 (EI-238), CV Shokaku
LCdr Kokuichi Takahashi
Lt Soizu Koizumi
1.Wave/1.Chutai/20.Shotai/1.Aircraft

Here is an extract from my aircraft cfg:
You might want to copy the

title-line for proper appearance in the games menu

and the 

texture-line to find the texture folder, (or you can rename the folder itself, too)

[fltsim.0]
title=IJN(CV Shokaku)`41 (EI-238) D3A1 VAL -Takahashi-
sim=D3A2 Val (CFS2)(1%,2.80)
model=\..\..\_Model\WW II\Japan\D3A1 Val (CFS2)
panel=\..\..\_Panel\WW II\Japan\D3A1 Val
sound=\..\..\_Sound\WW II\Fighter\Radial\George
Texture=(BI-231)_(LCdr Kokuichi Takahashi)
KB_checklists=D3A2 Val (CFS2)(1%,2.80)_Check