They used P47. Few machines at Baltic Sea for reconnaissance :)
See: "Àìåðèêàíöû" â Ðîññèè (Â. Êîòåëüíèêîâ, Ã. Ïåòðîâ, Ä. Ñîáîëåâ, Í. ßêóáîâè÷) » ModelFan.ru - Military Books / Modelling (Âîåííûå Êíèãè / Êíèãè ïî Ìîäåëèçìó)
It seems as the well documented book.
According authors, Soviets...
Ranger V-770 engine manual.
BTW Many of data you can find here:
http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/MainFrame?OpenFrameSet
Yes. Soviet Il-2 in Battle of Kursk and later other soviet bombers too. They used ampulles AZh-2 (АЖ-2) with incendiary fluid KS (КС) similar to napalm.
Accordin to Drabkin's "I fly Il-2", these waeapom was more succesful in tank destroying than guns or bombs.
But, naturally, this was very...