B25J and tropedoes

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mdiehl
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RE: B25J and tropedoes

Post by mdiehl »

So you have to pick what is most likely/useful. US medium bombers dropped a heck of a lot more bombs on ships than torpedoes, so the torpedo loadout didn't make the cut.


Japanese medium bombers primarily dropped 60 kg fragmentation bombs. For every torpedo a betty dropped, they probably dropped 1000 60 kg bombs somewhere. Presumedly by your logic, betties will only be regularly armed with 60 kg fragmentation bombs.
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RE: B25J and tropedoes

Post by mdiehl »

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RE: B25J and tropedoes

Post by Panther Bait »

ORIGINAL: mdiehl
So you have to pick what is most likely/useful. US medium bombers dropped a heck of a lot more bombs on ships than torpedoes, so the torpedo loadout didn't make the cut.


Japanese medium bombers primarily dropped 60 kg fragmentation bombs. For every torpedo a betty dropped, they probably dropped 1000 60 kg bombs somewhere. Presumedly by your logic, betties will only be regularly armed with 60 kg fragmentation bombs.

Dropped 60 kg frags on ships? Or on level bombing runs against static targets (airfields, bases, troops, etc.)?

I think they are talking about mission-specific loadouts, in this case naval strike. Land attacks (airfield, port or ground attacks) would have a separate loadout.
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RE: B25J and tropedoes

Post by mdiehl »

There were numerous instances of Japanese naval strike a.c. dropping 60 kg frags because that's all they had at the time or were loaded with same when a target of opportunity presented itself. I'm pretty sure that there's one and maybe two such instances involving Betties operating with the 25fth Air Flot out of Rabaul striking at US ships near Tulagi.

The greater point is that if all that is required is a bit change in a data file, why isn't the change being made before the game ships? USMC B25 drivers were trained to use aerial torpedoes and also depth charges. It was part of their doctrine. If the game is as some suggest not merely to duplicate history, and since the game allows players to specify weapons loadouts, the US player should be allowed to choose torpedoes for B-25s in situations where the player thinks they should be torpedo armed.

After all, the Japanese player has access to ridiculous numbers of aerial torpedoes for betties (reading the AARs they're far more prevalent than their real life availability allowed), to say nothing of large numbers of interior lines IJAAF bombers being assigned to ASW missions (something that the IJAAF regarded as the primary responsibility of the IJN and for which there was little IJAAF doctrine and little IJAAF bombardier training).

It would seem that the flexibility here to cover ahistorical possibilities is once again modeled in a rather one sided fashion. This despite the fact that the change is easy, substantiated by historical USMC doctrine and training, and consistent with the sort of flexibility typically accorded to the Japanese player.
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RE: B25J and tropedoes

Post by mdiehl »

PBJ-1D and later models should have the option to use Mark 13 torpedoes when available. These would of course only be available to USMC units. All PBJ1s should have the option to use DC. as load out.

BTW, late war variants of the Mark 13 torp were not a low and slow weapon. They were designed to be and successfully used at high speeds and higher altitudes. The design limits on late war Mark 13s specified a drop altitude up to 2400 feet at an airspeed of 410 knots.
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RE: B25J and tropedoes

Post by ChezDaJez »

ORIGINAL: mdiehl

PBJ-1D and later models should have the option to use Mark 13 torpedoes when available. These would of course only be available to USMC units. All PBJ1s should have the option to use DC. as load out.

BTW, late war variants of the Mark 13 torp were not a low and slow weapon. They were designed to be and successfully used at high speeds and higher altitudes. The design limits on late war Mark 13s specified a drop altitude up to 2400 feet at an airspeed of 410 knots.


...and let's make sure that it's true early operational performance is modeled as well...

From Navweps.com:

The early models were handicapped by the need to drop them low and slow - 50 feet (15 m) and 110 knots - which made the torpedo planes carrying them more vulnerable to attack. The torpedoes themselves were found to be prone to defects. In mid-1943, an analysis of 105 torpedoes dropped at speeds in excess of 150 knots found that 36 percent ran cold (did not start), 20 percent sank, 20 percent had poor deflection performance, 18 percent gave unsatisfactory depth performance, 2 percent ran on the surface and only 31 percent gave a satisfactory run. The total exceeds 100 percent as many torpedoes had more than one defect.

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RE: B25J and tropedoes

Post by mdiehl »

...and let's make sure that it's true early operational performance is modeled as well...

Makes sense to me.

I suspect that the greater danger is that the late war reliability won't be modeled at all.
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RE: B25J and tropedoes

Post by castor troy »

ORIGINAL: mdiehl
...and let's make sure that it's true early operational performance is modeled as well...

Makes sense to me.

