Monday 27 March 2023

Danilo Renzulli's 1/72 Kawasaki Ki-48 'Lily'

Danilo Renzulli's second Japanese Army twin, the Kawasaki Ki-48 'Lily' Type 99 light bomber (99 Shiki Soh-hatsu Kei Bakugeki-ki  -九九式双発軽爆撃機, informally referred to as 99 Soh-kei  -九九双軽) was built from the much older but unsurpassed Hasegawa kit, first released by Mania in 1973 with the mould taken over by Hasegawa and the kit re-issued under their label and with new box art in 1977. Danilo's kit was the first Hasegawa release with the strange green sky box art of Shigeo Koike, stored unbuilt for over 40 years and surviving a few moves.

The busiest step for Danilo was the interior construction, a task that he accomplished with the help of a dedicated Eduard photo-etch fret and a few modifications. As shown in his photos the front and rear guns mountings were constructed with 0.3 mm brass tube. The forward machine gun was cemented to the clear part from inside while the gun barrel was inserted from outside at a later stage.

Danilo fabricated new undercarriage leg covers cut and bent from aluminium sheet. The rear transparencies were partially substituted by Pavla vacforms after the original was broken. 

The engine air intakes were modified to  Ki-48-II standard. Exhausts were made from copper tube while the pitot tube was made with  0.5 and 0.3mm brass tubes. The wing navigation lights were fabricated from transparent (blue and red) toothbrush handles.

Danilo cut the Sentai tail insignia masks himself, with the hinomaru spray painted using Maketar masks. The camouflage colours were his personal mix using Mr Color paints.

Danilo's model represents an aircraft of Hiko Dai 208 Sentai, (Yasushi No.8328) originally formed in March 1941 as Kyodo Hiko Dai 208 Sentai, an Air Instruction Regiment based at the Paichengtzu Air School in Manchuria (together with the 204th Air Instruction Regiment and 95th Air Instruction Regiment) as part of a planned build-up in anticipation of possible war with the Soviet Union. In August 1941 the Kyodo units were re-designated as the Paichengtzu Instruction Air Brigade under a Brigade HQ. In November 1942 the Brigade HQ and 208th were transferred to the 6th Air Division in the Southern Area together with an Air Sector Command and the 209th Instruction Airfield Batalion.    The tail insignia shown, representing '208', was adopted after May 1944 but it is not known whether it was applied in distinguishing Chutai colours. The previously used insignia was applied in white for the 1st Chutai. The unit actively participated in the second and third New Guinea operations and subsequently in the Philippines campaign, by February 1945 being reduced to only six aircraft.   

With very special thanks to Danilo for sharing these images and details of his build of this classic kit.

Image credit:- Box art © 1977 Hasegawa Corporation; All model photos © 2023 Danilo Renzulli

Thursday 23 March 2023

Danilo Renzulli's 1/72 Ki-54

Danilo Renzulli has kindly shared these images of his Tachikawa Ki-54 'Hickory' model in 1.72 scale made from the Special Hobby kit and representing an aircraft of the 10th Dokuritsu Hikodan Shireibu (Independent Air Brigade Headquarters) as used to convey the Japanese surrender delegation under Lt General Masao Baba to Labuan, Borneo in August 1945.

Danilo had long been waiting for a Ki-54 kit, wondering why the type had not received the attention of kit manufacturers and when the Special Hobby kit was released in 2021 expected a 'non plus ultra' production. He was disappointed to find a kit not in line with their most recent production but with an older production appearance. Danilo comments: 'I do not mean the kit has great faults but they were expected to offer a much finer product and much better details'. He thinks that once the model is finished it's not bad at all but he encountered some fit problems with the interiors which needed a lot of work before successfully squeezing  them into the fuselage. The lack of photo-etch compelled him to rebuild at least part of the pilots' seats with aluminium sheet - remarkable work shown above. As can be seen below he also embellished the passengers compartment with a few details and added window curtains using small paper tissue pieces. 

Danilo found the window. transparencies troubling to fit from inside the fuselage and in most cases he had to re-shape and adapt them, deciding to replace the smallest transparencies with Micro Kristal Klear at a later stage. He filed and sanded the kit windows flush to the fuselage then completed them with very fine sanding paper, toothpaste and polishing cream. 

Danilo thinned the wing trailing edges to a knife sharpness and re-positioned the elevators. He also enhanced the undercarriage fashioning his own replacement components.

For painting he began with Tamiya spray as primer followed by Alclad black base and a top coat of White Aluminium. The camouflage mottle was prepared with a mix of Mr Color paints and applied with a Harder and Steenbeck Evolution double-action airbrush, a new acquisition which he says he needs a lot more practice with. 

