Aircraft, engines and other staff still missing from Museum

This page is an invitation to participate in the life if Russian Aircraft Museum. There is a lot of information I am looking for an a lot of items (aircraft, engines, even whole design teams) not presented here yet. If you can contribute some brief historic review, technical data or a photo/drawing - I'll be glad to include them with all proper credits.
Do not send photos for pages which are already illustrated!
Alexandre Savine
Right below I'll list of missing fragments that I just bumped into:
'Mercury' year/day of first flight, engine manufacturer, designer name, cabin dimensions, 3-drawing, better photo