I suspect that the greater danger is that the late war reliability won't be modeled at all.


why not? They also have modelled the increase in reliability of the MK14 as well, that´s already in WITP.
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RE: B25J and tropedoes

Post by Apollo11 »

Hi all,
ORIGINAL: mdiehl

There were numerous instances of Japanese naval strike a.c. dropping 60 kg frags because that's all they had at the time or were loaded with same when a target of opportunity presented itself. I'm pretty sure that there's one and maybe two such instances involving Betties operating with the 25fth Air Flot out of Rabaul striking at US ships near Tulagi.

The greater point is that if all that is required is a bit change in a data file, why isn't the change being made before the game ships? USMC B25 drivers were trained to use aerial torpedoes and also depth charges. It was part of their doctrine. If the game is as some suggest not merely to duplicate history, and since the game allows players to specify weapons loadouts, the US player should be allowed to choose torpedoes for B-25s in situations where the player thinks they should be torpedo armed.

After all, the Japanese player has access to ridiculous numbers of aerial torpedoes for betties (reading the AARs they're far more prevalent than their real life availability allowed), to say nothing of large numbers of interior lines IJAAF bombers being assigned to ASW missions (something that the IJAAF regarded as the primary responsibility of the IJN and for which there was little IJAAF doctrine and little IJAAF bombardier training).

It would seem that the flexibility here to cover ahistorical possibilities is once again modeled in a rather one sided fashion. This despite the fact that the change is easy, substantiated by historical USMC doctrine and training, and consistent with the sort of flexibility typically accorded to the Japanese player.

Aren't the numbers of aerial torpedoes severely limited in WitP-AE compared to WitP (i.e. both land bases and carriers now have finite numbers of available torpedoes)?


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RE: B25J and tropedoes

Post by m10bob »

Not addressed to anyone in particular:

If one were to look for somewhat esoteric examples of what one feels should be in the game, one might look at the basic M 1 Garand bullet.
As issued, the basic load-out had an AP capability, effective against thin skinned APC's, such as halftracks, but as in SPWAW, if this were included, it would be accused of harming game-balance, (at the expense of historical-correctness.
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RE: B25J and tropedoes

Post by tigercub »

ORIGINAL: m10bob

Not addressed to anyone in particular:

If one were to look for somewhat esoteric examples of what one feels should be in the game, one might look at the basic M 1 Garand bullet.
As issued, the basic load-out had an AP capability, effective against thin skinned APC's, such as halftracks, but as in SPWAW, if this were included, it would be accused of harming game-balance, (at the expense of historical-correctness.
Are you saying a M1 can penetrate a halftrack? a 50cal can after a few round hit the same place but a M1 maybe 1 in 200 rounds maybe, but if you hit the slope armor of a German halftrack no way!
I did have one 10 years ago.

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RE: B25J and tropedoes

Post by wdolson »

ORIGINAL: mdiehl

The greater point is that if all that is required is a bit change in a data file, why isn't the change being made before the game ships?

Because the reality of the game code is that it isn't that simple. Expanding loadouts is one of those things that would have required a large effort to rewrite and it didn't make the cut.

Before I saw the code, I thought a lot of things should be easy to fix. It turned out a few were easy, some are pretty hairy, and some are close to impossible without a major effort to rewrite a large section of the code from the ground up. There are several areas I would love to rewrite from scratch, but we had to draw the line somewhere and I'm at peace with where the line was drawn. It's not perfect, but it's much better than WitP.

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RE: B25J and tropedoes

Post by m10bob »

ORIGINAL: tigercub
ORIGINAL: m10bob

Not addressed to anyone in particular:

If one were to look for somewhat esoteric examples of what one feels should be in the game, one might look at the basic M 1 Garand bullet.
As issued, the basic load-out had an AP capability, effective against thin skinned APC's, such as halftracks, but as in SPWAW, if this were included, it would be accused of harming game-balance, (at the expense of historical-correctness.
Are you saying a M1 can penetrate a halftrack? a 50cal can after a few round hit the same place but a M1 maybe 1 in 200 rounds maybe, but if you hit the slope armor of a German halftrack no way!
I did have one 10 years ago.

Tiger!

Yup, There were several rounds made for the Garand and (in Europe anyway) the round most commonly issued(per unit C.O.) was the standard AP round.
There were occasions when German Spkw 251's made the mistake of getting too close to G.I.'s in them and once stitched with a neat pattern, decided to unload and surrender.
BAR could do this as well.
Of course I have fired (and owned)the M1, and just about averything else in the U.S. infantry arsenal from WWI till 1976, (to include that wonderful piece o crap Chaut Chaut)..
Former Ranger, U.S.Army....

If you have never seen them, here is a pic. BTW, while it is not standard ball ammo, several units, including my dad's, ordered nothing but AP's for their unit.

http://www.rt66.com/~korteng/SmallArms/m1clip.htm

http://www.inetres.com/gp/military/infa ... _ammo.html


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RE: B25J and tropedoes

Post by Howard Mitchell »

ORIGINAL: mdiehl

BTW, late war variants of the Mark 13 torp were not a low and slow weapon. They were designed to be and successfully used at high speeds and higher altitudes. The design limits on late war Mark 13s specified a drop altitude up to 2400 feet at an airspeed of 410 knots.

