Designer Notes (Neil Strom)

Raid on Ceylon:
http://en.wikipedia.org/wiki/Easter_Sunday_Raid

All the ship numbers need revision:

Here is the last bit of variant info:

Calcutta( F12 range=2sq radius flight time=1 hour ( all times and ranges have been rouned to whole numbers ) - this represents the Br Air Defence in Idia at this time - strenght could go to 16 but not much over that flight time is the duration from when a n aircraft leaves its base, flys to max range and back to its base also Fleet Air Arm stationed tat Calcutta: (CV Indomitable had been ferrying aircraft in the region for some time now - hence the forces at Calcutta - Colombo and Trincomalee )

F6 range=4sq radius flight time=2 hours
TB5 range 7sq radius flight time=8 hours
 
Fleet Air Arm at Trincomalee: 
F6 range=4sq radius flight time=2 hours
TB5 range 7sq radius flight time=8 hours
 
Fleet Air Arm at Colombo:
F12 range=4sq radius flight time=2 hours
TB10 range 7sq radius flight time=8 hours
PBY recon - 6 units range=13 sq radius flight time=17 hours
 
Fleet Air Arm on all carriers:
F's range=4sq radius flight time=2 hours
TB's range 7sq radius flight time=8 hours
 
for the IJN: all aircraft are shipborne
F's range=9 sq radiusflight time=6 hours
DB's range=6 sq radiusflight time=5 hours 
TB's range=8 sr radius flight time=8 hours
recon 5 units on CA Tone range=9 sq radius flight time=9 hours
 
quick run down on sequence of events:
IJN carriers spoted on 4-4 pm turn
 
Colombo raided on 4-5 AM turn - BR losses - 19 fighters ( F6 ) and 6 torp bmbers ( TB2 ) lost
in port 1 DD, 1 armed merchant cruiser and i merchant ship sunk
both CA's had put out to sea where they were sunk the same day
 
Trincomalee raided on 4-6 AM turn - no shipping losses in port but 11 fighters were lost  ( F4 )- the remaining did attempt to attack the IJN carriers but less than half returned - due to the quickness of these attacks there was no coordinated attack from both Colombo and Trincomalee
 
CVL Hermes and 1 DD were sunk this day while putting out to sea
 
further IJN raids along the Indian coast netted 23 merchants sunk - there  were no merchants in Calcutta as they were ordered dispersed much earlier pro=ior to the arrival of the IJN forces
the land defenses of Celon would include all of it home forces plus 2 seasoned Australian Brigades coming from N. Africa - these details had been worked out far un advance and those troops were basically hours away
 
this raid netted the IJN fleet 116000 gr reg tons sunk - not too shabby for about a weeks work
 
this completes it - i have given you all the data and a synopsis of events and the situation - all you need are the rules - good luck with your game- hope it does well
neil strom
 
 
 
 here is the IJN OoB: will send details on aircraft ranges and tidy up some lof the odds and ends and maybe a bit of historical over view - time permitting - this has been much more than i invisioned and this is not what i care to do as an on going basis - was just looking for some p[arts to augment my games here :)

at square G-7E on the first daylight turn of 4-4-1942
CV Akagi Spd=2 Gun=8 AA=6 TT=0 Hits=5  F=8 DB=8 TB=8
CV Shokaku Spd=2 Gun=0 AA=6 TT=0 Hits=4  F=8 DB=8 TB=8
CV Zuikaku Spd=2 Gun=0 AA=6 TT=0 Hits=4  F=8 DB=8 TB=8
CV Hiryu Spd=2 Gun=0 AA=6 TT=0 Hits=3  F=7 DB=7 TB=7
 CV Soryu Spd=2 Gun=0 AA=6 TT=0 Hits=3  F=7 DB=7 TB=7
BC Haruna Spd=2 Gun=14 AA=4 TT=0 Hits=4
BC Hiei Spd=2 Gun=14 AA=4 TT=0 Hits=4
BC Kirishima Spd=2 Gun=14 AA=4 TT=0 Hits=4
BC Kongo Spd=2 Gun=14 AA=4 TT=0 Hits=4
CA Ashigara Spd= 2 Gun=8 AA=4 TT=4 Hits=3
CA Nachi Spd= 2 Gun=8 AA=4 TT=4 Hits=3
CATone Spd= 2 Gun=8 AA=4 TT=4 Hits=3
1DD Spd=2 Gun=0 AA=12 TT=12 Hits=4 ( 1 counter )
2DD Spd=2 Gun=0 AA=12 TT=12 Hits=4 ( 1 counter )
3DD Spd=2 Gun=0 AA=9 TT=9 Hits=3 ( 1 counter )
 
