Nipponki '46 - EK-2 Experimental Single-Seat Destroyer

[Johnbr]

DATA

Engine: Ryusei GV twin-row 18-cylinder radial

Max output: 3000hp with 4-step supercharger

Propeller: EK-P-1 constant speed, variable pitch, changing electrically, with full feathering and cuffs (propeller cuff : a fairing of suitable airfoil shape used to cover the shanks of propeller blades in order to reduce the aerodynamic losses - MW)

Performance
Max. speed: 712km/h

Cruising speed: 670km/h

Landing speed: 150km/h

Range at cruising speed: 2800km with drop tank

Ceiling: 1600 m (???)

Climbing at 1000m in 40sec

Wing area: 17sqm

Weight: 2669kg

Wing load: 157kg/sqm

Armament: 2 X 36mm cannon in the fuselage

4 X 20mm cannons in the wings
Notes:

1. The radial engine is placed in the centre of gravity for better balance. The propeller is driven by an extension shaft for better cooling (???).

2. Although difficult for mass production the wings are tapered.

3. Twin flaps

Designed by: Sekikawa Eijiro from Kobe

Featured in the June 1943 issue of "Hiko Shonen" (Airplane Youth)

 

[airman]

Seems be aircraft - propaganda

 

[GTX]

Seems fictional to me (happy to be proven wrong in this regard though) with elements of a Spitfire, P-39 and maybe even Bell XP-77 and Mitsubishi J2M thrown in for good measure.

 

[airman]

mentioned also in http://arawasi-wildeagles.blogspot.com/2018/12/nipponki-46-ek-2-experimental-single.html - arawasi .

 

[DWG]

Featured in the June 1943 issue of "Hiko Shonen" (Airplane Youth)

Which probably puts it in the category of 'real, but amateur'.

 

[blackkite]

Hiko Shonen（飛行少年） was a wartime children's magazine. This was a book from a group called the Great Japan Flight Association（大日本飛行協会）, and it seems to be mainly written content that raises young people to be airmen.

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