Showing posts with label Kawanishi H8K "Emily". Show all posts
Showing posts with label Kawanishi H8K "Emily". Show all posts

Monday, 14 September 2026

Kawanishi H8K "Emily" "Shikishima"


Somebody, somewhere posted this classic photo, taken in the summer of 1944, of the famous Kawanishi H8K "Emily" named "敷島" (Shikishima*), prompting me to collect details about the particular flying boat from different Japanese sources.
"Shikishima" was a transport aircraft for high-ranking officials. It was the third supplementary prototype of the H8K1 Experimental Type 13 Large-sized Flying Boat of which one prototype and four supplementary prototypes were built. The first prototype was powered by Mitsubishi Mk4A Kasei 11 engines while the supplementary prototypes were equipped with Mitsubishi MK4B Kasei 12 engines. These supplementary prototypes were redesignated Type 2 Flying Boat Model 11 on 5 February 1942. 
"Shikishima" belonged to the air unit attached to the Yokosuka Naval District, which operated out of the Yokohama Seaplane Base in Kanagawa Prefecture, as indicated by its tail marking (not visible in the photo) "横鎮74" (Yokochin74, without a hyphen). 
While its exterior was nearly identical to the standard model, the interior was modified to accommodate 27 passengers. In the passenger cabin on the second deck, there were wooden-framed single seats—nine on the right and eleven on the left—facing inward, while the second cabin featured inward-facing benches accommodating four people on the right and three on the left. The specifications for the "Shikishima" listed an empty weight of 16,084 kg and a fully equipped weight of 24,500 kg.
On the nose we can see the antennae of the Type 3 "Ku-6" Wireless Telegraph Set (三式空六号無線電信機) which was an aircraft-mounted radar system that the Imperial Japanese Navy put into use during World War II. The name "wireless telegraph set" was used to conceal its true nature. It is also known as the H-6 Radar or the Ku-6 Radar.

*"Shikishima" is another name for Japan, derived from the ancient site of Shiki, where the emperor's palace was located.

Tuesday, 5 December 2023

Kawanishi H8K2 "Emily" by Jan Voorbij

I just finished my "Emiy", the new tool version of Hasegawa.
Kawanishi H8K2 Type 2 Flying Boat Model 12 "Emily"
Imperial Japanese Navy, 802 Kokutai
Shortland Island (Solomon Archipelago), 1943
Warm regards from Holland.

- Jan Voorbij -

Saturday, 15 July 2023

Flying Boat & Seaplane Base - video

Yet, another NARA video, in five parts, spotted in the "Showakan Digital Archive" by "Shu".



This first part starts with a "Mavis" having one of its engines started. 
More about this particular aircraft in another instalment.

Then we are treated to some amazing stills of a Kawanishi Type 2 Transport Flying Boat or H8K2-L "Seiku"(Clear Skies). Only 36 of this huge transport type, which could carry from 29 to as many as 64 passengers, were built until the end of the war, and "Seiku" images are rather rare. 

Unfortunately, no tail marking is visible so it's difficult to know which unit this particular flying boat belonged to. 
Note on the nose the fittings for H-6 radar antennae. Perhaps this one was a "normal" H8K that was modified to a passenger?

The second part starts with a most interesting "Mavis".
Half white with green surrender crosses. We first discussed this particular aircraft, VERY briefly, here.
Be patient. We have uncovered A LOT, much more interesting information which we will present in the last instalment.


After the "Mavis", it's time for one of the rarest IJNAF flying boats; a Yokosuka H5Y "Cherry" (corrected).


Here's the third part.

Starting with a beautiful Yokosuka/Kawanishi K5Y2 "Getabaki Akatonbo" (Willow) floatplane in pristine condition.
The tail marking is quite obscure.

Followed by an Aichi E13A1b "Jake". Note the fittings for "Jikitanshiki" (air-to-surface radar) on the fuselage side.
Unfortunately, the unit marking has been removed and the overcast conditions don't help. 

The fourth part starts with close-ups of the "Emily" and "Mavis" beaching systems.

The image below is a collage of different stills for the "Emily" system.

The stills below are for the "Mavis". 

In between we can see the slipway with a "Seiku" missing a portion of its port wing.  

And then the cameraman turns his attention to one of the green-cross "Mavis" getting serviced and having its engines started.
The name of the flying boat is "Makigumo" (Cirrus Cloud).


The last part of the video is dedicated to the flying boat base.


It's really incredible that the installations survived the war in such good condition.


And now it's time for the whole story.

A month after the surrender of the Empire of Japan, the government worried about the general situation in Taiwan, especially a collapse of the economy that could lead to further social unrest. In order to allay these fears, the Japanese government ordered the central bank to urgently gather and/or print currency and send it to Taiwan as soon as possible.
The mission that received the approval of the GHQ and General MacArthur, fell on the civilian "Dai Nippon Airways" and an experienced crew as well as a thoroughly inspected and maintained flying boat was chosen. Departure was to be from Yokohama, where two seaplane/flying boat bases existed at the time; one military in Tomioka used exclusively by the Yokohama Kokutai and another civilian in Negishi that was used by "Dai Nippon Airways".
On September 9,1945, boxes full of hundreds of millions of yen, weighing more than 2 tones, were loaded on a Kawanishi H5K "Mavis" named, "Kozu" (probably from Tokyo's Kozu Island, J-BPOA) and the crew of seven, including pilots Commander Ohori and pilot Koshida, took their positions and got ready for take-off. 
The first attempt, at 07:30, was not successful. The flying boat was overloaded. But it seems the engines used up enough fuel the first time, so the "Mavis" got lighter and was able to take off the second time.
The crew had received stern orders not to fly, under any circumstances, over Atsugi base, occupied at the time by US forces, and Okinawa Island, and they were to draw a flight path that had to be strictly observed; any deviation of the flight path or passes over no-fly zones would place them at risk to be shot down. Nevertheless, a little while after takeoff a crew member said: "There are some new and amazing aircraft at Atsugi where MacArthur landed! How about we fly over and take a look?" Right after they deviated from their course, they were quickly surrounded by three "Grumman" fighters, that were probably warned by radar. It was only after the elderly flight engineer Takemiya stuck his bold head with a few white hairs out the window and gestured apologies that they were allowed to continue their originally designated course. 
The crew had again the brilliant idea to attempt to fly over Okinawa to see the devastating results of the fierce battle, only to be intercepted by two reconnaissance aircraft.
"Kozu" and crew finally reached the mouth of Tamsui River in Taiwan at 15:50, where they were greeted by a lavish banquet. They returned to Japan on September 13, full of gifts and several dignitaries.
A most interesting article, in Japanese, about the whole experience can be found HERE.
  
The money transfer mission to Taiwan was repeated on September 15, and this is what is featured in the photo and video. That time the "Mavis" was "Makigumo" (J-BGOE) we saw above.       

As can be seen in the photo above and the video, there were two "Mavis" available, "Makigumo" is in front and another is in the rear. It can be either "Asahi" ("Rising Sun" J-BFOX) or more probably "Sazanami" ("Ripple Waves" J-BFOY).

The photo below features "Makigumo" (J-BGOE) having just alighted in the mouth of River Tamsui, Taiwan, on September 15-16.