Thanks for your reply.
I have had some help from forum member Henk Vasmel and the past few days I've been studying Osella pictures from 1985-1987.
With all the stats I currently have I have come to these conclusions:
FA1F/F2 at Brazil, Portugal and San Marino
FA1G/G1 from Monaco onwards
FA1G/G1 in practice at San Marino
FA1F/F2 in practice at Monaco
FA1G/G1 at all races except for Belgium when he drove the FA1F/F2 (backup car) after damaging the FA1G/G2 in the warm-up
FA1F/F2 in practice at the Netherlands, Italy and European GP
FA1F/F1 from Brazil to Detroit.
FA1H/H1 in France and Great Britain
FA1G/G1 for the rest of the season
FA1H/H1 in practice at Detroit
FA1G/G1 in Brazil, Spain, San Marino, Monaco and Canada
FA1H/H1 at Belgium
FA1F/F1 in practice at San Marino
FA1G/G1 in practice at Belgium
FA1G/G1 at Detroit, France and Great Britain
FA1F/F1 for the rest of the races
FA1F/F1 in practice at France and Great Britain
FA1F/F1 at Italy
FA1I/I1 for all races except for France when he drove the FA1G/G1
FA1G/G1 at third start in Austria
FA1G/G1 in practice at Brazil, Belgium, Detroit, Great Britain, Austria and Australia
FA1F/F1 at San Marino
FA1G/G1 at Italy
Not sure on cars at Portugal and Spain. Car looks to be an FA1I but as far as I know Osella only built one FA1I.
I must say I am not a 100% sure on Caffi's car at France 1987. Caffi drove the backup car at France. I have not been able to find (good) pictures to prove or disprove this.
Some of these were quite tricky. for example, all the pictures of Allen Berg at the French GP from 1986 were in an FA1F. But then I found some pictures of the first lap of the race and Berg was definitely in an FA1G.
The same goes for Berg at the British GP. Most pictures show him in an FA1F. But the wreckage of car no.22 (after the start crash) is definitely the FA1G.
Feedback is always appreciated
Edited by Jahn1234567890, 28 June 2020 - 19:11.