GREETING FORM BLUE SMURF

Question:
What is the main function(s) of "OMEGA wave" in wave soldering?

A.   Eliminate excessive solder,
B.   Product extra thrust in the entrance region,
C.   Reduce air trapped under board
D.   All of the above
E.   Other

Question:
Is there any paper, data, or DOE outthere to backup these findings?

Thanks for your response