This page is dedicated to gathering all the possible information about the IJN Light Carrier Zuiho. It is broken down into the following sections:
  • General History
  • Technical Ship Specifications
  • Aircraft Specifications & Identification
  • Real Life Still Images
  • Model Still Images
  • Other IJN Carrier Still Images

  • The Zuiho in her final configuration and camouflage scheme (late 1944)

    The Zuiho was the namesake ship of the Zuiho class of light carriers (a group of two aircraft carriers with sister ship Shoho) built for the Imperial Japanese Navy before World War II. Both ships were originally designed as fast oilers, but were subsequently converted into carriers. Zuiho was never commissioned as an oiler as she was taken over to be finished as a carrier before the ship was completed as an oiler. Commissioned on December 27, 1940, Zuiho played a secondary role in the Battle of Midway in mid-1942 and did not engage any American aircraft or ships during the battle. The Zuiho was not part of the principle carrier task force of Kaga, Hiryu, Soryu and Akagi (carrier Divisions 1 and 2), but she was attached to the actual invasion force. Since the invasion was cancelled due to the carrier task force's decimation by the Americans, the Zuiho retired without seeing any action. The ship participated in the Guadalcanal Campaign during the rest of 1942. She was lightly damaged (2 bomb strikes) on October 26, 1942, during the Battle of Santa Cruz during this campaign; it was her baptism of fire. She covered the evacuation of Japanese forces (Operation KE) from Guadalcanal in early 1943, after repairs.

    Her aircraft were disembarked several times in mid to late 1943 and used from land bases in a number of battles in the South West Pacific. In between engagements, the ship served as a ferry carrier and a training ship. She took part in the Battle of the Marianas (The Marianas Turkey Shoot) and her air wing was seriously depleted. She had a full complement of 30 aircraft, but saw a full half of those aircraft being the "antiquated" A6M2 "Zero" acting in the role of fighter bombers. Zuiho operated north of Leyte Gulf in October 1944 in an attempt to thwart the American's retaking of the Philippines. In this last battle (Battle of Cape Engano) Zuiho served as a decoy for the main striking forces to lure the American carriers away from the landings. She did not have a full complement of 30 aircraft, with her having 12 fighter aircraft being the A6M5 "Zero" and 5 torpedo bombers being the B6N2 "Jill". To the reader this is telling as to the shortage of frontline aircraft production and trained crews to man them. She was finally sunk by American aircraft while fulfilling her task as a decoy on October 25, 1944. She was sunk 2 years minus a day after her baptism of fire. The most famous picture of the Zuiho was during the battle of Cape Engano during the larger Battle of the Philippines.


    Shoho: Happy Phoenix
    Zuiho: Fortunate Phoenix

    Standard Displacement: 11,443 tonnes (11,262 tons)
    Complement: 785

    Length: 203.5M (667'-11")
    Beam: 18M (59')
    Draught: 6.6M (21'-9")

    Flight Deck:
        - Original Dimensions: 180M x 23M (590'-6" x 75'-4")
        - September 1943 refit: 192.6M x 23M (631'-9" x 75'-4")

    An image taken from Tamiya's "Random Japanese Warship Details Vol 1" details the flight deck extension forward

    (As designed-1942)
    8 x 12.7cm (5")/40cal (housed in 4 twin mounts with one of the four in a covered mount: starboard side aft of the funnel)
    8 x 25mm (1") (housed 4 twin mounts amidships)
    30 aircraft
    12 A6M2 Zero
    12 B5N2 Kate
    6 D3A2 Val

    8 x 12.7cm (5")/40cal (no change from original layout)
    68 x 25mm (1") (housed in 10 triple mounts, 4 twin mounts and 30 single mounts. Positioning:Two triple mounts on the stern; two triple mounts near bow (one on each beam); 3 triple mounts on port side amidships; 3 covered triple mounts starboard side amidships aft of funnel. 4 twin mounts near bow aft of triple 25mm postions near bow)

    Machinery: 2 shaft Kanpon turbines
    Boilers: 4 Kanpon
    : 52,000=28 knots
    Oil: 2,400 tonnes (2,363 tons)
    : 14,864KM (9,236 miles) @ 18 knots

