16 shi specifications for Zero replacement

[Hardrada55]

Have the original 16-Shi Japanese Navy specifications for the successor to Mitsubishi's A6M "Zero" fighter ever surfaced?

As I understand it, there was a delay in starting design work on the 16-Shi design for a successor to the new A6M in 1940 and 1941 because of problems with development of the 14-Shi Mitsubishi J2M land based interceptor "Raiden" and the illness of chief designer Jiro Horikoshi. By the time Mitsubishi was able to return work on the successor to the Zero, it was April of 1942 and the specifications had been updated to the 17-Shi version. The 17-Shi specifications resulted in the Mitsubishi A7M "Sam" carrier fighter.

 

[blackkite]

I checked "Repu and Repu-kai" (Gakken ISBN4-05-602990-3). BTW unfortunately I can't find any information about the specification for the 16-shi carrier fighter. The required specification for the 17-shi carrier fighter in April 1942 by IJN were as follows.

Maximum speed:345knots/h(639km/h)@6000m, Time to climb to 6000m:less than 6minutes, Endurance:Maximum speed 30minutes+250knots 2.5hours(Normal), Maximum speed 30minutes+250knots 5hours(Over load condition), Take off runs:80m(over load condition with counter wind 12m/s),Landing speed:67knots/h(124km/h), Limit speed:450knots/h(832km/h), two 20mm cannons,two 13mm guns.