RE: Do-217
Posted: Sun Nov 11, 2007 8:11 pm
Well you just prove once again how today confort is valued over truth.
ORIGINAL: Dili
although I don't do the new spellingsNo matter who is upset, we build credibility for the data set and our methods by insisting on this even handed approach.
Well thank you, for the lack of factual arguments what you resort is to justifying abismal errors to a one source "advantage".
ORIGINAL: Dili
Your claim to "even handed" is not factual. You imply it is just because it came from same person. That not establish "even handed".
Plus when "even handed" source have crucial errors, lacks important details like loadouts you seem to be happy with that. For someone that claims Real Historical Scenario tag that is a paradox.
The fact that you seek the first confortable position and sit there is understandable for the shear size of your work but it is erronous.
If the requests of Luftwaffe for speedbomber would have freezed in mid 1935 you were right. But they didnt. They put dive breaks, they got more engine power, the plane was better than they expected and the military requests changed in part to post Spanish Civil War studies and well resources and comon sense having bombers with only 50kg bombs as normal load doesnt make sense from any point of view. The fact that Ju-88 had only 50kg or less sized bombs in internal bomb bay(no 100kg 250kg or 500kg sized) didnt triggered a warning sign to you is strange. Do you think Ju 88 the most important German bomber attacked most targets with 50kg bombs?
I do not claim to be "even handed" - I am even handed. If you don't believe it - you are filling in the blanks with assumptions - not with facts. I add, subtract and modify things of all sorts for both sides - based entirely on my understanding - which is not static - but dynamic - changing over time - as I am edified by reading and members of the Forum or consultation with professionals. Just because you don't agree with me on this or that does not mean I am not a trained, scientific thinker who is even handed on principle: I am wether or not you care to recognize it.
The Real Historical name was coined for a number of reasons - partly in imitatio nof CHS - partly in imitation of RSH (Real Sub Hunter) - partly because it was better than my own longer proposal. Three letters was the right length, and the particular combination is useful shorthand. Asked to change it by Andrew - by the time I agreed he changed his mind and asked it be kept - so it was. The use of "historical" is partly an honorific - of CHS - and a way to show lineage and respect. The use of "real" was also partly to imply we don't have to refuse to change things we know are wrong because some "plank holder" objects - that is not part of our process. We hope we can do better than CHS by having a larger team - an open one ANYONE can join - even critics - THEIR choice. We hope that being open minded and allowing things to be modified - even after that section is "completed" - aids in getting a more historical product. But ultimately there are limits. For me these include matters of respect. [Oddly - I who am always respectful sometimes am considered not to be - but at least I don't try not to be] But critically they include practical matters. I really don't believe William Greene and Bill Gunston or Weal and his co authors are "factually wrong" - even if you do. I admit their references - for sound economic reasons - do not include all data - (the books would not be published if they had everything - or affordable) - and I regret that is the case. But after decades of work with aviation, including working as a resident engineer at Boeing,
I can "fill in the blanks" - estimating the absent data with some precision. I understand what the significance of weights and performance data means - and I don't find the absent data that troubling: I have been able to build a spreadsheet that IS complete. When I come across a particular case where I now have the absent field - I find my estimates were very good most of the time. I have seen nothing to change my entries that a Ju-88A has a normal bomb load of 500 kg or a max load of 1500 kg either. The probability is this is a far better set of values to use for the typical missions of early Ju-88s than using 3000 kg would be. And since the game does NOT use max load - what difference does it make? The internal bomb bay is still limited to 500 kg.
I think you are having trouble with basic data principles. It really is normal to get a spread of data if you dig deep enough - and almost always ALL the sources are honest and correct in some sense or other. The Ju-88A evolved over years of time - at a time that aircraft evolution was very great per year - and I have no doubt whatever that some variant or other really uses whatever data you can find. That does not mean we should assume an EARLY variant used data likely associated with a LATER one. For example, we know that a Ju-88A could carry a torpedo - but it could not do that before the torpedo was developed and adapted - and you indicated that occurred in 1942 - so it does not apply to the variant we are looking at here.