    Name Builder Ordered Laid Down Launched Completed Converted Fate
    Shoho Yokosuka Kaigun Kosho 1934 (Tsurugisaki(Sub Tender)) 12/3/34 6/1/35 1/15/39 1/26/42 sunk 5/7/42
    Zuiho Yokosuka Kaigun Kosho 1934 6/20/35 6/19/36 -------- 12/27/40 sunk 10/25/44

        - Laid down as fast oilers. Shoho was converted to a seaplane tender before the final CVL conversion, however Zuiho lay as an incomplete oiler from 1936-1939.
        - Zuiho had her flight deck extented forward in July of 1944.

    Call Sign:
        - Zuiho: JQIA

        - Shoho: JQJA

    Fleet Assignments:
    Division Dates Ships in Division
    Kure Reserve 12/27/40 - 11/5/41 Zuiho
    CarDiv 3/1st Air Fleet 11/5/41 - 4/1/42 Zuiho, Hosho
    1st Fleet/Combined Fleet 4/1/42 - 6/20/42 Zuiho, Hosho
    CarDiv 5/1st Air Fleet 6/20/42 - 7/14/42 Zuiho, Shokaku, Zuikaku
    CarDiv 1/3rd Fleet 7/14/42 - 2/1/44 Zuiho, Shokaku, Zuikaku
    CarDiv 3/3rd Fleet 2/1/44 - 10/25/44 Zuiho*, Zuikaku*(late 1944), Chitose*, Chiyoda*
    * All ships of this division were sunk on October 25, 1944

    Division Dates
    CarDiv4/1st Air Fleet 1/26/42 - 5/20/42

    Commanding Officers:
    Rank and Name (Academy Class) From/To Dates Kanji
    Capt Eguchi Matsuro (40) 4/24/40 - 10/15/40
    Capt Nomoto Tameki (44) 10/15/40 - 9/20/41
    Capt Obayashi Sueo (43) 9/20/41 - 12/5/42
    Capt Yamaguchi Bunjiro (45) 12/5/42 - 7/5/43
    Capt Hattori Katsuji (44) 7/5/43 - 2/15/44
    Capt Sugiura Norio (47) 2/15/44 - 10/25/44

    Rank and Name (Academy Class) From/To Dates
    Capt Higuchi Hiroshi (40) 12/1/36 - 6/15/37
    Capt Kakimoto Gonichiro (41) 6/15/37 - 12/1/37
    Capt Hashimoto Aiji (39) 12/1/37 - 12/15/38
    Capt Fukuzawa Tsunekichi (41) 12/15/38 - 11/15/39
    Capt Ito Jotaro (42) 11/15/39 - 11/15/40
    Capt Jojima Takatsugu (40) 11/15/40 - 8/8/41
    Capt Obata Chozaemon (43) 8/8/41 - 10/1/41
    Capt Izawa Ishinosuke (43) 10/1/41 - 5/7/42


    This section will deal with information I am gathering about the aircraft types and quanities plus the identifying markings and numbering at each aircraft type at each stage of the Zuiho's career.

    June 1942 (Battle of Midway):
    (24 aircraft - partial compliment)
    Her aircraft complement consisted of:
    6 x Mitsubishi A5M "Claude"
    6 x Mitsubishi A6M2 "Zero" fighters
    12 x Nakajima B5N2 "Kate" torpedo bombers.

    June 1944 (Battle of the Philippine Sea):
    (30 aircraft - full design complement)
    6 x A6M5 "Zero" Fighters
    15 x A6M2 fighter/bombers
    6 x B5N2 "Kate" torpedo bombers
    3 x B6N1 "Jill" torpedo bombers.

    October 1944 (Battle of Cape Engano):
    (17 aircraft - partial complement)
    12 x A6M5 "Zero" Fighters
    5 x B6N1 "Jill" torpedo bombers.

