Can someone explain how Japanese battleships can sail into Rangoon

[Sredni]

Sorry to necropost, but I figure it's better to just add to this rather then start a new thread. Has anyone figured out if it's just more allowed AI cheating or if it's a bug that the AI can send BB's into ports we can't send anything over 15k tons?

I came out of this fight ahead as far as I can tell. A CA and 2 dd's into the yard (I had another collision blarg) in exchange for one of his BB's in the yard. But you can't always count on luck like this. Normally IJN BB's would kick the crap out of allied forces. I'm having trouble stopping the japanese from resupplying their forces in palembang with small fast transport (I assume) runs. My NavS patrol spots stuff constantly but never raises the detection level, and the marine divebombers stationed in palembang never launch, even when IJN ships are sitting in the hex. So I figured I'd station a large surface fleet there to repel supply runs, but this won't work out if the AI can just send BB's in to crush me.

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Night Time Surface Combat, near Palembang at 48,91, Range 8,000 Yards

Japanese Ships
BB Kongo
BB Haruna, Shell hits 13, on fire
CA Tone
DD Teruzuki, Shell hits 2, on fire
DD Naganami
DD Samidare
DD Hishu

Allied Ships
CA Portland
CA Houston
CA Chester
CA Chicago
CA New Orleans
CA Astoria
CA Dorsetshire, Shell hits 2
CA Devonshire
CA Cornwall, Shell hits 1
CA Exeter
CA Frobisher
CL Mauritius
DD Porter
DD Selfridge
DD Phelps
DD Arunta, Shell hits 3

[USSAmerica]

It is a bug that the AI was able to add BB's and send them there.  It has been fixed in one of the beta patch releases.  [:)]

[Sredni]

Ahh cool thank you. The more I hear about it the more I'm tempted to update to the beta patch. Only thing holding me back is a pathological hatred and fear of beta's.

I know "It's stable and runs fine!" but.... Beta! *shiver*

[USSAmerica]

It looks great, but I'm not using it in my PBEM games.  [;)]

[Bullwinkle58]

ORIGINAL: Sredni

Ahh cool thank you. The more I hear about it the more I'm tempted to update to the beta patch. Only thing holding me back is a pathological hatred and fear of beta's.

I know "It's stable and runs fine!" but.... Beta! *shiver*

Beta is a label here, nothing more. It's stable as all get out. When it becomes "official" it'll just be a name change. There are substantial changes in the current betas that really alter the flow of the game for the Allies. I wouldn't wait.

[Mac Linehan]

ORIGINAL: Bullwinkle58

ORIGINAL: Sredni

Ahh cool thank you. The more I hear about it the more I'm tempted to update to the beta patch. Only thing holding me back is a pathological hatred and fear of beta's.

I know "It's stable and runs fine!" but.... Beta! *shiver*

Beta is a label here, nothing more. It's stable as all get out. When it becomes "official" it'll just be a name change. There are substantial changes in the current betas that really alter the flow of the game for the Allies. I wouldn't wait.

Moose -

I must enthusiastically agree - there are some awesome changes / additions in the beta that really do change the flow of the game - for the better. I can say, once you've tried the beta: "Once in, never out!"

Mac

[HansBolter]

ORIGINAL: USS America

It is a bug that the AI was able to add BB's and send them there.  It has been fixed in one of the beta patch releases.  [:)]

It's in the latest one. I discovered Jap BBs bombarding Palembang and gave the devs a heads up not long ago, which led to the fix.

Reference: tm.asp?m=2789404

[saunders911]

As you can see from the combat report below, the AI battleships sailing up rivers feature is still present in the latest version of the game, whose version number ends in 26b.

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Night Naval bombardment of Palembang at 48,91

Allied aircraft
no flights

Allied aircraft losses
Blenheim IV: 19 damaged
Blenheim IV: 3 destroyed on ground
Hudson I: 18 damaged
Hudson I: 1 destroyed on ground
Blenheim I: 12 damaged
Blenheim I: 1 destroyed on ground
Buffalo I: 34 damaged
Buffalo I: 3 destroyed on ground
Vildebeest III: 3 damaged
Vildebeest III: 3 destroyed on ground
L-18 Lodestar: 5 damaged
L-18 Lodestar: 1 destroyed on ground
PBY-5 Catalina: 3 damaged
PBY-5 Catalina: 1 destroyed on ground
Blenheim IF: 6 damaged
Blenheim IF: 2 destroyed on ground
Buffalo PR.I: 1 damaged
Buffalo PR.I: 1 destroyed on ground
PBY-4 Catalina: 4 damaged
PBY-4 Catalina: 1 destroyed on ground

Japanese Ships
BB Yamashiro
BB Haruna
CA Kumano
CA Suzuya

Allied ground losses:
210 casualties reported
Squads: 2 destroyed, 0 disabled
Non Combat: 10 destroyed, 56 disabled
Engineers: 1 destroyed, 2 disabled
Guns lost 11 (4 destroyed, 7 disabled)
Vehicles lost 9 (2 destroyed, 7 disabled)

Airbase hits 13
Airbase supply hits 3
Runway hits 45

F1M2 Pete acting as spotter for BB Yamashiro
BB Yamashiro firing at Palembang
E13A1 Jake acting as spotter for BB Haruna
BB Haruna firing at Palembang Base Force
Palembang Base Force firing at BB Haruna
CA Kumano firing at Palembang
CA Suzuya firing at Palembang


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[spence]

According to the current port of Yangon (Rangoon) profile the mean depth of the various anchorages is between 6.4m and 9.1m. The depth varies with the tide which has a range of -2m at low tide and ~+6M at high tide. The dredged channel is 100m wide. Outside that channel the depth changes unpredictably. The are two bars at the mouth of the river which are generally crossed only at high tide.

According to Wiki the drafts of the Mutsu class BBs and Kirishima Class BBs ranged from 9m to 9.5m. Strangely (with a completely insane CO) the Mutsu would be able to enter Rangoon harbor with 3 inches (8cm) to spare. The Kirishima could only manage it at high tide. Neither of them could turn around in the dredged channel although they could manage it in the turning basin in the inner harbor.

[Disco Duck]

ORIGINAL: crsutton

Well, a quick look at the "amazing" google earth and using the handy measuring tool provided, shows that the docks of Rangoon are about 45 to 50 miles from water deep enough for safe navagation of a large ship. The Yangon River is flat, wide and full of sediment. I could see no channel and doubt that a river like that would could keep a permanent deep water dredged channel for any lenght of time. Obviously your two ML had ventured out to deep waters to intercept any raiding BBs and got caught with their pants down. [;)] As an aside, my subs have been laying mines in the channel and it is now obvious to me that would not have been possible as well.

The game has lots of abstracts that we have to live with. This is just one of many.

Actually you don't dredge. You use the speed of the water to from the river to dredge it. See the book " Rising tide, the great Mississippi flood of 1927 and how it changed America." The technique was used by Robert E. Lee, ( yes that Robert E. Lee) at one time , and for the purposes of the book how New Orleans was turned into a usable port. Not only is it a very fascinating political book it has a huge amount of engineering details about clearing ports.