at square H-7D starts at same time as first group
4DD Spd=2 Gun=0 AA=12 TT=12 Hits=4 ( 1 counter )
4 ea. AO Spd 1 Gun=0 AA=0 TT=0 Hits=1 ( 4 Counters )
 
at square I-5B starts the same as groups above
CVL Zuiho Spd=2 Gun=0 AA=4 TT=0 Hits=2  F=5 TB=5
CA Myoko Spd= 2 Gun=8 AA=4 TT=4 Hits=3
CA Haguro Spd= 2 Gun=8 AA=4 TT=4 Hits=3
CA Takao Spd= 2 Gun=8 AA=4 TT=4 Hits=3
CA Atago Spd= 2 Gun=8 AA=4 TT=4 Hits=3
CA Maya Spd= 2 Gun=8 AA=4 TT=4 Hits=3
CA Chokai Spd= 2 Gun=8 AA=4 TT=4 Hits=3
5DD Spd=2 Gun=0 AA=12 TT=12 Hits=4 ( 1 counter )
neil strom

what follows is the revised OoB with locations:
at Trincomalee =
CVL Hermes: Spd=1 Gun=0 AA=0 TT=0 Hits=2  F=3  TB=2
DD: Spd=2 Gun=0 AA=0 TT=2 hits=1
airfiekld: F=6 TB=5
 
at Colombo:
CA Dorsetshire (refitting) Spd=2 Gun=8 AA=4 TT=2 Hits=2
CA Cormwall Spd=2 Gun=8 AA=4 TT=2 Hits=2
DD: Spd=2 Gun=0 AA=0 TT=2 hits=1
airfiekld: F=12 TB=10
 
atAddu Atoll ( a port totally unknow to IJN intelligence - so no scenario options here what so ever ) - the Rn was on station south of Ceylon but on 4-2 they headed back to Addu for fuel and fresh water - the sail time was 1 day ( 3 turns ) Colombo to Addu is 600 miles
CV Formidavle Spd=2 Gun=9 AA=8 TT=0 Hits=5  F=6 TB=5
CV Indomitable Spd=2 Gun=9 AA=8 TT=0 Hits=5  F=6 TB=5
BB Warspite Spd=1 Gun=15 AA=10 TT=0 Hits=6
BB Ramilles Spd=1 Gun=15 AA=4 TT=0 Hits=3
BB Royal Sovereign Spd=1 Gun=15 AA=4 TT=0 Hits=3
BB Revenge Spd=1 Gun=15 AA=4 TT=0 Hits=3
BB Resolution Spd=1 Gun=15 AA=4 TT=0 Hits=3
CL Mauritius Spd=2 Gun=6 AA=4 TT=2 Hits=2
CL Glasgow Spd=2 Gun=6 AA=4 TT=2 Hits=2
CL Birmingham Spd=2 Gun=6 AA=4 TT=2 Hits=2
CL NewcastleSpd=2 Gun=6 AA=4 TT=2 Hits=2
CL Capetown Spd=2 Gun=6 AA=1 TT=0 Hits=1
CL Colombo Spd=2 Gun=6 AA=1 TT=0 Hits=1
CL Caledon Spd=2 Gun=6 AA=1 TT=0 Hits=1
CL Ceres Spd=2 Gun=6 AA=1 TT=0 Hits=1
CL Dragon Spd=2 Gun=6 AA=1 TT=2 Hits=1
CL Danae Spd=2 Gun=6 AA=1 TT=2 Hits=1
CL Durban Spd=2 Gun=6 AA=1 TT=2 Hits=1
CL Dauntless Spd=2 Gun=6 AA=1 TT=2 Hits=1
CL Enterprise Spd=2 Gun=6 AA=1 TT=2 Hits=2
1DD Spd=2 Gun=0 AA=16 TT=8 Hits=4 ( 1 counter )
2DD Spd=2 Gun=0 AA=16 TT=8 Hits=4 ( 1 counter )
3DD Spd=2 Gun=0 AA= TT=6 Hits=3 ( 1 counter )
4DD Spd=2 Gun=0 AA= TT=6 Hits=3 ( 1 counter )
 