    The following are the markings and color schemes of the Zuiho's aircraft throughout her service life. This information was taken from here. This site has a wealth of information on IJN and IJA aircraft markings. I simply sifted through the site and copied over those images that were specifically for the Zuiho. These images are the product of that site and are their property for any copyright/authenticity questions.

    Click on any tail to see the full aircraft image

    25mm ARMAMENT POSITIONING (Final Sortie)

    This "Operation Zuiho" page is a collection of data to assist me in building this ship in a wooden and plastic version at 1/100 scale. As of April 2016 I have begun preparing for construction to begin. One of the most difficult (dare I say impossible) parts of this process has been defining what the Zuiho's 25mm AA mount layout was. As far as all my investigations are concerned, no one really knows what the disposition was of her 25mm mounts; with the single 25mm mounts being considerably harder to define. Only two or three photos of her exist in this final configuration and all are taken from attacking aircraft with limited definition and detail. What is known is that the Japanese put as many single mounts as possible onto the Zuiho for what would ultimately be her final battle. As Ed Low quipped, "25mm guns are cheap and aircraft carriers are expensive."

    So, I have to try to place the 25mm guns as history, other images of IJN carriers of 1944 and 1945 and common sense allow. I also am working with the accepted 68 x 25mm gun barrels.

    The Twin 25mm Mounts (8 barrels):
    The twin mounts are easiest. The general consensus is that they had 4 mounts, equaling 8 x 25mm barrels. These were located ahead of the bridge, under the flight deck, two mounts per side.

    The Triple 25mm Mounts (36 barrels):
    Nearly all post-WWII drawings of the Zuiho had 10 triple mounts as of October of 1944. However, we know that before the flight deck was extended forward, the Zuiho had 2 x triple mounts immediately ahead of the flight deck, on the bow. Once the flight deck was lengthened, were these two triples moved onto platforms off the second set of flight deck support posts? Or were these 2 x triple 25mm mounts left in place and an ADDITIONAL 2 x triple 25mm added to platforms off the second set of flight deck supports? That is the question that begs an answer, but there is zero evidence to support either claim with regards to the fate of those pesky foremost 2 x triple 25mm mounts. I have therefore decided to include the original 2 x triple mounts in the October 1944 version of the Zuiho. Their traverse and elevation would have been more limited than most the other 25mm on this ship, but they would have provided excellent low level firepower off the bow of the ship. So, this means there were 12 x triple 25mm mounts, equaling 36 x 25mm barrels.

    The Single 25mm Mounts (24 barrels):
    The single mounts are by far the most difficult to place on the Zuiho. To add to the difficulty is the addition of "sleighs". These were "portable" single 25mm guns that could be bolted to the flight deck. They could be moved or stowed when flight operations were underway. To me, the sleigh is the ultimate in evidence as to the plight of the Japanese carriers in the last few months of the war. Each sleigh weighed at least 1,000lbs. To man-handle these onto the deck between take off and landings would have been time intensive and a real headache for the crew. They would also have had to drag the ammunition boxes out and back AND picked up all the empty shell casings before planes could operate on the deck. To incorporate the sleighs on their carriers provides a fresh perspective on Japanese desperation. The Japanese could not fill the hangars with planes and pilots by the end, so they had to resort to piling AA weapons on the ship in any way they could. I digress.
    The reason the sleighs make this exercise difficult is no one knows how many were used (5 is the consensus), but why would they stop at only 5? Also, was the number of sleighs put aboard included in the final 68 barrel count or not? I had to make some assumptions: there were 5 sleighs and they were included in the 68 barrel count. Is this historically accurate? No one knows...
    Okay, with 5 sleighs we now need to account for the 19 other single mounts. For the uninitiated: the single mount was very easy to install. The base of the pedestal had a ring mount with 8 bolts. All the crew had to do was find a spot that could support a little under 2,000lbs of weight (gun, ammo, gun crew members milling about) and bolt the gun to the deck. I am over simplifying the process a tad, but you get the picture. No two drawings of the Zuiho I have seen place the single 25mm mounts in the same place. What to do? I really just need to use my judgement and photos of other carriers to place the single 25mm pedestal mounts.
    I will admit that the lack of historical evidence is both frustrating and liberating at the same time. I get to use my own judgement on the layout of these guns and no one can unequivocally say I am wrong... Unless new data surfaces that refutes what I decided to do. I can be confident that I built the model with the information I had at hand.
    Here is the final 25mm layout I have decided upon:

