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Old 12-04-2021, 08:34 AM   #346
mapuc
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I recall that USA had some problems with their main torpedoes in the start of the war, but this was solved after some years or so.

In the end of -42 I thought they had solve to problems.

Well I may remember things wrong.

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Old 12-04-2021, 12:56 PM   #347
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Quote:
Originally Posted by mapuc View Post
I recall that USA had some problems with their main torpedoes in the start of the war, but this was solved after some years or so.

In the end of -42 I thought they had solve to problems.

Well I may remember things wrong.

Markus

You are quite right. Both the submarine launched Mark 14 as well as the surface launched Mark 15 had serious technical problems. They ran too deep (solved around September 1942), and both their detonators (contact and magnetic) were faulty. It took the Americans almost two years to correct the problems (until about November 1943).
After that the Mark 14 was a very reliable weapon and was the main reason the American submarine force obliterated the Japanese merchant marine. It was used by the US Navy until 1980.


Molon Lobe has already mentioned that at some point the torpedoes will become more reliable in WiTP as well. I don't know, however, how the earlier Mark 10 is modelled in the game, which -while outdated- was a more reliable weapon in the early stages of the war.

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Old 12-04-2021, 04:18 PM   #348
Molon Labe
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15 August 1942
Loose lips sink enemy troop ships

Marshall Islands

Three days ago, we received SIGINT indicating elements of the 4th Division were loaded on a ship headed to Kwajelein in the Marshalls. The 4th Division was previously known to be deployed to Lihue and Johnston, and we were monitoring an evacuation of Johnston at the time. So, assuming the report was accurate, I might have had both a point of origin and a destination for this ship. I already had subs in the Marshalls patrolling as a KB-early-warning network. Looking at the reefs and shallows and the likely direction of approach, I thought it likely the incoming transport would pass north of Wotje, so I placed 2 of 3 subs in that corridor, with the 3rd playing goalkeeper closer to Kwaj.

Today, a troop-carrying Aden class cargo ship was intercepted in that corridor by USS Saury. The cargo ship was unescorted, allowing Saury to attack on the surface. It hit the transport with 9 Mk14s (of 12 fired), 3 of which actually detonated, for a confirmed kill.

That looks like a rare intelligence success in this game. I don't actually know for a fact that the ship is the same one from the report, but the odds are pretty likely since it definitely came from the east.

Sumatra
Sweeps over Palembang eventually cleared the skies of my CAP, but enemy bombers didn't exploit that. 2 Oscars and 1 P-40 were lost.

Thailand
At Tavoy, our bombers hit the enemy troops in a thunderstorm, unmolested by fighters as they were sweeping Pisanoulke aggressively instead. The bombing was mostly ineffective due to the weather. We lost 2 bombers to flak. The enemy base forces shelled our troops, causing light casualties but enough to eliminate an infantry squad, which is discouraging.

The sweeps at Pisanoulke cost a Mohawk and a Zero.


Solomons
Our B-17s severely damaged an enemy sub in port at Guadalcanal.

Hawaii
Kingfishers reported another hit on an enemy submarine. We had a few engagements by surface ships as well, but no successful attacks. I thought I'd have taken care of this problem by now. We've detected 8 subs this turn, that's down from a peak of 10 a few days ago, but even without damage they have to return to port sometime.

Reinforcements and refits
The second Canadian squadron being deployed to Thailand has arrived in Calcutta, India, to have its planes assembled to fly to Rangoon.
SS Sturgeon taken out of commission to begin refit at Pearl Harbor (yes, I still have subs that haven't completed their 4/1942 radar installation. 5 left after this one.)
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Old 12-04-2021, 04:24 PM   #349
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Quote:
Originally Posted by Ostfriese View Post
You are quite right. Both the submarine launched Mark 14 as well as the surface launched Mark 15 had serious technical problems. They ran to deep (solved around September 1942), and both their detonators (contact and magnetic) were faulty. It took the Americans almost two years to correct the problems (until about November 1943).
After that the Mark 14 was a very reliable weapon and was the main reason the American submarine force obliterated the Japanese merchant marine. It was used by the US Navy until 1980.


Molon Lobe has already mentioned that at some point the torpedoes will become more reliable in WiTP as well. I don't know, however, how the earlier Mark 10 is modelled in the game, which -while outdated- was a more reliable weapon in the early stages of the war.
I don't know the actual dud rates of any of the weapons, although I'm sure there's a database editor I could find and use that to find out. But by observation, the Mk14's dud rate is over 50% and the Mk10's is probably lower than 25%.