Danilo chose to depict the aircraft in pre-surrender markings using Maketar masks for the hinomaru and cutting his own for the tail marking. The pitot tube was made up by telescoping brass tube.

In conclusion Danilo thinks the result is not too bad at all but expected a higher level kit. There have been mixed reports about this kit with some recording serious fit problems and others little or none. With very special thanks to Danilo for sharing these images of a model which shows no signs of tribulation in the making or the painting, and for his patience in waiting for them to appear.

Image credit: All photos © 2023 Danilo Renzulli

Wednesday 15 March 2023

Grey Blue Cockpit Interior in Ki-61

Hat tip to Lorenzo of Italy for kindly alerting to this interesting Japanese video footage clearly showing the grey-blue # 3 Ash Indigo colour (Hai Ran shoku - 灰藍色) in the interior of a Kawasaki Ki-61 Hien 'Tony' recovered to Japan from New Guinea. The colour is similar to FS 36118 Gunship Gray, ANA 603.

From 1936 the grey-blue paint was to be applied as an overall primer to replace aotake, sometimes with the addition of # 17 Faint Blue colour (Tan Sei shoku - 淡青色)  as a middle coat before the grey green # 1 Ash Green colour (Hai Ryoku shoku - 灰緑色) was applied to external surfaces in top coats, sanded and polished. The whole interior, including the cockpit, was to be painted the grey blue colour and this was introduced with the Ki-15, Ki-21 and Ki-27. In practice this continued for the cockpit into the war years, certainly for early production Ki-61, whereas aotake continued to be applied to other parts of the interior. When the application of aotake to interior surfaces was discontinued in early 1943 in order to to speed production cockpits began to be painted in other colours in a more haphazard manner, including the # 1 grey green and another darker grey green paint similar to that used for Hayate propellers.     

The grey blue paint was also found inside the wing sections of the hybrid remains of Ki-61-I Ko/Otsu c/n 379/640 (379 constructed in Sep 1943 and 640 in Nov 1943), although the wheel wells appeared to be painted in a lighter grey colour, unspecified. Whether the lighter grey paint was very badly degraded, chalked or faded grey blue is now impossible to say. The problem, as referenced before, is that restorers take an inconsistent approach to measuring and recording extant paint in surviving airframes, often just stating that new paint 'matches the original' without actual providing colour values for it, the original paint being destroyed in the process. And laying standard paint swatches against the original paint surface and photographing them is not a valid scientific method for identifying the original colour value(s). 


Added some additional details of painting technique for the 11 March 2023 blog post featuring Guillermo's Fine Molds Ki-43-III Ko .

Saturday 11 March 2023

Guillermo's 1/48 Fine Molds Hayabusa III Ko

Another splendid Fine Molds 1/48 Ki-43-III Ko, this time Guillermo kindly sharing images of his build of the kit to represent a rather battered aircraft of Hiko Dai 204 Sentai  as photographed at Matsuyama airfield on the island of Formosa (now Taiwan) in August 1945. The tail number '01' has led to speculation that this aircraft was perhaps flown by 1st Chutai leader Lt Tatsukichi Nishimoto or even the Hikotai leader Capt Wataru Takahashi. Although no other obvious command markings are visible instructions were given during mid-1945 for formation leaders to avoid the display of garish identity markings which might lead to them being singled out in combat, instructions which were not always followed.

The 204th, which had been re-designated a Hiko Sentai from its previous Kyôdô (教導 - instructional) Hiko Sentai status in February 1944, lost all Ki-43-II aircraft sent to the Philippines campaign, with 17 pilots including all Chutai leaders being killed there. The surviving flying personnel returned to Mito, Japan, by transport plane in December 1944. At Mito the unit re-equipped with the III Ko before moving to Saigon, Indo-China in February 1945.  In April part of the unit moved to Formosa and was assigned to special attack duties as the Makoto (誠 - honesty or sincerity) 204 Sentai to participate in the Okinawa campaign and in July 1945 the main force of the unit joined it there. At the end of the war surviving  personnel of the unit still in Saigon were transferred into the 126th Airfield Battalion and Dai 64 Hiko Sentai. A 204th Hayabusa II in Burma displaying the previous form of unit insignia  is shown here.  It is now known that the white 'Chinzei Hachiro' arrow flight unit insignia on the fuselage, white painted fin tip, wingtips and possibly forward part of the spinner on that Ki-43-II aircraft denoted the 1st Chutai, with the 2nd and 3rd Chutai markings applied in red and yellow respectively.