    The positioning and firing arcs of some of the "unknown" 25mm mounts are reviewed here:

    The 2 x triple mounts that were "most likely" under the flight deck at the bow prompted discussion at j-aircraft.com. This picture shows the plan position of those mounts and what their fire arcs would have been horizontally. With firing inhibitors placed to stop the guns from firing at the two flight deck support posts, the lateral traverse of these guns is almost 180 degrees. Acceptable firing arcs!

    The side by side single 25mm pedestals would have probably sported a half moon radial catwalk, to allow the gunners to pivot the gun and not have to worry about the sloping deck.

    These two guns would have been just forward of the hawseholes (where the anchor chain feeds from the deck, into the sea).


    Over the course of several weeks I have been studying the bow section and the arrangement of 25mm mounts. The common understanding is that the Zuiho had 2 triple mounts and 4 twin mounts on the bow of the ship. This understanding has been further augmented recently with a further two triples under the flight deck, just ahead of the superstructure. Then, as mentioned in the previous section, 2 more singles were probably located on the extreme bow. I turn the reader's attention to the four twin mounts and propose to you that there were only two twin mounts. Indeed, the assumed positioning of these four twins was that each pair of twins was conjoined twins (positioned very close together) and on round platforms that extended over each beam. There is absolutely no photographic evident to support this.

    Let me illustrate with images:

    The above image shows what the general consensus was of the layout of the bow 25mm guns. It is wrong.

    We know that there were two triple (or maybe twin) guns under the flight deck fore. We will leave the single mounts out of the image presently to keep the image clearer. Note the closeness of the twin mounts. Now look at the following image of a photo of the ship in action on her last sortie, where the bow section is blown up for the sake of ease of viewing:

    Here we can clearly see one round platform extending out for a twin mount and we can see the raised triple mount bandstand, but where is the second round platform that is supposed to be sandwiched together with the one that is visible?

    I added some coloured red lines to accentuate my idea. First I thought that perhaps the raised triple's bandstand was concealing the forward twin and I added the second red circle where the other twin might have been. Acceptable? Yes.

    Then I looked at another image provided to me where the ship is showing more of a broadside:

    This image is actually pretty cool as the foremost triple mount that is under the flight deck is clearly shown, but I digress. Once again, the foremost twin platform is nowhere to be seen.
    Then I decided to dig up "that" photo of the forward 25 mm guns taken aft of them. I did a little projection and here is what I found out:

    Image A

    There are three mounts (or barrels of those mounts) visible, if not four! Someone else has drawn circles on the barrels to depict how many there may have been of each. The general mistake that was previously made was in assuming that this image was actually of the stern of the Zuiho. It has since been found to be the bow. Here is my investigation:

    Image B

    This image and my markings show the approximate position of the photographer. In "Image A" there is an aerial in the foreground and in "Image B" we can see where that aerial was. I have then transposed the photographer's position to the starboard side with the solid green arrow. With that done we can now compare this bow shot with the starboard wide shot.

    Image C

    This image should be used to cross reference when I speak of the different mount A, B, C, D, X

    Image D

    Okay, I have labeled the mounts from aft to fore as Mount's A thru D in both images above. Let's look at the only real question mark here: Mount B (supposed to be a twin, but looks like a single). It could be a twin, possibly and the angle of the one barrel is completely hiding the second barrel, but that means mount B is very close to mount A. Look at how close in size the barrels of mount A and mount B are. We should see its platform extending out over the beam as it is depicted in the plan drawing, but it is not there. Another argument for Mount B being a single is that single mounts were taller than twin and triple mounts because the gunner needed to stand behind it. The pivot point of a single mount was 1.18M tall and the pivot point of a twin/triple was .825M. Image D shows that, from the angle the photographer took the picture, the photo's features descend as they move away from the camera. That means, if mount A and B were both twins, mount B would be lower than mount A. Mount B is not lower and its pivot point could be drawn as being the same or slightly higher than mount A's. Lastly, mounts A, C and D are all pointed at high angles, why isn't mount B's gun? If it were resting on someone's shoulders, as a single would, the barrel's angle would be more horizontal as depicted in this image.