Per the manual, on January 1943 any torp with a dud rate over 49% will have its rate reduced BY 20%. In September 1943, any torps with a dud rate over 20% will have the rate reduced TO 10%.
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Old 12-05-2021, 01:27 PM   #350
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16 August 1942
Enemy bombardment task force shot up by Palembang's aircraft

Solomons
Our bombardment task force ran into an enemy sub on the way in and damaged it with depth charges. Then we ran into a pair of mine tenders--replacements for the ones blown up by the B-17s--they were easy prey. We shelled Guadalcanal after that, but the ships were were going after had already left. We shot up the airbase pretty good, though.

Sumatra
An enemy bombardment task force of 2 CL and 2 DD made its way up the channel between the mainland and the island off Palembang, running into the KXIII. The destroyers spotted it and depth charged it before it could attack, but, I may have received the benefit of delaying this task force. Usually these bombardment task forces hit me before sunrise--not this time.

We attacked the enemy in waves just outside Palembang's port. The first was a group of Fulmars making a low-level attack, which ended up being ineffective. They were being chased by 3 Zeroes, which may have affected their accuracy. Next came 12 Albacores, escorted by 15 Mohawks. The Mohawks kept the lone Zero still covering the ships at bay, but the small and manueverable ships were mostly up to the task of defending themselves. We got one hit on the CL Naka. 6 Beaufighters came in next, hitting the CL Isuzu with a pair of 250lb bombs and starting a fire. The Fulmars made a second attempt in the afternoon--one was shot down by a Zero, but they got a 250lb bomb hit on the torpedo-damaged CL Naka. The Albacores returned next and whiffed, but they reported that both cruisers were burning and the Naka appeared to be heavily damaged. And finally, the Beaufighters returned, strafing one of the destroyers with 20mm cannons.

The enemy is hitting Palembang with bombers hard--probably about 90 bomber sorties. Damage on the ground is accumulating and our fighter squadrons are wearing down. We got 1 Oscar at the cost of a P-40 and a Hurricane.

Thailand
I'm resting my Tavoy troops and bombers during stormy weather. When it breaks I'm going to hit them again. I also have a reserve brigade on the way down to reinforce my Tavoy army. At Pisanuloke we traded a Mohawk for a Zero

The enemy is hitting Port Blair with massive amounts of naval bombers--at least 60. I think they intend to invade--if they succeed, it's going to make landing reinforcements at Rangoon difficult. I've recalled the Brit CVBG from the southern Indian Ocean--it might be available in time to stop this.

China
The air war over Chengchow is picking up again, 43 Zeroes swept it. We shot down 4, losing 3 P-40s.

Hawaii
Suddenly the submarine threat is diminishing. If I remember correctly, there were only 4 subs detected and all reported heading west.

Reinforcements
BB Washington arrives at Balboa
SS Kingfish arrives at Eastern USA
18th FG/333rd FS arrives at Pearl Harbor (2/25 P-39)
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Old 12-05-2021, 01:56 PM   #351
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17 August 1942
Why so many unescorted troop convoys?

Sumatra
The enemy bombarded Palembang despite their task force getting shot up yesterday, but it was just the two destroyers. I guess the 20mm Hispano wasn't enough to deal serious damage, how disappointing. The cruisers will probably get fixed up in Batavia or Surabaya.

Heavy bombing of Palembang continued, we got 2 Zeroes for 1 P-40. But that P-40 squadron, just having received new aircraft days ago, is down to 4 remaining planes.

Palembang turned away a land attack. Forts have been reduced to Level 1. Casualties 2376 to 762. As discouraging as it is to see the forts come down, the enemy probably needs 2x as many troops as it has here to actually overrun my base, so we're really seeing the consequence of putting so many divisions into Hawaii. But it also means he might be able to put himself over the top of the evacuated troops turn up here.

Japan
USS Cachalot encountered a pair of ships transporting troops near a chain of atolls leading to/from Tokyo harbor--no escorts. It made a submerged attack on one, hitting it with 1 of 4 torpedoes and inflicting what is likely to be lethal damage. The best move for this guy is probably to drop off the troops on the closest atoll before the ship goes down. Cachalot attacked the next on the surface, firing all 14 of its remaining torpedoes, scoring only 1 hit--a dud. We got a few hits on it with the deck gun, but so did the enemy--one of which actually took out the Cachalot's gun. Back to base it goes...

China
The overwhelming number of Zeroes at Chengchow is wearing my CAP down. But we still managed to get the jump on them in a rainstorm, shooting down 3 with no losses. If they were to restart bombing missions, we'd be in trouble.

