McNabb to the rescue.Good news...was not old age...was Tseres Sukhoi thread here on GSN.
Radial engine graphic here:
http://giantscalenews.com/threads/pau-30-sukhoi-su-26.1318/page-16#post-48446
Baffle construction here:
http://giantscalenews.com/threads/pau-30-sukhoi-su-26.1318/page-11#post-38155