Target practice

dougdrvr · 03-17-10, 11:49 AM

Slighty OT, but does the low speed setting on MK14s leave a less visable wake?

jason210 · 03-17-10, 01:17 PM

Crew of target vessel, set to poor. Night, overcast, no moon.

Type 14 torpedo, high speed. Ship spots it and slows slows down...

So it looks like it's not possible with this torpedo at least.

Admiral8Q · 03-17-10, 01:29 PM

Quote:

Originally Posted by dougdrvr

Slighty OT, but does the low speed setting on MK14s leave a less visable wake?

No.

It's steam propelled no matter what speed it's set at. Realistically there would probably be more of a wake at the slow speed setting.

jason210 · 03-17-10, 03:51 PM

I fixed the problem now. I had not set any waypoints to the target, so although it started off at the initial correct speed, it was slowing down all the time. By adding a waypoint with a speed, the target behaves as expected. Now I am having 100% hit rate with my whizz wheel.

The only problem now is that I am unable to use the whizz wheel with none zero gyro angles. I guess this is because the gyro angle doesn't kick in until after a few hundred yards, and therefore the actual angle to the target from the periscope is slightly different to the gryo angle.

Does anyone know what the exact distance is the torpedo travels before the gyro angle preset kicks in?

Admiral8Q · 03-17-10, 04:19 PM

Mark 10 Torpedo

Date In Service: About 1918
Weight: 2,215 lbs. (1,005 kg)
Length: 15 ft 3 in (4.953 m)
Warhead: 497 lbs. (225 kg) TNT
Range / Speed: 3,500 yards (3,200 m) / 36 knots
Propulsion: Steam

Mark 14 Torpedo

Date In Service: 1931
Weight: 3,280 lbs. (1,488 kg)
Length: 20 ft 6 in (6.248 m)
Warhead: 643 lbs. (292 kg) Torpex
Range / Speed: 4,500 yards (4,100 m) / 46 knots; 9,000 yards (8,200 m) / 31 knots
Propulsion: Steam

Mark 18 Torpedo

Date In Service: 1944
Weight: 3,154 lbs. (1,431 kg)
Length: 20 ft 5 in (6.223 m)
Warhead: 575 lbs. (261 kg) Torpex
Range / Speed: 4,000 yards (3,650 m) / 29 knots
Propulsion: Electric-Battery

Admiral8Q · 03-17-10, 04:22 PM

Quote:

Originally Posted by jason210

Does anyone know what the exact distance is the torpedo travels before the gyro angle preset kicks in?

Sorry, I misread that. The Gyro kicks in at about 200-300 yards.

jason210 · 03-17-10, 04:33 PM

Don't apologise - that was a handy summary. Thanks!

Admiral8Q · 03-17-10, 05:42 PM

Quote:

Originally Posted by jason210

Don't apologise - that was a handy summary. Thanks!

Yes Sir!!!

03-17-10, 01:17 PM	#2
jason210 Sonar Guy Join Date: Sep 2002 Location: Sweden / UK Posts: 386 Downloads: 33 Uploads: 0	Crew of target vessel, set to poor. Night, overcast, no moon. Type 14 torpedo, high speed. Ship spots it and slows slows down... So it looks like it's not possible with this torpedo at least. __________________ Intel Core i9-9900K @ 3.6 GHz nVidia GeForce RTX 2070 32GB memory Windows 10 Pro

03-17-10, 03:51 PM	#4
jason210 Sonar Guy Join Date: Sep 2002 Location: Sweden / UK Posts: 386 Downloads: 33 Uploads: 0	I fixed the problem now. I had not set any waypoints to the target, so although it started off at the initial correct speed, it was slowing down all the time. By adding a waypoint with a speed, the target behaves as expected. Now I am having 100% hit rate with my whizz wheel. The only problem now is that I am unable to use the whizz wheel with none zero gyro angles. I guess this is because the gyro angle doesn't kick in until after a few hundred yards, and therefore the actual angle to the target from the periscope is slightly different to the gryo angle. Does anyone know what the exact distance is the torpedo travels before the gyro angle preset kicks in? __________________ Intel Core i9-9900K @ 3.6 GHz nVidia GeForce RTX 2070 32GB memory Windows 10 Pro

03-17-10, 04:19 PM	#5
Admiral8Q Ace of the Deep Join Date: Jul 2002 Location: Prince Edward Island, Canada Posts: 1,077 Downloads: 24 Uploads: 0	Mark 10 Torpedo Date In Service: About 1918 Weight: 2,215 lbs. (1,005 kg) Length: 15 ft 3 in (4.953 m) Warhead: 497 lbs. (225 kg) TNT Range / Speed: 3,500 yards (3,200 m) / 36 knots Propulsion: Steam Mark 14 Torpedo Date In Service: 1931 Weight: 3,280 lbs. (1,488 kg) Length: 20 ft 6 in (6.248 m) Warhead: 643 lbs. (292 kg) Torpex Range / Speed: 4,500 yards (4,100 m) / 46 knots; 9,000 yards (8,200 m) / 31 knots Propulsion: Steam Mark 18 Torpedo Date In Service: 1944 Weight: 3,154 lbs. (1,431 kg) Length: 20 ft 5 in (6.223 m) Warhead: 575 lbs. (261 kg) Torpex Range / Speed: 4,000 yards (3,650 m) / 29 knots Propulsion: Electric-Battery __________________

03-17-10, 04:33 PM	#7
jason210 Sonar Guy Join Date: Sep 2002 Location: Sweden / UK Posts: 386 Downloads: 33 Uploads: 0	Don't apologise - that was a handy summary. Thanks! __________________ Intel Core i9-9900K @ 3.6 GHz nVidia GeForce RTX 2070 32GB memory Windows 10 Pro

03-17-10, 11:49 AM	#1
dougdrvr Swabbie Join Date: Dec 2009 Posts: 12 Downloads: 12 Uploads: 0	Slighty OT, but does the low speed setting on MK14s leave a less visable wake?