Thailand and Bay of Bengal
Another day of forecasted storms, so I'll be resting my bombers again tomorrow, as I did for today.

The enemy bombed the hell out of Port Blair again. There's a large task force approaching as well--likely an invasion force. I'm ordering my carriers to step on the gas--I don't think I can stop the landings but I can probably catch them on the beaches. I'll be in Betty range, but too far for the Zeroes to escort them, so hopefully any enemy strike on the carriers will be swatted down.

An enemy army is approaching my Bangkok invasion force, currently holed up in the mountains to keep from being bombed until we can take Tavoy and have a decent CAP over them. I don't have a good force estimate on them, but I think even if it's a large force I'll be OK if I don't try to attack.

Hawaii
For the first time since we moved back into Pearl, we hold no submarine detections in the area. I'm routing a number of convoys that had been going around this area to dock at Pearl, including base forces for upcoming amphibious operations and a squadron of F-4 Lightnings (P-38 recon variants).

Reinforcements
AM Tamworth arrives at Brisbane
SC-699 arrives at Eastern USA (bad planning on my part--I don't have a cargo ship left here to act as a "tanker" to get this guy all the way to the Panama Canal. I noticed this awhile back and I'm rebasing several ships from LA to Eastern USA to keep this from happening again, but this one will be delayed about a week)
SS Peto arrives at Eastern USA
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Old 12-05-2021, 05:22 PM   #352
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18 August 1942
Narrowing down coastal convoy routes

Solomons
More tanker activity at the northern atoll, Ontang Java. The S-42 tried to take a shot at a tanker but was spotted by a PB and depth charged for light damage.

Sulu Sea
The KX detected an enemy convoy and torpedoed a cargo ship in it. The cargo ship was transporting fuel and was set ablaze. This convoy was previously detected on 16 August near Brunei, so we have a pretty good idea where the enemy is routing its fuel convoys out of Brunei/Miri. Also helpful was a convoy contact on 17 August that may narrow down which they this convoy is going, as there are two routes through the Philippine Islands:

Sorry about the hexes, but the colors are pretty important here: ships need blue or white hexsides to move through. So, we've been spotting traffic at Bataan Island in the Luzon strait, so it's entirely possible that that's where this shallow-water convoy route terminates, and that corroborates with the Northeast heading of the 2nd convoy. But we can't rule out Legaspi or Leyte just yet.

There is some bad news in this: this route might have been active for months without me ever spotting it. We could only spot these guys near Japan before we started specifically looking for coastal routes. So his fuel situation might not be so bad right now.

Thailand and Bay of Bengal
The enemy task force approaching Port Blair split, the cruisers bombarded the port while the phibs landed adjacent to the base. Our carriers are nearby but did not arrive in time to launch a strike today--maybe tomorrow.

Japan
USS Grayling intercepted troop transport near Aogoshima, more or less in the same spot the Cachalot had an intercept yesterday. It hit it with 1 of 4 torpedoes with a good detonation--and a confirmed kill. The transport appears to have been empty.

China
Despite being outnumbered, our CAP at Chengchow got 2 Zeroes with no losses--plenty of planes headed back to base full of holes, though.


Sumatra
Another day of being pounded by something like 100 bomber sorties. We're losing planes on the ground and facility damage is accumulating. Flak downed 1 Sally--hardly unacceptable losses.

Reinforcements, Refits, and Withdrawals
Some bad news on this front--I have a transport ship, the Tasker H. Bliss, due to withdraw tomorrow. The ship was severely damaged in the KB's raid on Noumea, and the loss of the repair tender there limited my capacity to repair anything there. The base is something of a junkyard of immobile ships right now. I knew about this withdrawal so I've been prioritizing its repair. I managed to get it out of Noumea to Sydney to be serviced by a real shipyard a few weeks ago. But even there, repairs were slow. I put it to sea with partial repairs about 10 days ago, bound for San Fransisco where the withdrawal will be complete. It's barely limped past New Caledonia in that time. So, starting tomorrow, I'm going to start losing political points due to this ship still being in theatre.

BB South Dakota arrives at Balboa
DD Nepal arrives at Cape Town
129th Infantry Regiment arrives at San Francisco
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Old 12-05-2021, 11:19 PM   #353
Molon Labe
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20 Aug 1942
British CVW defeated by Bangkok's fighters

Sumatra
The enemy dropped his bombing altitude down to a shockingly low 5000 feet. Damage was severe to both sides. We shot down at least 17 bombers with flak, and probably damaged all of the rest of them. Air-to-air losses were an Oscar, a Mohawk, and a P-40.

