While leining Va'etxanan last Shabbat, I noticed the length of sheini (almost two full columns) and wondered whether any other aliyot in the Torah were longer. I immediately thought of one candidate --- sheini in Ki Tisa --- but it turned out that there were two others that I hadn't thought of.
In any case, here's what I did. I went through an entire tiqun looking for long aliyot and wrote down the length of each one in columns and lines. Note that most sifrei Torah today have 42 lines in each column, so the maximum "lines" count in an aliya is 41 before it becomes a full column. The process took me about 80 minutes, most of it making sure that I was counting lines and columns accurately. A word about the counting process.
There was a small amount of subjectivity in deciding what to do with partial lines at the beginning and/or end of an aliya. I tried to decide whether the partial lines (combined at the beginning and end if there were partial lines on both ends) represented less than half a line (which I counted as zero), between 0.5 and 1.5 lines (which I counted as 1), or more than 1.5 lines (which I counted as 2). Note that I took partial lines into account ONLY at the two ends of an aliya --- I ignored p"tuxot and s"tumot in the middle of a given aliya and gave the aliya "credit" for a full line despite these blank spaces.
My original intention was to define a "long" aliya as at least 1-1/2 columns (i.e., 1 column and 21 lines) --- but I actually found two cases that were just 1 or 2 lines short of that cutoff (i.e., 1:20 and 1:19), so I made note of them when I compiled the results.
I also wasn't sure how to treat aliyot in a double parsha, which usually combine several "regular" aliyot. Including them in the same list as the others would be like comparing apples to oranges, and I eventually decided to put them in a completely separate list.
See the attached spreadsheet for the results. Note the following.
(1) The aliya in Va'etchanan that motivated this endeavor turned out to be the fourth longest. In addition to the three longer "regular" aliyot, there are also two longer "double parsha" aliyot.
(2) Two sidrot (כי תשא and נשא) each contain two of the long aliyot.
(3) The great majority of the "long" aliyot are just a few lines longer than the 1-1/2 column cutoff. Only 5 aliyot in the Torah exceed this cutoff by more than 10 lines. So a slightly more stringent definition of "long" could have made this list much more exclusive. In fact, there are only 3 aliyot that exceed 2 columns (one of which is almost 3 columns).
Enjoy! Comments are welcome.
Art