Where we might compromise is if you can argue that the Ju-88 is an exception for some reason - that it so often used external loads we might want to pretend that "normal load" is greater than internal load - and reduce normal range so it is the range with that load. Since it appears that in many configurations NO bombs were carried internally at all (if external ones were carried) - we might then say "half of external load = normal load" and also we might assume "internal drop tanks" as part of our range estimate for that special normal case. This is not wholly unlike a Betty or Nell which in some sense have no maximum load at all - or where normal load = maximum load.
One anomoly I see in your (and other) data is a max load for some variants of 2.4 metric tons - yet if internal load was 0.5 tons - and there can be 2 1000 kg external (or 4 500 kg) external bombs - why is it not 2.5 metric tons - ever - in any listing? Seems odd - but not too important. IF we were to think of using ONLY the external load - half of 2 tons would be 1 ton - still not any better than a Ki-49 or Ki-21 - so why would we want it?
Why would we NOT want a Do-217 or an HE-111 in preference to a Ju-88? There the normal load is 8 x 250 kg bombs - and that is not maximum either.
Actually, Axis thinking in the 1930s (in both Germany and Japan) was that 50 kg bombs were normal. This was not really different from thinking either: many US and British designed bombers specified 250 pound bombs - which are in the same league as 220 pound bombs.
max loads are not often used (and come with a severe range penalty).
designed in the same period - or a Hudson - Boston - name it Allied bomber fitted for 250s.
It was also clever to have "plumbed" the bomb bays to permit this. It is something similar to using "drop tanks" on fighters, only these are "undroppable tanks" if you catch my meaning. But it is a good idea to permit operational flexability. What you don't get is great range with a great load.
Do-217 with a 3968 pound bomb can carry NO OTHER bombs - although its bomb load is nominally twice that - apparently because of the weight of the mount.
where AND WHEN are these documents from? A 1944 loadout table is not going to tell us much about 1940 loadouts
Ju-88A5
For example, we know that a Ju-88A could carry a torpedo - but it could not do that before the torpedo was developed and adapted - and you indicated that occurred in 1942 - so it does not apply to the variant we are looking at here.
I have seen nothing to change my entries that a Ju-88A has a normal bomb load of 500 kg or a max load of 1500 kg either. The probability is this is a far better set of values to use for the typical missions of early Ju-88s than using 3000 kg would be.
Why would we NOT want a Do-217 or an HE-111 in preference to a Ju-88? There the normal load is 8 x 250 kg bombs - and that is not maximum either.
I think you are having trouble with basic data principles. It really is normal to get a spread of data if you dig deep enough - and almost always ALL the sources are honest and correct in some sense or other. The Ju-88A evolved over years of time - at a time that aircraft evolution was very great per year - and I have no doubt whatever that some variant or other really uses whatever data you can find. That does not mean we should assume an EARLY variant used data likely associated with a LATER one. For example, we know that a Ju-88A could carry a torpedo - but it could not do that before the torpedo was developed and adapted - and you indicated that occurred in 1942 - so it does not apply to the variant we are looking at here.
Where we might compromise is if you can argue that the Ju-88 is an exception for some reason - that it so often used external loads we might want to pretend that "normal load" is greater than internal load - and reduce normal range so it is the range with that load.
so the standards for data are the same. That is why Weal and Gunston are so good: they list almost every plane for every nation. [Curiously both references have exactly the same title: Combat Aircraft of World War Two] But they don't list every plane, nor do they give us all the data for every plane they do list - so we need more sources.
One anomoly I see in your (and other) data is a max load for some variants of 2.4 metric tons - yet if internal load was 0.5 tons - and there can be 2 1000 kg external (or 4 500 kg) external bombs - why is it not 2.5 metric tons - ever - in any listing? Seems odd - but not too important. IF we were to think of using ONLY the external load - half of 2 tons would be 1 ton - still not any better than a Ki-49 or Ki-21 - so why would we want it?
But it is neither practical nor good practice to run down esoteric documents when we do not have to do so
The Ju-88A4 with an internal tank had an RHS range = 30 hexes for extended range of 10 and normal range of 7
ORIGINAL: Dili
Actually, Axis thinking in the 1930s (in both Germany and Japan) was that 50 kg bombs were normal. This was not really different from thinking either: many US and British designed bombers specified 250 pound bombs - which are in the same league as 220 pound bombs.