Airbase damage is at 60%, we lost 10 aircraft on the ground this turn.

Bay of Bengal
The British CVBG launched a strike on the Port Blair invasion task force, which was met by 20 Zeroes and 9 Oscars on long-range CAP from Bangkok. That's a number I wasn't prepared for this far away from their base--we only had 7 Martlets escorting the strike of 4 Swordfish and 12 Albacores, with most of the fighters standing by to protect the fleet against Betties that never came. The enemy CAP nearly obliterated the British carrier air wing. 3 Marlets were downed and they tore into the bombers, taking down 3 Swordfish and 11 Albacores. Only two bombers reached the enemy fleet--the enemy just turned into the attack and avoided the torpedoes.

The enemy bombers kept hitting Port Blair, ignoring our CVBG. They also hit the base with paratroopers, and thanks to the severe disruption caused by the bombing, we weren't able to wipe them out.

This is really highlighting the inadequacy of the Wildcat/Martlet--I'm having great success against the Zero with a lot of other fighters, mostly fighters that are faster than the Zero. But the Zero can outturn and outrun the Wildcat, so it's not like we can hit and run. Worse than the Wildcat are the biplanes that the Brits think are adequate attack aircraft. British Avengers can't get here soon enough.

Reinforcements
AM Gladstone arrives at Melbourne
No.23 Sqn RAAF Det arrives at Brisbane (6/6 P-39, restricted)
No.321 Sqn RAF arrives at Trincomalee (1/6 Catalinas, officially a Dutch command but with access to British aircraft; transitioned to British PBYs and assigned pilots for training)
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Old 12-06-2021, 09:02 PM   #354
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20 August 1942
Carrier battle in the Bay of Bengal - CVE Unyo likely disabed

Luzon Strait
USS Sargo hit a cargo ship with a Mk14 in deep water for a confirmed kill.

90 miles to the south, in the shallows, USS Trout also hit a cargo ship, inflicting severe damage that we expect will sink the ship. The Trout later engaged another ship on the surface, hitting it with 4 Mk14s, one of which exploded. It dealt decent damage with its deck gun as well before it broke off, we also expect this ship to sink.


The Battle of Port Blair - Day 2
I kept my carriers on station another day because they were close enough for replacement aircraft to fly in from Colombo. So we went into this fight at close to full strength despite yesterday's thrashing. We also learned why his long-range CAP from Bangkok was so effective--because it wasn't a long range CAP at all. IJN Hiyo--last seen at the beginning of the month limping away from here with torpedo damage--was back, and it brought its friend, the Unyo.

The enemy made the first strike - 28 Zeroes escorting 12 Kates and 9 Vals. We had 18 Martlets on CAP. They took out 5 Zeroes, but never got to the bombers. We got a lucky break here as my opponent screwed up his altitude settings--the Vals level bombed instead of dive bombed. So they all missed. The Kates attacked as they should, but they also missed. This is a fairly strong task force on flak, but it didn't take any aircraft down.

Our counterattack was 12 Martlets escorting 15 Albacores and 5 Swordfish, they had 46 fighters on CAP. They shot down 4 of the fighters and massacred the Albacores, taking down 14 of them. With 6 bombers getting through, we managed a decent attack, hitting the Unyo with a torpedo--no secondary explosions, fires, or other indicia of serious damage. Intel reported 8 "operational" losses of Vals today, which suggests to me that the Vals he sent on the strike had trouble finding someplace to land.

The Betty attack we were expecting finally came, but in much smaller numbers than we expected--9 aircraft, unescorted. The CAP let them all in. Fortunately, my carriers were more nimble than the enemy pilots were accurate. The CAP took 7 of them out after they attacked. A total of 24 Betties and Nells bombed Port Blair--I bet he wishes they were on Naval Attack orders this turn.

Next was a wave of 20 Zeroes and 12 Kates. 6 of the Kates were carrying bombs--apparently one of the carriers is already out of torpedoes. The 6 Kates with bombs imitated the Vals' high-altitude level bombing from earlier in the day and missed. But one of the torpedo-armed ones got a hit on HMS Illustrious. The only aircraft shot down in this wave was one of my Martlets. (Going from 46 Zeroes to 20 on CAP is another good sign the Unyo is disabled; we didn't shoot down anywhere near 26).

