Av. Gen. Confidential No.79
February 27th, 1945
Aviation Headquarters General Affairs Department 2nd Section
Memo of Experimental Ōka and Kikka Production Meeting
1: The production schedule is to be adjusted as shown below (draft).
| Model ーー Date | Ōka | Kikka | Modified Ginga | Modified Type 1 Rikkō | |||||
| Model 11 | Model 22 | Model 33 | |||||||
| Until 3/1945 | 750 | Depending on the conditions it may be decided to carry the Ōka Model 22 | |||||||
| 4 | |||||||||
| 5 | 1 | ||||||||
| 6 | 3 | 50 | |||||||
| 7 | 44 (+6) | 5 | 4 | 5 | 50 | ||||
| 8 | 50 | (+6) | 5 | 4 | 30 | 50 | |||
| 9 | 50 | 45 | 50 | 50 | 50 | ||||
| 10 | 50 | 50 | 50 | 50 | 50 | ||||
| 11 | 50 | 50 | 50 | 50 | 50 | ||||
| 12 | 50 | 50 | 50 | ||||||
| 1 | 50 | 50 | 50 | ||||||
| 2 | 50 | 50 | 50 | ||||||
| 3 | 50 | 50 | 50 | ||||||
| Total | 750 | 50 | 255 | 6 | 350 | 362 | 355 | 300 | |
| Co. Name | 1st Arsenal | 1st Technical Arsenal | Aichi | 1st Technical Arsenal | Aichi | Nakajima | 1st Arsenal | ||
| Notes | To be discontinued in March | The (+6) are for testing examinations | Consider raising as much as possible | For testing examinations | Separately consider construction location | ||||
2: Based on the draft above, it is decided to circulate a draft manufacturing decision for fine consideration between the Aviation Headquarters and the Ministry of Munitions.
3: When creating the production request, this shall clearly specify how the materials in the policy below from part of the previous FY1945 requirement will be cut into. The basic details will be decided with studies of each case.
For Ōka, [materials for] fighters (the airframe) (the nose is studied separately as to bomb/torpedo [materials]).
For Kikka, [materials for] attackers
4: Due to the urgent situation at the Aichi company regarding the Ōka Model 22, it is decided to discontinue the ongoing production of the Zuiun in that company. The details of this will be decided upon a separate study.
5: Sufficient considerations must be given to dispersal away from bombing while prototyping and producing the Ōka and Kikka.
Therefore, the utilization of the Maizuru area should be considered for production of the Ōka Model 33.
6: Considering the critical timing of these planes, sufficient consideration must be given to mass production at an early stage. Particularly, the production of the Ōka Model 22 should be accelerated as much as possible.
7: It is decided to conduct research next on Ōka variants for catapult launching and towing.
8: Production of the Ōka Model 11 will be discontinued in March 1945.
9: A separate request will be made for the power plants of the aircraft like in line 1.
10:
| Date | February 27th | February 28th |
| Location | Aviation HQ General Affairs Dept. Chief’s Room | Aviation HQ 2nd Dept. Chief’s Room |
| Attendees | Aviation HQ: Gen Affairs Dept Chief, Ikegami, Itō, Setoyama, 2nd Sec Chief, Maki, 2nd Dept 1st Sec Chief, Ejima Military Affairs: Inoguchi General Staff: 3rd Sec Chief, Matsūra Ministry of Munitions: Fujiwara | Aviation HQ: 2nd Dept Chief, 2nd Dept 1st Sec Chief, Itō, Yutani, Yakata Ministry of Munitions: Matsūra |