(New) Start Sequence

Flag	Action	Time to start
ñ   Warning	Class Flag goes UP horn is sounded	5 minutes to START
Preparatory  ñ	P Flag goes UP horn is sounded	4 minutes to START
One Minute                    Preparatory  ò	P Flag goes DOWN horn is sounded	1 minute to START
ò Start	Class Flag goes DOWN	START

also........ Postponement (AP)