Hello all,
I have both JAR 66 B1 B2 and a frozen ATPL.
I did my ATPL in France where it takes 12 month. Did my Jar 66 in Switzerland where you do your modules in about 3 months.
It is hard to compare but for the JAR 66 I passed the exams for each module at the end of the course. For the ATPL I took 7 exams after the first 5 months, then the rest.
I would say the ATPL seemed a bit harder for me. But It could be because I did it on distance learning.
On the ATPL you have less technical stuff, on the Jar 66 less aircraft operation stuff. One can t replace the other one.
I doubt any CAA will give credit to some Jar 66 modules based on a ATPL.
Regards,
og