My point was that to make it inflexible and only 50kg or less was not usual nor comon and a motive of warning for someone reading it. It was also less than the "normal" 100kg(British and Italian) and 250kg(German) bombs.
ORIGINAL: Dili
max loads are not often used (and come with a severe range penalty).
That wasnt my point. My point was your "fact" that a Ju-88 could not take a 1000kg bomb or could only take 2x500kg and could only take 1500kg maximum.
Also the fact that apparently it is okay for a He111 go for maximum warload weight and not Ju-88.
I dont defend maximum loadout for a typical bomber in this kind of scenarios(it would have been diferent for a close support plane). A 2000 normal vs 1000kg extended would be good.
ORIGINAL: Dili
It was also clever to have "plumbed" the bomb bays to permit this. It is something similar to using "drop tanks" on fighters, only these are "undroppable tanks" if you catch my meaning. But it is a good idea to permit operational flexability. What you don't get is great range with a great load.
I must point out that was a not uncomon occurence, many WW2 bombers have the capability to have fuel cells in bomb bay, tough not moving the offensive load to external that was mainly linked to the diving bombing possible with Ju-88 and also the tiny size of bomb bay. Note that Ju-88 still had the capability of 2x900 lit external tanks.
ORIGINAL: Dili
Do-217 with a 3968 pound bomb can carry NO OTHER bombs - although its bomb load is nominally twice that - apparently because of the weight of the mount.
Usually loadouts lists do not list assymetrical weight and i think they weight enough to not make it possible a double load. Same happens with Ju-88 it can only take one 1800kg bomb.
where AND WHEN are these documents from? A 1944 loadout table is not going to tell us much about 1940 loadouts
I dont know but the Rustzustands were from begining of Ju-88 A projects, the A1 already had the bomb racks and the fuel configurations. I presented in page 2 an image with range with a 2400 kg bomb load for A1 variant in 1939. There is a photo of a 1000kg bomb being loaded in a Ju-88 in 1941 in Squadron-Signal Action 085 booklet for or in Greece attack.
Ju-88A5
Note that Ju-88 A5 appears earlier then A4. When A4 with new engines got later in being fielded it was decided to make an interim version with some improvements that were for A4.
Bad Allied intel attributed the A5 to Japan. Most of this bad intel had a foundation: Japan either paid for the development of the aircraft (FW-200), bought licences (Me-109 or Ju-87), or it was actively negotiating for one. So possibly the plane we should consider is the A5 - which indeed seems to pre date the A4 - wierd but true. Similarly - A9 and A10 are earlier than A8 - go figure.
ORIGINAL: Dili
I have seen nothing to change my entries that a Ju-88A has a normal bomb load of 500 kg or a max load of 1500 kg either. The probability is this is a far better set of values to use for the typical missions of early Ju-88s than using 3000 kg would be.
Oh sure but He111, Do 217 can? Can you explain that reasoning?
You are fast talking about maxloads of Do 217, He 111 but for Ju 88 it stays at 1500kg. The only explanation is that you were induced in error by Bill Guston & Co.
All He111,Do217,Ju 88 had similar all up weights with 13-16t. Being the He 111 with a less powerfull engine. So unless some engineering miracle their loads cannot be much diferent unless a drastic cut in range.
Like i said above the typical mission could be 4x500kg and the extended range 4x250kg or 2x500kg.
Normal bomb load of 50kg bombs doesnt make sense.
ORIGINAL: Dili
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It will be interesting to know how Ki-48 works as a Dive bomber.
This is not very hard to do: it is in all but the briefest articles on the Ki-48. The I model was a horizontal bomber made in imitation of the SB-2 - which impressed the Japanese at Nomanhan. The II model doubled the bombload and involved extensive modification to become a dive bomber - which technology was then used on a variety of later two engine fighter bomber projects. See in particular our standard for Japanese aircraft, Rene Francillon's Japanese Aircraft of the Pacific War. The Ki-48 II is also armored - which the I model is not. It is a much better plane than the I - but not in my view quite as good as a Ju-88. Oddly - given the data I have found - they have a similar range.
