Mavis and Emily heavy flying boats

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Mavis and Emily heavy flying boats


IJN Kawanishi H8K3 taking  off

IJN Kawanishi H8K3 taking off


The Imperial Japanese Navy demanded a long range flying boat for search missions. The result was a large project that first deliver the H6K  Mavis which was quickly followed by the production of the famous H8K Emily. The H7Y, TILLIE, was projected only. As mentioned above, the aircraft was designed in response to a Navy requirement of 1934 for a long range flying boat.The Type S, as Kawanishi called it, was a large, four-engine monoplane with twin tails, and a hull suspended beneath the parasol wing by a network of struts.  The first prototype flew on 14 July 1936 and was originally designated Navy Type 97 Flying Boat, later H6K. Eventually, 217 would be built.

Kawanishi H6k with an engine in flames.

Kawanishi H6k with an engine in flames.


At the same time the type’s predecessor, the Kawanishi H6K, was going into service in 1938 the Navy ordered the development of a larger, longer-ranged patrol aircraft under the designation Navy Experimental 13-Shi Large-size Flying Boat. The result was a large, shoulder-winged design that is widely regarded as the best flying boat of the war. The IJNAF accepted the first production version as the H8K1, Navy Type 2 Flying Boat, Model 11, of which 14 would be built. The improved H8K2 variant soon appeared, and its extremely heavy defensive armament earned it deep respect among Allied aircrews.The H8K2 was an upgrade over the H8K1, having more powerful engines, slightly revised armament, and an increase in fuel capacity. This was to be the definitive variant, with 112 produced.36 examples of a dedicated transport version, the H8K2-L, were also built, capable of carrying 62 troops. This aircraft was also known as Seiku ( “Clear Sky”).


IJNAS H6K Kawanishi Kawanishi Navy Type 97 Flying boat 9-shi Flying Boat MAVIS
IJNAS H6K2-L Kawanishi Kawanishi Navy Type 97 Transport Flying boat MAVIS
IJNAS H6K4-L Kawanishi Kawanishi Navy Type 97 Transport Flying boat MAVIS
IJNAS H7Y Kugisho 12-Shi Special Flying boat TILLIE Project only.
IJNAS H8K Kawanishi Kawanishi Navy Type 2 Flying boat 13-shi Flying Boat EMILY
IJNAS H8K2-L Kawanishi Kawanishi Navy Transport Flying boat Seiku Seiku – Sunny Sky EMILY



These flying boats, Emily and Mavis, have been constructed by many manufacturers at different scales. The most common is 1/72 scale due to the large size of the aircraft. Here we show some of the available models:




Kawanishi H8K2 Flying Boat Limited 1/72

his is the 1/72 Scale Kawanishi H8K2 Type 2 Flying Boat ‘851st Flying Group’ Plastic Model Kit from Hasegawa. Suitable for Ages 14 & Older. FEATURES: Highly detailed plastic pieces molded in gray and clear Limited Edition Detailed cockpit with instrument panel and pilot Detailed landing gear Waterslide decals Illustrated instructions MARKING OPTIONS: One decal sheet with markings for 3 versions: 1) 851st Naval Flying Group in early 1944 2) 851st Naval Flying Group 3) 801st Naval Flying Group INCLUDES: One plastic models REQUIRES: Assembly Hobby knife (RMXR6909) Plastic cement (HCAR3415) Sprue cutters (HCAR0630) Paint (Silver, Neutral Gray, Navy Blue, Steel, Flat Black, Mitsubishi Green, Red Brown, Clear Red, Clear Blue, Flesh, Burnt Iron, Flat White, Mitsubishi Dark Green, Mitsubishi Cockpit Color, Propeller Color, Tire Black)



Kawanishi H6K5 Type 23 “Yokohama Air Group” 00880

Mavis Flying Boat



1/72 Kawanishi H6K5 Type 97 Flying Boat w/Torpedo




Technical Specifications: Kawanishi H8K2


Kawanishi H8K3


General characteristics

  • Crew: 10
  • Length: 28.15 m (92 ft 4 in)
  • Wingspan: 38.00 m (124 ft 8 in)
  • Height: 9.15 m (30 ft)
  • Wing area: 160 m² (1,721 ft²)
  • Empty weight: 18,380 kg (40,436 lb)
  • Loaded weight: 24,500 kg (53,900 lb)
  • Max. takeoff weight: 32,500 kg (71,500 lb)
  • Powerplant: 4 × Mitsubishi Kasei 22 radial engines, 1,380 kW (1,850 hp) each


  • Maximum speed: 465 km/h (290 mph)
  • Range: 7,150 km (4,440 mi)
  • Service ceiling: 8,760 m (28,740 ft)
  • Rate of climb: 8.1 m/s (1,600 ft/min)
  • Wing loading: 153 kg/m² (31 lb/ft²)
  • Power/mass: 0.22 kW/kg (0.14 hp/lb


  • Guns:
    • 5× 20 mm Type 99 cannon (one each in bow, dorsal, and tail turrets, plus one each in two waist blisters)
    • 5× 7.7 mm (.303 in) Type 92 machine guns in fuselage hatches
  • Bombs: 2× 800 kg (1,764 lb) torpedoes or 2,000 kg (4,410 lb) of bombs or depth charges


  • Mark VI Model 1 ASV radar



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