Hello!
Eugen's first posts left Chekin's unit unknown (given only after my first reply) and the only ShAP unit given was 35 ShAP at the end. Therefore I jumped into wrong conclusion of Chekin's unit.
If Chekin was from 566 ShAP then they most certainly were not escorted by 12 IAP and perhaps by no-one then as the pilot says. 566 ShAP was Army unit ( 13th Air Army, 277 ShAD) and 12 IAP from Baltic Fleet.
But it looks like both units (12 IAP & 566 ShAP) were at the same place at the same time. Koivisto is a cape so very much KBF aviation "playground".
I would also like to point out that I called for comparison of the events described and I did not state anything.
Kari
PS Check this interactive map of sunken ships - it includes also planes and couple of tanks!:
http://www.baltic-sunken-ships.ru/ma...?mid=3&Ing=RUS
The map is clickable and zoomable.
It looks like there is a Fw 190 found near Koivisto. If not familiar, map of the Viipurinlahti Bay area (with some names) can be found for example here:
http://users.tkk.fi/~jaromaa/Navygallery/Misc/Maps/Viipurinlahti.gif
(Finnish Navy mainpage at:
http://users.tkk.fi/~jaromaa/Navygallery/index.htm )