GUIDE: Easy and Fast Speed Estimation

WernerSobe · 04-19-07, 12:41 AM

Hello. This is another Method to estimate Target speed fairly accurate and quickly without to much math or special tools. All you need is a pocket calculator or use your brain if youre good at mental arithmetic.

here we go:

1. Identify the vessel.

you dont even need range or AoB now. We are going to grab the speed first. Just make sure AoB is somewhere between 50 and 140

2. Catch the Time your target needs to pass the center line of the optics in seconds.

just place the center line in front of the ship and start the watch when the bow touchs the line. Get the time when the stern has passed the line.

3. Devide the "magic" number from the table below by the time you have catched.

round it and you have your speed in knots. Now complete your firing solution with range and AoB.

The List

Battleships:

Fuso 418
Kongo 426
Ise 435
Yamato 520

Carrier:

Hiryu Fleet Carrier 444
Shokaku Fleet carrier 510
Akitsu Eskort Carrier 295
Chitose Seaplane Tender 362
Taiyo Escort Carrier 351

Cruiser

Maya Heavy Cruiser 398
Mogami Heavy Cruiser 388
Takao Heavy Cruiser 398
Agano Light Cruiser 333
Kuma Light Cruiser 315
Naka Light Cruiser 315

Destroyer

Akizuki Destroyer 259
Asashio Destroyer 231
Fubuki Destroyer 231
Minekaze Destroyer 194
Mutsuki Destroyer 194
Shiratsuyu Destroyer 204

Other Warships

Large Minelayer 240
Minesweaper 139
Medium Gunboat 111
Small Gunboat 93
Subchaser 128

Troop Carriers

Huge European Liner 343
Large Old Passenger Carrier 267
Modern Passenger Lliner 260
Small Passenger Carrier 152

Tankers

Large Modern Tanker 300
Medium Old Tanker 204
Small Old Tanker 151

Merchants

Large Modern Composite 273
Large Old Split Freighter 269
Medium European Composite 237
Medium Modern Composite 204
Medium Modern Split Freighter 218
Medium Old Composit Freighter 207
Medium Old Split Freighter 238
Small Modern Composite Freighter 159
Small Old Split Freighter 169

This method is fairly accurate at AoB between 50 and 140 with an error less then 0.5 knots. You will have best results at AoB 75-105. Outside of 50-140 range the error develops rapidly. Ive tested the numbers for each ship. It works for any range at any speed.
Note The higher the speed though the higher the error, it becomes important at speeds of 30+ knots.
Note The slower the target the longer it takes to catch the time. Merchants traveling at 5 knots should take about 40 seconds to pass the optics.
Note Your own speed must be zero or close to that. The faster you move the less accurate is the solution. You can move when your solution is ready. Position Keeper should take your speed in account.
Note before you activate the Position keeper you should complete the solution. If you start position keeper first, it might spoil your solution a little bit since the speed is going into calculation from beginning now.
Hint While the vessel is passing the optics you can use the time to set up the torpedos

My idea was first to put the numbers into recognition book together with other important information and release it as a mod. But i have no clue how the recognition manual is put together so maybe a skilled modder can do that. Feel free to do so id love it.

Another good idea would be to release the list as fine printready PDF. I dont have any PDF Software on my machine at the moment. If someone has such tools, make us happy.

Good Hunting.

04-19-07, 12:41 AM	#1
WernerSobe Commodore Join Date: Jul 2006 Posts: 625 Downloads: 5 Uploads: 0	GUIDE: Easy and Fast Speed Estimation Hello. This is another Method to estimate Target speed fairly accurate and quickly without to much math or special tools. All you need is a pocket calculator or use your brain if youre good at mental arithmetic. here we go: 1. Identify the vessel. you dont even need range or AoB now. We are going to grab the speed first. Just make sure AoB is somewhere between 50 and 140 2. Catch the Time your target needs to pass the center line of the optics in seconds. just place the center line in front of the ship and start the watch when the bow touchs the line. Get the time when the stern has passed the line. 3. Devide the "magic" number from the table below by the time you have catched. round it and you have your speed in knots. Now complete your firing solution with range and AoB. The List Battleships: Fuso 418 Kongo 426 Ise 435 Yamato 520 Carrier: Hiryu Fleet Carrier 444 Shokaku Fleet carrier 510 Akitsu Eskort Carrier 295 Chitose Seaplane Tender 362 Taiyo Escort Carrier 351 Cruiser Maya Heavy Cruiser 398 Mogami Heavy Cruiser 388 Takao Heavy Cruiser 398 Agano Light Cruiser 333 Kuma Light Cruiser 315 Naka Light Cruiser 315 Destroyer Akizuki Destroyer 259 Asashio Destroyer 231 Fubuki Destroyer 231 Minekaze Destroyer 194 Mutsuki Destroyer 194 Shiratsuyu Destroyer 204 Other Warships Large Minelayer 240 Minesweaper 139 Medium Gunboat 111 Small Gunboat 93 Subchaser 128 Troop Carriers Huge European Liner 343 Large Old Passenger Carrier 267 Modern Passenger Lliner 260 Small Passenger Carrier 152 Tankers Large Modern Tanker 300 Medium Old Tanker 204 Small Old Tanker 151 Merchants Large Modern Composite 273 Large Old Split Freighter 269 Medium European Composite 237 Medium Modern Composite 204 Medium Modern Split Freighter 218 Medium Old Composit Freighter 207 Medium Old Split Freighter 238 Small Modern Composite Freighter 159 Small Old Split Freighter 169 This method is fairly accurate at AoB between 50 and 140 with an error less then 0.5 knots. You will have best results at AoB 75-105. Outside of 50-140 range the error develops rapidly. Ive tested the numbers for each ship. It works for any range at any speed. Note The higher the speed though the higher the error, it becomes important at speeds of 30+ knots. Note The slower the target the longer it takes to catch the time. Merchants traveling at 5 knots should take about 40 seconds to pass the optics. Note Your own speed must be zero or close to that. The faster you move the less accurate is the solution. You can move when your solution is ready. Position Keeper should take your speed in account. Note before you activate the Position keeper you should complete the solution. If you start position keeper first, it might spoil your solution a little bit since the speed is going into calculation from beginning now. Hint While the vessel is passing the optics you can use the time to set up the torpedos My idea was first to put the numbers into recognition book together with other important information and release it as a mod. But i have no clue how the recognition manual is put together so maybe a skilled modder can do that. Feel free to do so id love it. Another good idea would be to release the list as fine printready PDF. I dont have any PDF Software on my machine at the moment. If someone has such tools, make us happy. Good Hunting. Last edited by WernerSobe; 04-19-07 at 02:39 AM.