Search found 71 matches

by Brad Fischer
Sat Dec 16, 2006 6:58 pm
Forum: Hypothetical Naval Scenarios
Topic: Yamato vs. Spruance´s Battleships
Replies: 93
Views: 30100

Brad, How are you determining danger space? Traditionally, danger space was the beaten zone between over and short rounds in which the target was liable to be hit. It did not involve just the hull between waterline and weather deck, but included everything above up to the flag flying at the mast he...
by Brad Fischer
Tue Dec 12, 2006 11:10 pm
Forum: Hypothetical Naval Scenarios
Topic: Yamato vs. Spruance´s Battleships
Replies: 93
Views: 30100

Lutscha: But even the worlds best optics could not match the Mod Mk 8 or Mk 13 radars. Except if we allow the hit/straddle ratio at extreme ranges. I think you’re focusing a little too much on danger space (i.e. angle of fall). Here is a quick look at danger space from a generic battleship target w...
by Brad Fischer
Thu Nov 30, 2006 5:54 pm
Forum: Hypothetical Naval Scenarios
Topic: Yamato vs. Spruance´s Battleships
Replies: 93
Views: 30100

Something different, how can I order Warship International without a Credit Card to Germany? I´d like to have the volumes with your gunnery paper. You might want to go to http://www.warship.org It should have ordering information. Fast Battleship Gunnery During WWII I believe will be in Volume 42. ...
by Brad Fischer
Thu Nov 30, 2006 5:50 pm
Forum: Hypothetical Naval Scenarios
Topic: Yamato vs. Spruance´s Battleships
Replies: 93
Views: 30100

Yes we had this discussion not too long ago. Target size – and its relation with angle of fall – is just one part of the equation. Ignoring MPI errors for now, target size and dispersion are the two remaining components for hit probability calculations. Regarding target size if we assume a mean gun ...
by Brad Fischer
Thu Nov 30, 2006 2:51 pm
Forum: Hypothetical Naval Scenarios
Topic: Yamato vs. Spruance´s Battleships
Replies: 93
Views: 30100

Hi Tiornu. I´m well aware of the visibility problems that a 40K yard range will give any BB. Anyhow the Yamato still have an advantage between 25K and 35K because, even at range of the American BBs, the Japanese´s less steep angle of the AP shells could find the target more easily than the USN. Whe...
by Brad Fischer
Tue Nov 28, 2006 10:44 pm
Forum: Hypothetical Naval Scenarios
Topic: Yamato vs. Spruance´s Battleships
Replies: 93
Views: 30100

As dangerous and lethal as Yamato is, this isn’t even close to a ‘fair fight’ (which is the way it’s supposed to be). Yamato would quickly bludgeoned to death in very short order. It wouldn’t even be surprising it she didn’t even score a hit on the American ships. Undoubtedly the Mark 8 equipped shi...
by Brad Fischer
Tue Nov 14, 2006 12:59 am
Forum: Hypothetical Naval Scenarios
Topic: Littorio or Vittorio Veneto instead of Bismarck
Replies: 17
Views: 10008

British postwar tests showed that German heavy guns had more dispersion than British guns. But that's not a bad thing. Low-trajectory guns will always show greater dispersion, but that doesn't necessarily mean less accuracy or fewer hits--in fact, the opposite is true. The low-trajectory weapon has...
by Brad Fischer
Sat Nov 11, 2006 12:27 am
Forum: Naval Technology
Topic: Effective battle ranges
Replies: 18
Views: 8194

Hit Probabilities

This is an interesting discussion. I think that there is perhaps too much focus placed on dangers space – which is obviously a function of angle of fall, which in turn is related mostly to IV – but when talking about straddles and hitting efficiency in general dispersion arguably plays a much larger...
by Brad Fischer
Thu Nov 02, 2006 3:13 am
Forum: Hypothetical Naval Scenarios
Topic: Vanguard and Hood in the denmark strait!
Replies: 10
Views: 3681

Yes Tiornu is right, radar has a significant impact even in conditions of good visibility. Even long base stereoscopic RF’s will exhibit a significant spread from cut to cut in a ranging series. This is why multiple range sources are plotted and a mean range line is plotted to reduce this error. Add...
by Brad Fischer
Fri Oct 13, 2006 10:52 pm
Forum: Naval Technology
Topic: Iowa Class real performance
Replies: 67
Views: 30844

For Mr. Jurens , thanks for your replies, they are most technical and, at the same time, very clear containing no ambiguities. It seems, so, that the 15" Bismarck´s guns would never fully penetrate Iowa´s armour at any given range. This settles for once and for all, in great part, a discussion that...
by Brad Fischer
Fri Oct 13, 2006 4:32 pm
Forum: Naval Technology
Topic: Iowa Class real performance
Replies: 67
Views: 30844

Dave Saxton wrote:What is the exact angle of the face plate? I'm figuring 30*. Is it more?
Yes, the plate is laid back to 36°.

Brad Fischer