    I took the bow 25mm image and superimposed the plan view of a 25mm cannon and resized and angled them to match the angles on the image. I think this is quite conclusive. The single mount's (green overlay) pivot point is slightly higher than the twin's (red overlay) pivot point, as a single mount was taller in reality than a twin mount. If both mounts A and B were twins, following the perspective of the photo, then Mount B's pivot point should be lower than that of Mount A's.

    Finally, some people think that the other twin mount could have been aft of mount A and therefore not in this picture. If you look at the plan view image, there is a flight deck support post there, the bridge superstructure flairs out there and there is a lifeboat as well. That location is a major foot traffic area from the bow and bridge to the rear of the ship. It would not have made for an optimal location for a twin mount.

    July 1944

    July 1944 saw extensive increases to the Zuihos AA suite and the lengthening of her flight deck forward. This included the addition of the bandstands on her second support post that were not mentioned in the July 1944 blueprint (7_1944_BP). I can see no evidence that all four twins were ever installed immediately in front of her bridge, although they were "planned" to go there. I think it is only logical to assume the gun placement and rearrangement probably matched what I suggest. I am not stating unequivocally that this is historically accurate, but that I personally think this is accurate and I will be incorporating this into my 1/100 build of her.

    I really imagine the July 1944 blueprints being created before July 1944, using the original deck size, to plan new mounts placements. When the time came, "someone" decided to extend the flight deck forward and changes needed to be made to the layout. With Mount C being added, the placement of the twins needed to be rethought. The original plan made sense regarding the placement of the twins, if the triples stayed where they were at Mount D. But the triples from Mount D were moved onto the new bandstands at Mount C. Now the twins needed to be redistributed to give them better locations. I know all this is conjecture, but as I try to keep my mind open to other possibilities, this one still seems like the most plausible explanation of the sequence of events.

    Before I started this portion of investigation, I thought the flight deck was extended in September of 1943 (I cannot remember where I got that idea from) and I had never seen the July 1944 blueprints. If the flight deck had been extended in 1943, then the July 1944 blueprints would have indicated the extension and, more importantly, my hypothesis would have been on much thinner ice. But seeing as these blueprints were for a planned July 1944 AA augmentation project and then the flight deck was lengthened, the plans would have had to have changed once the longer flight deck was in place. We do not have the changed plans (unless someone unearths them after I have recorded this investigation!). Balancing this knowledge with the fact that the photos "seem" to support my theory, I have come to the following educated, but not proven, conclusions:

    In July of 1944 the following changes occurred:

    1. Fight deck extended forward (fact).
    2. Mount A was installed (fact).
    3. Mount C was created (fact).
    4. The triple guns of Mount D were moved to Mount C (probable, but no evidence).
    5. Mount B was removed (or was never installed) as planned with a twin mount in the July 1944 BP (probable based on photos).
    6. The twin guns planned for Mount B were instead used on Mount D (probable, but no evidence).
    7. A single gun was installed where Mount B was planned to go; creating a new Mount B without the platform jutting out (probable based on photos available).
    8. Mount X had a single gun and remained unchanged (probable based on 1944 BP).

    For clarification of the above information here is the final theoretical 25mm configuration for Oct 1944:

    Mount A = Twin 25mm
    Mount B = Single 25mm
    Mount C = Triple 25mm
    Mount D = Either twin or triple 25mm, but I am now leaning towards twin 25mm (see below)
    Mount X = Single 25mm
    Mount Z = Single 25mm (If this position ever existed it cannot be confirmed with any documentation or images)

    I am leaning towards not including Mount Z as I can't find anything to confirms it's existence.

    I removed the bow mount Z and I also moved mount A and B forward a bit to mirror the photos I have been referencing.

