Just out of curiosity, what's the difference between a MiG 15 and a MiG 17?
Is it just a longer fuselage on the 17, or were there other changes as well?
Not sure about all versions offhand , but some 17s atleast had streamlined radar blisters above the nose intake too.
Got scale drawings of the variants at home, drop us your address in a PM if you're interested and I'll send them to you.