when at depths greater than 200m (noticed this in stock game ages ago) the UBoat appears to show problems holding depth (probably due to the extreme weight of water above the UBoat) , unless when faster than 1/3.Not very useful when trying to sneak away from a pursuer.

As I understand it this might really reflect RL, not necessarily a technical failure. Due to various factors one couldn't keep the boot at exactly the same depth without any speed/rudder inputs....

sharkbit · 06-10-09, 07:36 AM

Quote:

Originally Posted by Captain Birdseye

I had a malfunction on my sub in '42 in the Med. I only discovered it when being depth charged, the malfunction was that the sub couldn't stay level at over 140 metres. Resulting in sinking unless the engines were at ahead standard or we blew ballast.
My depth test was at 120m

Did you crash dive while submerged?

I've noticed a couple times that if you hit C and crash dive while submerged, depth control is impossible at slow speeds. I have to go at about 3-4 knots to stay at the level I want.

Very annoying when trying to be quiet and sneak away from the destroyer coming at you and caused you to panic and crash dive from periscope depth in the first place.
I've tried not to ever do that, but I forgot a couple of days ago and had the issue again.

Kapt Z · 06-11-09, 08:26 AM

The worst 'malfunction' I've encountered was a severe fuel leak. I normally check my range at present speed not far out into Biscay and it came back at almost half of what I was used to. I suppose I should have returned to base just because I must have been leaving a trail of diesel oil as wide as the interstate behind me, but since I knew that wasn't modelled in the game I just went out anyway. Short patrol with low score.

Paul Riley · 06-11-09, 09:09 AM

I dont think I have experienced a fuel leak,at least that I am aware of.
What I normally do to keep a check on my fuel is -

1 - get max range as soon as I start the patrol,at cruising speed.I ask for 5 reports,then take an average.
2 - I then work out my fuel consumption for 24hrs,usually ends up around 520km worth.I then do another fuel check in 24hrs time.The fuel should fluctuate (+ -) no more than around 50-100km,depending on sea conditions.
3 - I then repeat fuel checks at 12:00 each day.

Paul Riley · 06-11-09, 09:10 AM

Do we also get lens problems with malfunctions on?,fogging etc,or even cracks?

Jimbuna · 06-11-09, 09:26 AM

Quote:

Originally Posted by Paul Riley

Do we also get lens problems with malfunctions on?,fogging etc,or even cracks?

Yep....that's another of the malfunction possibilities.

Kapt Z · 06-11-09, 11:07 AM

Quote:

Originally Posted by Paul Riley

I dont think I have experienced a fuel leak,at least that I am aware of.
What I normally do to keep a check on my fuel is -

1 - get max range as soon as I start the patrol,at cruising speed.I ask for 5 reports,then take an average.
2 - I then work out my fuel consumption for 24hrs,usually ends up around 520km worth.I then do another fuel check in 24hrs time.The fuel should fluctuate (+ -) no more than around 50-100km,depending on sea conditions.
3 - I then repeat fuel checks at 12:00 each day.

I'm not normally quite as thorough as that. On the patrol in question I had a VIIC out of St Nazaire and as is my habit I ran about three 'max range estimates' as soon as I was up to about 8kts on a glassy sea. I expected, from past experience with type VIIs, to see a max range of over 20,000km. The results all came back at around 13,000km! I continued to monitor the fuel throughout the patrol, but it never rose above those first three estimates. I finally had to throw in the towel after only a couple weeks and return to base before I ran out of fuel.

I've always played with 'malfunctions/sabotage' and never saw that before or since.

Warhawk · 06-11-09, 03:07 PM

Quote:

Originally Posted by sharkbit

Did you crash dive while submerged?

I've noticed a couple times that if you hit C and crash dive while submerged, depth control is impossible at slow speeds. I have to go at about 3-4 knots to stay at the level I want.

Very annoying when trying to be quiet and sneak away from the destroyer coming at you and caused you to panic and crash dive from periscope depth in the first place.
I've tried not to ever do that, but I forgot a couple of days ago and had the issue again.

I find that if I crash dive..but before I get to 75 meters at full speed, I hit a to stop at a specific depth..if you slow to silent speed you will sink 10-15 meters below until the sub re-balances the trim tanks and restores buoyancy...remember a crash dive..they flood the tanks to get underwater asap!

1. Crash dive, full throttle
2. Hit a 2x at say 50 meters [7 knots]
3. Hit ahead slow (#1)
4. Sub takes on surfacing posture (nose up) [2 knots]
5. Depth gauge keeps sinking about 10-15 meters then slowly climbs back to 50 meter mark

I don't think I could handle malfunctions...damn planes are pissing me off enough as it is....now to have a damn busted boat! grrrr

06-11-09, 09:09 AM	#20
Paul Riley Ocean Warrior Join Date: Aug 2008 Location: Sheffield, England Posts: 2,679 Downloads: 165 Uploads: 0	Monitoring fuel I dont think I have experienced a fuel leak,at least that I am aware of. What I normally do to keep a check on my fuel is - 1 - get max range as soon as I start the patrol,at cruising speed.I ask for 5 reports,then take an average. 2 - I then work out my fuel consumption for 24hrs,usually ends up around 520km worth.I then do another fuel check in 24hrs time.The fuel should fluctuate (+ -) no more than around 50-100km,depending on sea conditions. 3 - I then repeat fuel checks at 12:00 each day. __________________ Best Patrol: 10 merchants + HMS Nelson for 68.056 Tonnes

06-11-09, 09:10 AM	#21
Paul Riley Ocean Warrior Join Date: Aug 2008 Location: Sheffield, England Posts: 2,679 Downloads: 165 Uploads: 0	Do we also get lens problems with malfunctions on?,fogging etc,or even cracks? __________________ Best Patrol: 10 merchants + HMS Nelson for 68.056 Tonnes

06-09-09, 06:42 PM	#16
Captain Birdseye Watch Officer Join Date: Feb 2009 Location: Sat behind my desk at BdU tapping away on my Enigma machine. Posts: 339 Downloads: 44 Uploads: 0	And you fellow kaleun Good hunting

06-11-09, 08:26 AM	#19
Kapt Z Grey Wolf Join Date: Aug 2007 Location: ...somewhere in the swamps of Jersey. Posts: 909 Downloads: 157 Uploads: 0	The worst 'malfunction' I've encountered was a severe fuel leak. I normally check my range at present speed not far out into Biscay and it came back at almost half of what I was used to. I suppose I should have returned to base just because I must have been leaving a trail of diesel oil as wide as the interstate behind me, but since I knew that wasn't modelled in the game I just went out anyway. Short patrol with low score.