Here are the Point Values, Hits, Surface Combat Factor, Screening Value, and Aircraft Capactity (for the carriers)


Kongo: 6, 6, 10, 5
Fuso: 7, 7, 11, 5
Ise: 7, 7, 11, 5
Ise1944: 7, 7, 8, 8   Aircraft Capacity: 3
Nagato: 8, 8, 13, 8
Yamato: 10, 10, 18, 10
Yamato1944: 10, 10, 18, 14

Hosho: 4, 2, 2, 1  Aircraft: 3
Kaga: 10, 5, 5, 3  Aircraft: 24
Akagi: 10, 5, 5, 3  Aircraft: 21
Ryujo: 7, 3, 2, 2  Aircraft 14
Soryu: 8, 3, 2, 3  Aircraft: 21
Hiryu: 8, 3, 2, 3  Aircraft: 21
Shokaku: 10, 5, 5, 3  Aircraft: 24
Shoho: 6, 2, 2, 1  Aircraft: 8
Taiyo: 6, 2, 1, 1  Aircraft: 8
Junyo: 8, 4, 2, 2  Aircraft: 16
Ryuho: 6, 2, 2, 1  Aircraft: 8
Chiyoda: 6, 2, 2, 2  Aircraft: 8
Taiho: 10, 7, 5, 7  Aircraft: 16
Shinano: 10, 10, 5, 10  Aircraft: 16
Unryu: 8, 4, 2, 5  Aircraft: 21
Shimane Maru: 6, 2, 1, 1 Aircraft: 3

Tenryu: 2, 2, 3, 1
Kuma: 2, 2, 3, 1
Oi: 3, 2, 6, 1
Nagara: 2, 2, 3, 1
Yubari: 2, 2, 3, 1
Sendai: 2, 2, 3, 1
Katori: 2, 2, 3, 1
Mogami1939: 3, 3, 6, 2
Agano: 3, 3, 4, 2
Oyodo: 3, 3, 3, 2

Kako: 3, 3, 4, 2
Aoba: 3, 3, 4, 2
Myoko: 4, 4, 6, 4
Chokai: 4, 4, 6, 2
Atago: 4, 4, 6, 3
Maya: 4, 4, 5, 6
Mogami1941: 3, 3, 6, 2
Mogami1944: 3, 3, 4, 4  Aircraft: 1
Tone: 3, 3, 6, 2  Aircraft: 1

By 1944, the Japanese navy had a lot more AA guns on board, so you can make extra counters for these ones, using the same deck plans.  The classes not in this list were either sunk by 1944, or they use the same values noted above.

Kongo: 6, 6, 10, 7 (only Kongo and Haruna were left in 1944)
Fuso: 7, 7, 11, 7
Nagato: 8, 8, 13, 10  (only Mustu was left in 1944)


Shokaku: 10, 5, 5, 4  Aircraft: 24
Shoho: 6, 2, 2, 2  Aircraft: 8 (only Zuiho was left in 1944)
Junyo: 8, 4, 2, 3 Aircraft: 16


Kuma: 2, 2, 3, 2
Oi: 2, 2, 3, 2
Nagara: 2, 2, 3, 2 (Only 4 left in 1944, Yura was lost in 1942 and Isuzu was converted)
Yubari: 2, 2, 3, 2
Sendai: 2, 2, 3, 2 (Only Naka was left in 1944)
Katori: 2, 2, 3, 2
Isuzu: 2, 2, 3, 6  (only one in the class converted to AA cruiser )

Aoba: 3, 3, 4, 4 (Only Aoba was left in 1944)
Myoko: 4, 4, 6, 5
Atago: 4, 4, 6, 4
Mogami: 3, 3, 6, 4 (Only Kumano and Suzuya were left in 1944)
Tone: 3, 3, 6, 5  Aircraft: 1