    Photos and plans to support my argument:

    This is a portion of the July 1944 BP as provided to me by D.Kaplan. It shows the following: the flight deck was still short, the proposed positioning of the 4 twins (in pink) and the already placed two triples (Mount D) and two singles (Mount X)

    I further marked up this image by connecting the three visible railing heads with a dotted red line. This shows the perspective angle. If mount B were a twin it's pivot point, marked in teal, would be much lower than mount A's pivot point, marked in yellow.

    I guess at this point I challenge anyone to prove this layout wrong. I have reached the point that I can honestly say that no one has given me any proof (through photos or official blueprints or first person transcripts) that there even were two sets of twins at either combinations of Mounts A and B or at Mounts A and X! What I have received is one July 1944 blueprint that the Oct 1944 photos prove incorrect (or at least that further changes were done to the twin placement after the July 1944 BP was created).


    This section provides you with important information pertaining to the Zuiho that doesn't really fit in any other section:

  • Zuiho had a two-level hangar
  • Both elevators were octagonal and on the centerline. The aft elevator being smaller than the forward elevator
  • She had a single downward facing funnel to starboard
  • Originally designed as a fast oiler with the name "Takasaki"
  • Oil bunkers were designed to carry 2,600 tonnes of fuel oil
  • She was a flush deck design with no island bridge. The bridge was under the flight deck near the bow which was a design feature Japan integrated into all their light and escort carriers. The only country to do so as standard design practice.
  • The propulsion machinery was that of the Kagero class destroyers
  • An auxiliary exhaust stack (also know as a donkey stack) was located aft starboard
  • The "donkey stack" was used to provide exhaust for the heating system boilers and possibly the steam-driven electric generators
  • In September 1943 the Zuiho's flight deck was lengthened forward from 180 meters LOA to 192.6 meters
  • In 1944 the ship received 120mm AA rockets in 6 sets of 28 (3 sets grouped and located aft starboard (aft of the aft covered twin 12.7 mount) and 3 sets grouped and located portside aft/amidships (fore of the aft twin 12.7mm mount))
  • The ship never operated dive bombers. They did use the Zero fighter as a fighter/bomber.
  • To augment the Zuiho's anti-air suite of 25mm guns in 1944, several single 25mm mounts were added to any sponsons where space provided. The Zuiho also had at least 5 single 25mm guns on "sleighs". These sleighs were portable platforms that could be screwed driectly to the flight deck. The sleighs would have needed to have been removed whenever the ship was landing, launching or spotting aircraft.

  • The following is an interesting feature of some Japanese aircraft carriers - especially with the medium and light carriers due to limited flight deck space (across the beam) The 12.7mm twin guns were the heaviest caliber of weapon on these carriers and they were almost exclusively used to shoot at attacking aircraft. They were dual purpose guns, but the battles of the time saw them focused on a single use - disabling or destroying aircraft. Due to the width (beam) of the hull and flight deck, and the need to make the most of these 12.7mm guns, the Japanese designed the flight deck to have an indent in the flight deck behind each of the 12.7mm gun mounts. This allowed the mounts to swivel, at extreme barrel elevation and fire at high flying aircraft over the carrier and even on the opposite beam. The addition of these indents meant that, theoretically, if a plane was flying in a specific quadrant of the airspace surrounding the carrier ALL 12.7mm guns could be brought to bear and fired. These indents allowed for that level of flexibility. However, the drawback to these indents was that they were quite large and probably extended 6 to 8 feet inboard. This literally created holes along the edge of the flight deck that could prove hazardous to landing aircraft. These indents (especially the ones aft of amidships) would probably also have affected spotting of the aircraft on deck during take-off placement. With this in mind the Japanese created a unique system. The gun mount indents were actually created by lifting the flight deck section up and out of the way! As can be seen in the photos below, there are mirror shaped objects adjacent to each indent. It is clear that these would have been retracted and replaced on a hinge system. Whether there was an electric or hydraulic motor involved, hand cranked gears or the piece was lifted via the arms, backs and legs of sailors is not known. In the final image we can see a picture of the same gun mount on the same class of ship while the ship is in harbor. The flight deck edge is uninterrupted by an indent. An ingenious solution put forward by the Japanese.