But does anyone want it????
But the standard remains the same for the He - 111: it would not be able to lift its maximum bombload.
Don't be so upset about variations among and between these
In any case I am willing to rate a Ju-88 for 4 x 250 kg bombs - but that is not any advantage over a Japanese bomber with 1000 kg bomb load
ORIGINAL: Dili
The 900 lit tanks could only be used without any external weapons. Theoretically there could be 2x250kg in not usually used external racks but that would bust the max weight if we assume of course that internal bomb bay is full.
Ki-48 is not in same ballpark as Ju-88 it is a tinier plane. How Ki-48 launched it's weapons in a dive? We lack much info about it.
REPLY: There is quite a bit of information about it. What do you want to know?
But the standard remains the same for the He - 111: it would not be able to lift its maximum bombload.
What do you mean by this? if it cant lift how it is maximum? All loads are inside 13760kg
REPLY: 8 x 250 kg = 2,000 kg. 2000 kg < 13760 kg. What is the problem?
Don't be so upset about variations among and between these
?! Ju-88 can take 3t a little bit less than Do-217 and He111.
REPLY: Apparently not. I see no case where it carries more than 2.4 tons - and am sure that is an increase from the early versions. More than that, there are limits I don't really understand: why it can carry a very heavy assemetric load but not an overload with a complimentary weapon? But for some reason it appears this was the case - and only if it was not might it go to 3 tons. It does appear there were many variations of loadouts - and that one has to consider fuel as well as bombs in many instances (because of the possibility of external and/or internal tanks - apparently two of each). I think that a lot of confusion arises because of the sheer number of possibilities - which increase over time - eventually including torpedoes and probably missiles.
In any case I am willing to rate a Ju-88 for 4 x 250 kg bombs - but that is not any advantage over a Japanese bomber with 1000 kg bomb load
Ju-88 can take 2t for normal range and 1t for extended. That put it's better than a comon Japanese bomber. It is curious that in config C(bomb bay all with gas - albeit the 680kg tank is not topped it is only with 150kg) it could take 2x1000kg bombs but is not listed for 4x500kg bombs which migh mean the 4 racks were more weight than the 2 for 1t bomb or the nominal 500kg bombs were not really 500kg but 500 plus something. So if we talk about 4x500kg bombs and config B that gives us 2120kg of Fuel and 2t bombs; An A1 model had 2340km range with 2100kg of fuel and 1.5 t bomb load. So i would say conservatively that more than 2000km would be the range of A4 with 2t bomb load of 4x500kg bombs.
I do agree that the loadouts seem to have some curious options - and I think I said that above. The Japanese case is confusing because essentially the bombers are designed such that full load = normal load. They end up very similar to the Ju-88 in fact - in most instances - although the later ones have more range. I see no advantage to changing what we are doing re horizontal bombers. But as a dive bomber - I think one might want the Ju-88 vs a Ki-48. But no one has said so - not even you - so far (although there are posts I have yet to read).
Btw i have forgot to post the sources: The page 2 range/bomb/loads i finally discovered it came from Squadron Signal 085 Ju-88 Part1 and the 3 bomb loads configs came from http://www.ju88.equitatura.de/rustsatze_e.htm. Root: http://www.ju88.equitatura.de/Index2.htm.
ORIGINAL: Historiker
I'm sorry I haven't read everything, but as I was busy the last days it's really much and my english could be really better to improve my reading speed...
Well, what's the discussion, now?
The change the Ki-48 II to Ju-88 as Dive Bomber? As the Ju should be better, I would like this change.
To add He 111 and/or Do 217 to improve the IJAAF bomber capacities? As far as I know, both of them should be better than most of the Japanese equipment - so please add it as well!
How is the bombload of Bombers defined, that can load Torpedoes? Is it always exchanged by a 800kg bomb or is it in some connection to the maximum load? If the second, it would be nice to give the added bomber the ability to carry Torpedoes, as well!
Is the Fw-190 already out of discussion (sorry for not reading all)?