I'd not appreciated how much they had improved until I saw this, thanks Mdiehl. Navweapons.com has an article about the Mk 13 which says...

"The early models were handicapped by the need to drop them low and slow - 50 feet (15 m) and 110 knots - which made the torpedo planes carrying them more vulnerable to attack. The torpedoes themselves were found to be prone to defects. In mid-1943, an analysis of 105 torpedoes dropped at speeds in excess of 150 knots found that 36 percent ran cold (did not start), 20 percent sank, 20 percent had poor deflection performance, 18 percent gave unsatisfactory depth performance, 2 percent ran on the surface and only 31 percent gave a satisfactory run. The total exceeds 100 percent as many torpedoes had more than one defect.

These problems were greatly reduced by the latter years of the war. Torpedoes had fin stabilizers, nose drag rings and tail shroud rings added, all of which worked to slow the torpedo after it was dropped so that it struck the water nose-first and at an acceptable speed. These improved the drop characteristics such that the recommended aircraft maximum launch parameters were increased to a height of 2,400 feet (730 m) and a speed of 410 knots.

The addition of the nose drag ring improved aerodynamic performance by stabilizing the torpedo in flight and reduced air speed by about 40 percent. It also acted as a shock absorber when the torpedo struck the water. The tail shroud ring improved the water run by reducing hooks and broaches and by eliminating much of the water roll which had characterized the earlier Mark 13s. Hot, straight and normal runs now approached 100 percent. To speed availability of the much improved torpedo, the Bureau of Ordnance had tail assemblies built with the shroud ring attached and then shipped these to the fleet for upgrading the existing inventory. By the fall of 1944, the modified torpedo was in general use by the front-line carrier units which were enthusiastic in their praise. On one occasion in early 1945, six torpedoes were dropped from altitudes between 5,000 and 7,000 feet (1,500 to 2,100 m). Five out of the six were observed to make their runs hot, straight and normal. By the end of the war, the USN considered the Mark 13 to be the best aircraft torpedo produced by any nation and it remained in service until 1950".

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mdiehl
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RE: B25J and tropedoes

Post by mdiehl »

Thanks wdolson. It's an answer. I was just considering the fact that the game is supposed to generate substantial strategic variation. Supposing the Kido Butai Death Star or Betty Death Star (real strategic factors in WitP that never existed in real life) were to sink, say, four or five USN CVs in 1942, the allied player might really want (need) to be able to put torps on his B-25s in 1943 or 1944. Even using a historically more plausible set of constraints, he might want parafrag-w.p. load outs, or skip bombing.

Yes, the US .308 bullet came in an a.p. variety. It could penetrate German h.t.s but at only silly close range as I recall. At that range, the better weapon that one could fire from the Garand was the rifle grenade. But the only person I've ever read about making effective use of a rifle grenade was Audie Murphy (who used on to detrack a Mark IV and render it unrecoverable).

For penetrating thin armor, the ground force weapons of choice in both the US Army and the USMC were, in order of desirability and usefulness: artillery, the .50cal a.p., and the 37mm a.p. Of course, that was before man portable stovepipes.
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RE: B25J and tropedoes

Post by DivePac88 »

I’ve never been too concerned about the lack of a US medium bomber in WitP being torpedo capable because of 1000lbr bombs.

Now begs the Question; will US mediums still have 1000lbrs as opposed to their normal 500lbrs, as a loadout option after July 42 (I think), and they pass all the pre-mission checks in AE?
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RE: B25J and tropedoes

Post by spence »



IRL the IJN leadership kept its heavy ships out of range of Allied land-based air. They mustn't have played much WitP.
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RE: B25J and tropedoes

Post by mavraamides »

ORIGINAL: wdolson

While some B-25s were tested with torpedoes, no B-25 ever dropped a torpedo in anger.

Sorry, it's not in AE. B-26s with torpedoes aren't either because they were only used with torpedoes on a coupleof occasions in June 1942 and had zero successes.

Bill

Not to wander off topic, but what's with the blue and green colored air and troop markers in your sig image? Is that new for AE and if so, what do the colors mean?
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RE: B25J and tropedoes

Post by Splinterhead »

The allied nations have their own individual national colors now.
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RE: B25J and tropedoes

Post by AirGriff »

2 wrongs don't make a right. They have ever so thankfully corrected the Betty load out's in AE by the sounds of it. Let's not unbalance the game by putting torps on US medium bombers. If torpedos were that effective for the medium bombers then they surely would have been used IRL. As has been posted, they clearly tried to use them but found it wasn't feasible for no doubt a variety of reasons. There were a LOT of very smart people fighting that war, so I don't think we should second guess them when it comes to such things. I think the guys building the game have done a phenomenal job replicating the tools of the trade back then. It is for us to take those tools and try and use them differently to see if we can do better....and have a lot of fun doing it, of course [:)]
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