From Japan, courtesy of Mr Sugar here are some images of his fine build of the Fine Molds 1/72nd scale kit of the Kyushu Q1W1 IJN patrol aircraft. The Fine Molds kit is excellent, still available and very reasonably priced by comparison with many others these days, representing a very good model of this unsung workhorse. The president of Fine Molds described this kit as the most accurate and detailed the company had ever produced.
The Q1W1 was designated 'Navy Patrol Aircraft Model 11 'Tokai' (東海) meaning East or Eastern Sea and was developed from a prescient 1942 specification for a low-speed, long range aircraft with three crew members, the ability to make steep diving attacks and to operate safely over the ocean. The first prototype was completed in September 1943 and quantity production was ordered in early 1944. Only 153 aircraft of this type were built and operated mainly over Japanese home waters, around Formosa and along the China coasts. Mr Sugar's model depicts one of the kit options - a radar-equipped aircraft identified as belonging to the Shanghai detachment of the 901st Ku (Kokutai - Air Group) based at Shanghai, China during the summer of 1945. However this unit is identified as the Chushi (中支 - Central China) Kokutai, an Otsu Kaigun Kokutai, at j-aircraft.com. The character on the tail is naka (中) meaning middle or centre, and alludes to the Chinese characters for old China - 中國 (Zhōngguó or in Cantonese Zung Gwok) meaning Middle Kingdom.
The second of two options provided in the kit is for an aircraft identified as from the Saiki Kokutai based at Saiki in Japan during the summer of 1944 and equipped with magnetic anomaly detection gear rather than radar to detect submarines. The Japanese called this equipment 'Jikitanchiki' (磁気探知機 - literally magnetic atmosphere look and find mechanism) meaning magnetic detector and the equipment installed in Lorna was the Type 3 Model 1 KMX (monitoring equipment shown below) based on the Fluxgate Magnometer with a frequency multiplier devised by the Sony Corporation co-founder Masaru Ibuka.
Looking somewhat like a mutated and rather sedate Junkers Ju-88 Lorna's armament was limited to a flexible 7.7mm rear gun handled by the radio operator and the capability to carry two 250 kg depth charges. Some sources report the addition of one or two 20mm cannon in the nose which might make an interesting model. Detection equipment consisted of the Type 3 search radar or the magnetic anomaly detection gear described above. The Type 3, or Type 3 Ku Mk.6 Wireless Telegraph Model 4 to give it its full deceptive title, was an ASV (Air-to-Surface Vessel) radar with the capability to detect a 10,000 ton ship at 51 km from 10,000 ft altitude. The set usually consisted of a Yagi-type forward antenna (mounted on the nose or in this case the starboard wing leading edge) and two fuselage mounted antennae with the transmitter, receiver and indicator units inside the cockpit. This equipment is quite faithfully reproduced in the Fine Molds kit which boasts rather fine interior detail (and superb box art!). The interior detail can especially be appreciated because the kit comes with the option to display the clear canopy with its top hatches open and the rear gun position open for the flexible gun to be shown deployed. However the flexible gun is not included in the kit and must be sourced separately. The kit does include drop tanks and depth charges (not shown on Mr Sugar's model).
Other than the specific Japanese aircraft interest any collection of ASW/ASV aircraft could include Lorna as representative of the pioneering aircraft and equipment used in this role. For a more in-depth discussion of the search techniques employed by radar and MAD equipped aircraft please refer to this thread at j-aircraft.com which includes photographs of the actual Tokai modelled here - showing both radar equipment and the fuselage 'C' marking on 中-901.
Image credits: Model pics © 2011 Mr Sugar; KMX photo © 2007-2010 Enoki Flying Board; Box © 1998 Fine Molds