    The demi-hexagonal indent is clear as is the mirrored flight deck piece laying upside down beside it The coloured lines better illustrate the retracted piece of the flight deck and the "flip of the deck" required to close the indent The Shoho, in harbor, with no interruption in her flight deck behind the 12.7mm mount


    Here are some pictures of the Zuiho Class ships

    The famous shot of the Zuiho on her last day afloat. Flank speed, twisting and turning

    The Shoho showing the class's original shorter flight deck

    The Zuiho showing the ship's original flight deck. Near the stern (left side of the photo) the aux diesel exhaust stack
    can clearly be seen as the only object protruding higher than the flight deck.

    The Shoho aux stack (also referred to as a "Donkey" stack)

    A detailed picture of the 25mm suite of triple and double mounts on the Zuiho's forward port side, looking towards the bow

    A close-up of the bridge under the flight deck. This is the Shoho.

    The Zuiho under construction. The bridge layout is clearly visible - courtesy of j-aircraft.com's message boards

    A close-up of a gaggle of 25mm gun positions on the sponsons of the Zuiho - courtesy of j-aircraft.com's message boards

    The tail marking of an early war Claude fighter.

    An interesting image. By 1944 the Japanese Navy was stuffing 25mm guns wherever they would fit. The bow area is especial proof that this was the case: Four twin 25mm mounts, two triple mounts and two single mounts are installed COMPLETELY under the flight deck overhang. These guns would have only been effective against low flying aircraft such as torpedo bombers. The original drawing is by Dean Stehman. Ed Low colorized it for simple reference. Courtesy of j-aircraft.com's message boards

    Purple mounts - triple 25mm
    Green mounts - twin 25mm
    Red mounts - single 25mm

    A very detailed picture of the single 25MM on a sleigh. The viewer can clearly see the platform, the gun, the gun's sight and the four anchors used to bolt the sleigh to the deck. This image is from Gakken vol 22 and is of the CV Junyo after the war.

    This section will take a look at Zuiho's last known photograph and blow up some interesting portions of the picture. There are so many stories told by this one picture.

    The "S" labels display the position of the single 25mm sleighs. The sleighs are quite small and can be located by finding the debris scattered around them. This debris is actually ammunition boxes and shell casings.

    Detail A - The Donkey Stack pumping out white smoke.

    Detail B - (Right to left) Two covered triple 25mm guns, a range finder and another covered triple 25mm mount. They are covered to protect the sailors operating her from the main stack's smoke and fumes which can clearly be seen in this picture.

    Detail C - The single 25mm sleigh is visible. Looks like a single sailor manning the gun. John at j-aircraft.com proposes that the "sailor" in the picture may actually be a jagged bomb hole. It is hard to discern either way with the limited quality of the image, but the bomb hole would explain why the deck has buckled at the top of the image. The gun is unidentifiable in this picture.

    Detail D - The forwardmost sleigh. Difficult to discern the details with the photo quality. The sleigh and gun look to be in damaged condition.

    Detail E - The triple mount on the port side near the bow. The three horizontal lines in the middle of the mount are the triple barrels pointing out to sea.

    Detail F - The sister triple mount to detail E, but on the starboard side near the bow. The barrels of the gun are not visible. It is possible the gun is training on the aircraft taking the picture.

    Detail G - Circled are the two sets of twin 25mm mounts that are completely underneath the flight deck. From the angle of the aircraft taking the picture we can see that even at that altitude, the aircraft was probably still a clear shot for the gunners on those two mounts.


    Text to come


    This section details some great stills taken from the Wargaming.net company called World of Warships. These images are of the Zuiho as I have ths ship in my account. It seems to be the ship in its second to last iteration as some of the 25mm dual and single mounts are missing. As I understand it, Wargaming.net got blueprints directly from the Japanese government to create the digital represenation of the Zuiho. That may just be an urban legend, but the details are astounding and seemingly correct! You be the judge: