You need to check you have inputed the correct air, plane and weapon txt lines into their correct files, also what 'buttons' are you using in DBW?
I have the plane, and the 2 other variants - Shinden field mod and Shinden Kai, all working in DBW1.71 and without the need for any buttons. I just unzipped and placed the folders in #DBW and then added the air.ini line ... nothing more should be necessary. Buttons are, thankfully, Praise the Lord and Hallelujah, no longer necessary for DBW - and not a day too soon either.
Anyway, start over, even download the files again just to be on the safe side, be certain you have the folders in #DBW at the correct depth and add the lines to air.ini.
And maybe a silly tip, but be sure that the game loads BEFORE you add the lines to the air.ini. Maybe something else is causing a ctd. And if you fixate on the Shinden, you may never realize it is something else causing the ctd. This has happened to me more than once ...