My commanders actually sent a second wave, you have to wonder why--5 Swordfish and 4 Marlets against 21 Zeroes. We lost 2 Swordfish to the Zeroes and 1 more to flak, and the survivors missed.

Our air wing is spent and we don't have more extra squadrons laying about at Colombo, so it's time to RTB. The damage to the Illustrious is minor, nothing that won't buff out in the docks. As for the land battle--the paratroopers took the base today, so the entire amphibious landing has proved to be irrelevant, aside from the massive aircraft losses and possible disabling of an escort carrier.

Thailand
We bombed Tavoy, losing a Blenheim to flak. Our armies attacked but failed to break through. We also confirmed the enemy army advancing out of Bangkok is just 1 division. I'm going to stick to bombardment attacks for now, we outnumber them significantly but they're already in the mountains and have a defensive bonus.


Sumatra
We lost a 17-kill ace over Palembang today; 3 P-40s total were shot down with no victories. The base was bombed again from 10,000 feet, that wasn't nearly as bad as yesterday.

China
We lost 3 Lancers over Chengchow with no victories. Enemy bombers attacked the city instead of the airbase today, causing massive fires.

Solomons
An enemy task force is headed southeast from the Solomon islands towards the New Hebrides. I'm calling up a response from Australia and Pago, but I think local airpower is going to have to deal with this more or less alone.

Japan
USS Grayling was bombed by an ASW aircraft near the Aogoshima chain. Damage is severe--she's headed back to port but there's no guarantee she makes it.

Refits and Reinforcements
DD Mahan beginning refit while under repair in shipyard at Brisbane
DD Reid beginning refit while under repair in shipyard at Brisbane
---overdue AA upgrades for these 2
AD Cascade arrives at Balboa
YMS-130 arrives at Tacoma
81st RAAF Wing arrives at Sydney (unrestricted support unit)
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Old 12-07-2021, 12:12 PM   #355
Molon Labe
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21 August 1942
From Hell's heart, I stab at thee

Japan
In the Okinawa passage, the Grenardier botched a surface attack against a cargo ship, wasting a bunch of torpedoes and only damaging the target lightly with its deck gun.

To the east, the Grayling is losing its damage control fight. We keep getting messages that the flooding is getting worse. It's not going to make it.

Sumatra
2 of ours down, 1 of his. 90+ bombing sorties, we're holding out.

China
3 of ours down to 1 of his at Chengchow, more bombers getting in unmolested. My B-24 squadron is finally online, maybe instead of hunting the tankers, I'll look for the Unyo. With now fast the Hiyo was repaired, I don't think it went all the way to Hong Kong, probably just Saigon.

Thailand and Bay of Bengal
We sent a massive number of sweeps into Tavoy because intel reported he'd moved his fighters there from Bangkok. But our pilots reported no joy...the massive fighter force moved again, they're in Port Blair now. Why? I'm going to start hitting Tavoy hard again, and my reinforcements are about to arrive. Once Tavoy is down, I'll be able to cover my troops pushing into Bangkok, and once Bangkok falls, the enemy supply lines through Malaya will be cut and our armies will start pushing south.

Port Blair will be a problem as a bomber base, no doubt. I may hit it with battleships if I think I can do it with one fleet carrier and one light carrier supporting (I'll pull the Hermes of training duty, but one of the two CVs is due to withdraw soon). But, assuming I can't suppress the new bomber base, I probably can't reinforce Rangoon directly anymore. Kind of late for that, though, I've been reinforcing since the beginning of the war, the damage to his strategic position is done.

Espiritu Santo and the New Hebrides
The task force includes carriers, and they're headed for Efate. I'd say this is another evacuation--a very high-risk one. How desperate for troops is he?

I was going to oppose this with A-20s and B-26s, but now that I know this is a part of, if not the whole, KB, I'm going to take a good shot at it. The level bombers are clearing out to make room for the SBDs of Carrier Air Wing 6, flying in from Milne. The Wildcats of VF-6 don't have the range to make it out here, so the USAAF will provide P-39s as escorts. Between them and a pair of submarines, I should hopefully get reliable intelligence on the number of carriers here so I can decide what else to commit. The force coming in from Australia will just be targets, so they'll hold. But the reaction I mentioned yesterday from Pago...is Halsey. If it looks like we outnumber them--and we very well could if they're finally getting their refits--I'll reacquaint Nagumo with my One-sans.

Lots of scores to settle here, between those troops he's pulling out being responsible for wiping out a USMC regiment plus an army battalion and a base force, and CVW-6 looking for revenge for the loss of the Big E.
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