The case surrounding the Sôryû is more complex. The
photographic record of Sôryû is limited, and the available
plans of her are much less detailed than those of Akagi. For instance,
it was not possible to determine where she carried her landing light
arrays from either the photographic record or the line drawings
available. However, a strong case can be made on the basis of other
Sôryû was a much smaller ship than either Akagi or Kaga.
While the latter were built on top of capital ship hulls (a battlecruiser
and battleship, respecitively), the Sôryû and her slightly
larger sister Hiryû were based on heavy cruiser hulls and
machinery sets. Yet they mounted an airwing and anti-aircraft armament
that were similar in scale to the larger fleet carriers. As a result,
these were very tight, cramped designs, and this is reflected in
the layout of their anti-aircraft armament and fire-control facilities.
Sôryûs 25mm galleries are smaller, contain fewer
gun mounts, and are more cramped. Type 95 directors are often mounted
practically adjacent to the mounts they control.
As a result, it is difficult to find any galleries aboard Sôryû
that match the six requirements set out previously. The only likely
candidates are the P#2-P#4 and P#5-P#7 galleries on the port side
of the vessel. Each contains three 25mm mounts. However, the P#2-P#4
gallery can be dismissed because of the complex hull structure directly
beneath the gallery (please refer to the portside view of Sôryû
in Figure 15 above). The bulkhead is clearly not flat in this area,
and there are no portholes in evidence.
Similarly, the bulkhead underneath P#5-P#7 is largely occupied by
boiler room ventilator intakes. Not withstanding that the wreckage
is partially crushed in the center, we find it unlikely that we would
have missed seeing a structure as prominent as a ventilator trunk
in this vicinity. And no portholes would be visible in such a structure.
addition, there is a Type 95 director directly between P#5 and P#6,
and another platform directly abaft P#7, meaning that the gallery
structure does not match the rather expansive gallery seen in the
wreckage, which continues 7-8 feet in both fore and aft directions
without encountering any other platforms.Lastly, even though we have
no direct evidence of light array placement aboard Sôryû,
we feel that it is less likely that these arrays would be mounted
in the vicinity of the two portside 25mm galleries. Landing light
arrays tended to be located near the quarters of the ship, whereas
these two galleries are fairly amidships.
The resulting picture is of a ship whose primary physical features
cannot match the wreckage as seen on the bottom, for a host of circumstantial
reasons. Even without direct evidence as to the placement of the landing
light arrays, we feel confident in dismissing Sôryû from