Those are not staysails, they are the standard racing jib
. The sail in front of them is a genoa
(code 0), and is only put up for reaching and very light air (like in San Diego
- they weren't used at all in the Plymouth series). The boats usually don't take the jib
down when the genoa
is flown because the courses are so short and the boat speeds so fast. They would lose more time changing sails
than they gain in the extra efficiency. The code 0 is on a furler
, so it is easy to take in and down.