After first painting the cockpit aotake Gulllermo re-painted it using Vallejo  Model Air 71.016 FS 34088 to represent the late war olive drab colour which was also applied to the exterior upper surfaces. The seat was finished aluminium and other details painted in accordance with the Aero Detail # 29 book on Hayabusa, For the under surface Guillermo used Vallejo Model Air 71.326 IJA Grey Green (which despite the name is a warm, slightly brownish grey not to be confused with 71.321 IJA Light Grey Green). Revell Lufthansa Yellow was used for the wing leading edge IFF strips and Vallejo 70.830  WWII German Green for the propeller. The drop tanks were painted with a mix of Medium Sea Grey and Medium Blue with their data markings hand-painted using Vallejo paints.

Guillermo carefully replicated the weathering and chipping indicated in the photographs of '01' by first applying two aluminium paints, Vallejo for the fuselage and Tamiya XF-16 enamel for the wings, together with some pre-shading of panel lines. Vallejo liquid masking was then applied with a sponge. Afterwards some areas of chipping were repaired and improved, painting some irregular spots and re-touching them with Vallejo aluminium. The hinomaru and other markings were applied by paint using Colourcoats RAF Roundel Red and Tamiya XF-2 Flat White, with only the decals for '01' and minor markings used. Weathering was achieved Winsor and Newton oil paints with some pigments for soil and dust effects on the tyres. Note how the fin leading edge marking extends a point along the fuselage spine and 'wings' onto the tailplanes, a detail not always captured in illustrations or decal sheets. In some depictions the red flash is shown with a narrow yellow border.  

Guillermo's primed model tellingly reveals how the basic Hayabusa airframe remained relatively unchanged throughout production. 

And compels a repeat reiteration against the use of Ko and Otsu designations applied to the Ki-43-II as they persist in the modelosphere and with kit and decal manufacturers. The Ko, Otsu, etc., suffix designations, sometimes rendered as a, b, c, etc., in English sources, were most usually used by IJAAF to denote armament variations in fighters which do not apply to the Ki-43. The detail differences in the II series were production changes to the airframe and engine/cowling and in Japanese references these sub-types are often divided by their features into early, mid and late production types with the II Kai as the final Nakajima-built type, all using the character ki (期) which means period but is sometimes given as 'production' in English. Thus:-

初期 - (hatsu ki) = first period (Ki-43-II with annular oil cooler and long Ki-43-I wingspan)
中期 - (naka ki) = middle period (Ki-43-II with enlarged under cowling cooler and shortened wingspan)
後期 - (nachi ki) = later period (Ki-43-II with rearwards thrust exhaust stacks and landing light in port wing leading edge)
末期 - (matsu ki) = end or final period (this is the Ki-43-II Kai with individual thrust exhaust stacks but note that a further refinement was the provision of water-methanol boost to the Kai)

Only the main features of each sub-type are noted above but not all the additional detail changes, especially of armament, armour and other protective equipment/enhancements. The official IJAAF table of aircraft designations ('Table of Aircraft Desgnations and Armament, Army Air Headquarters Secret' # 16979 of 9 December 1943) makes no such distinctions as it does for other fighter types, whilst the official report 'Study of Increase of Armor, Bullet-Proofing, Fire Extinguishing Equipment and Armament on Various Aircraft; Aircraft Section; Supply Depot (Luzon)' of 22 March 1944  lists various upgrades to the II as production changes, detailing dates and first change serial numbers but no Ko or Otsu suffix are tabled. The incremental improvements in Hayabusa fuel and armour protection also counter that other persistent belief in the aircraft's inherent vulnerability. In a report on combat in Burma on 20 January 1944 the Japanese command expressed satisfaction with the improvement in fuel and armour protection for the Type 1 fighter (Hayabusa) from serial # 5800, noting that one aircraft had returned safely with 39 hits and no doubt that was one of the 23 Oscars of 50 and 204 Sentai's  47 sortied that were claimed as destroyed, probable or damaged on that day. The two Spitfire squadrons involved, 136 and 607, claimed 7 Oscars destroyed, 8 probables and 8 damaged. The Japanese reported one 'self destroyed' and two failed to return for a total of three lost. They also claimed 9 Spitfires (or 'P-40s') destroyed and 6 uncertain, whereas only two were lost. Three Spitfires returned damaged, one from a head-on attack by another Spitfire which was admitted, with two of their pilots wounded. After that digression onwards with Guillermo's excellent interior details.

With special thanks to Guillermo for sharing these images and details of his build. 

Image credit: All model photos © 2023 Guillermo; Photo via Guillermo